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- 1. Multiple ChoiceAlpha particles.....a) are positively charged.b) consist of two protons and four neutrons.c) can penetrate any thickness of matterd) All of the above
- 2. Multiple ChoiceThe process of nuclear change in an atom of radioactive material is called...nuclear decaynuclear massisotopesradon
- 3. Multiple ChoiceDuring beta decay, a nucleus ....gives up two protons and two neutrons.maintains the same number of protons and neutrons.loses a proton and gains a neutron.gains a proton and loses a neutron.
- 4. Multiple ChoiceWhen a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....remains the samedecreases by one.increases by one.increases by two.
- 5. Multiple ChoiceThe process of the production of lighter nuclei from heavier nuclei is calledmass energymagneticismfusionfission
- 6. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 7. Multiple ChoiceThe type of radioactive particle that can be stopped by a sheet of paper is the ____.alpha particlebeta particlegamma rayuranium
- 8. Multiple ChoiceThe most penetrating type of radiation is the ____.alpha particlegamma raybeta particleuranium
- 9. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 10. Multiple ChoiceNegatively charged particles emitted from a nucleus at a high speed are ____.alpha particlegamma raysbeta particlesX rays
- 11. Multiple ChoiceThe three types of nuclear radiation in increasing order of penetrating power are ____.alpha, beta, gammaX ray, beta, gammaalpha, gamma, betaX ray, gamma, beta
- 12. Multiple ChoiceRadioactive tracers are useful in ____.calculating the ages of fossilsfueling nuclear reactionsdetermining medical problemstreating brain tumors
- 13. Multiple ChoiceThe process by which nuclei having low masses are united to form nuclei with larger masses is ____.a chain reactionfissiona chemical reactionfusion
- 14. Multiple ChoiceFor which of the following problems would a scientist most likely use carbon-14?
to calculate the age of the Earth's oldest rocksto calculate the age of a piece of boneto identify the elements that make up a rockto identify the elements that make up a bone - 15. Multiple ChoiceAfter the nucleus of a radioactive element undergoes changes, the element can transform into ...(a) a different isotope of the same element.(b) an entirely different element.Both (a) and (b)Neither (a) nor (b)
- 16. Multiple Choice
In a pressurized water reactor( PWR) _____________
Light or heavy water is used as both coolant and moderator.
The coolant water boils in the reactor core.
Water is used at high pressure
Both (a) and (c).
- 17. Multiple Choice
The reason for providing the thermal shielding is to _________________
Absorb the fast neutrons
Protect the operating personnel from exposure to radiations
Prevent the reactor wall from getting heated
All of the above
- 18. Multiple Choice
The nuclear energy is measured as........
MeV
MW
Curie
None of the above
- 19. Multiple Choice
Which is the most commonly used moderator?
Graphite
Sodium
Deuterium
Heavy water
- 20. Multiple Choice
U238 will undergo fission by
Slow neutrons alone
fast neutrons alone
Either fast or slow neutrons
medium energy neutrons
- 21. Multiple Choice
The best capable alternative source which can meet the future energy demand is
thermal power plant
nuclear power plant
hydroelectric power plant
geothermal power plant
- 22. Multiple Choice
How much coal is required to generate energy equivalent to the energy generated by 1 kg of uranium?
30000 tonnes of high grade coal
300 tonnes of high grade coal
10000 tonnes of high grade coal
3000 tonnes of high grade coal
- 23. Fill in the Blank
The Famous nobel lecturette speaking in the audio clip is _________.
- 24. Multiple ChoiceAlpha particles.....a) are positively charged.b) consist of two protons and four neutrons.c) can penetrate any thickness of matterd) All of the above
- 25. Multiple ChoiceThe process of nuclear change in an atom of radioactive material is called...nuclear decaynuclear massisotopesradon
- 26. Multiple ChoiceDuring beta decay, a nucleus ....gives up two protons and two neutrons.maintains the same number of protons and neutrons.loses a proton and gains a neutron.gains a proton and loses a neutron.
- 27. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 28. Multiple ChoiceThe type of radioactive particle that can be stopped by a sheet of paper is the ____.alpha particlebeta particlegamma rayuranium
- 29. Multiple ChoiceThe most penetrating type of radiation is the ____.alpha particlegamma raybeta particleuranium
- 30. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 31. Multiple ChoiceNegatively charged particles emitted from a nucleus at a high speed are ____.alpha particlegamma raysbeta particlesX rays
- 32. Multiple ChoiceThe three types of nuclear radiation in increasing order of penetrating power are ____.alpha, beta, gammaX ray, beta, gammaalpha, gamma, betaX ray, gamma, beta
- 33. Multiple ChoiceIn what part of an atom can protons be found?Inside the electronsInside the neutronsInside the atomic nucleusInside the electron shells
- 34. Multiple Choice
Has the symbolAlphaBetaGammaelectron - 35. Multiple ChoiceHas the symbolAlphaBetaGammaneutron
- 36. Multiple ChoiceIf Thorium-234 undergoes a beta decay, What element will be left in its place?Actinium-234Thorium-233Protactinium-234Radium-230
- 37. Multiple ChoiceIf we start off with element 5024X after an gamma decay we get another element that looks like5224X5023X5024X5025X
- 38. Multiple ChoiceIf we start off with element 5024X after an beta decay we get another element Y that looks like5023Y4622Y5025Y5024Y
- 39. Multiple ChoiceIf we start off with element 5024X after an alpha decay we get another element Y that looks like5022Y4622Y4820Y5426Y
- 40. Multiple Choice
What type of decay is shown here
23892U ---> 23490Th + 42He.
alpha
beta
gamma
- 41. Multiple Choice
What type of nuclear decay is shown here
13756Ba →→ 13756Ba + γ rays
alpha
beta
gamma
- 42. Multiple Choice
Finish this equation
20983Bi--> _______ + 20581Tl
42He
0-1e
y
- 43. Multiple Choice
Identify the type of nuclear decay shown here
21483Bi → 0-1e + 21484Po
alpha
beta
gamma
- 44. Multiple Choice
finish the equation
22688Ra --> ____ + 22688Ra
42He
0-1e
y
- 45. Multiple Choice
finish the equation
18173Ta --> ____ + 18174W
42He
0-1e
y
- 46. Multiple Choice
Identify the type of nuclear decay shown here
21483Bi → 0-1e + 21484Po
alpha
beta
gamma
- 47. Multiple Choice
What type of decay is shown here
23892U ---> 23490Th + 42He.
alpha
beta
gamma
- 48. Multiple Choice
What type of nuclear decay is shown here
13756Ba →→ 13756Ba + γ rays
alpha
beta
gamma
- 49. Multiple Choice
Finish this equation
20983Bi--> _______ + 20581Tl
42He
0-1e
y
- 50. Multiple Choice
Identify the type of nuclear decay shown here
21483Bi → 0-1e + 21484Po
alpha
beta
gamma
- 51. Multiple Choice
finish the equation
22688Ra --> ____ + 22688Ra
42He
0-1e
y
- 52. Multiple Choice
finish the equation
18173Ta --> ____ + 18174W
42He
0-1e
y
- 53. Multiple Choice
Which force holds protons and neutrons together in the atom nucleus?
electric force
gravity
strong nuclear force
weak nuclear force
- 54. Multiple Choice
Which of these is an alpha particle?
A
B
C
D
- 55. Multiple Choice
Carbon-14 and carbon-12 have the same number of protons but a different number of neutrons. These different forms of the same element are called
radioactive
isotopes
nuclei
tracers
- 56. Multiple Choice
The mass number of a nucleus is equal to ______.
the number of protons plus the number of neutrons
the number of electrons
the number of protons
the number of neutrons
- 57. Multiple Choice
What type of nuclear decay is represented in this illustration?
beta decay
gamma radiation
alpha decay
nuclear fusion
- 58. Multiple Choice
Which happens in a nucleus during gamma decay?
The number of protons increases.
The number of neutrons increases.
The number of protons remains the same.
The total number of neutrons plus neutrons decreases.
- 59. Multiple Choice
When a neutron turns into a proton in a nucleus, what sort of particle is emitted?
alpha
beta
gamma
photon
- 60. Multiple Choice
Gamma rays _________.
have no mass and no charge
have mass but no charge
have no mass but have charge
have mass and charge
- 61. Multiple Choice
What are found in the nucleus of an atom?
protons and electrons
electrons and neutrons
protons, neutrons, and electrons
protons and neutrons
- 62. Multiple Choice
Protons do not repel each other in the nucleus because of the ______.
weak force
electric force
strong force
gravitational force
- 63. Multiple Choice
In a radioactive nucleus, the electric force _____ the strong force.
balances
overpowers
is overpowered by
adds to
- 64. Multiple Choice
Which of these is not a type of nuclear radiation?
alpha particles
beta particles
gamma rays
microwaves
- 65. Multiple Choice
How does the alpha decay of a nucleus cause the nucleus to change?
Only the number of protons decreases.
Only the number of neutrons decreases.
The number of neutrons and the number of protons decrease.
The number of protons increases and the number of neutrons decreases.
- 66. Multiple Choice
Which of these is a true statement about the products of the decay compared to polonium-210?
The charges are equal but the mass numbers are not equal.
The mass numbers are equal but the charges are not equal.
The mass numbers and charges are equal.
Neither the mass numbers nor the charges are equal.
- 67. Multiple Choice
A hydrogen nucleus has only one proton. How many neutrons are in a hydrogen-3 nucleus?
0
1
2
3
- 68. Multiple Choice
The three types of nuclear radiation in order of decreasing penetrating power are
alpha, beta, gamma
alpha, gamma, beta
beta, alpha, gamma
gamma, alpha, beta
- 69. Multiple Choice
Thermonuclear bomb works on the principle of:
Fission
Fusion
Both A and B
None of the above
- 70. Multiple Choice
Which article of clothing was oddly named for a nuclear testing site?
Bikini
Fedora
Cravat
Swimsuit
- 71. Multiple Choice
Nuclear medicine is a medical Specialty involving the application of radioactive substances in the diagnosis and treatment of Disease.
True
False
- 72. Multiple Choice
What dangerous byproduct is produced by nuclear power plants?
Carbon dioxide
Methane
Radioactive waste
Smoke
- 73. Multiple Choice
Which of the following country produces the most nuclear energy?
India
China
Russia
USA
- 74. Multiple Choice
Identify the famous nuclear physicist.
P. K. Iyenger
Homi J. Bhaba
Niels Bohr
James Chadwick
- 75. Multiple Choice
Identify the movie.
Krrish
PK
Parmanu
Mission Mangal
- 76. Multiple Choice
Which of the following is/are NOT true about Indian space research? (choose one or more)
ISRO was set up in 1962.
Satish Dhawan Space Centre (SDSC), SHAR is situated in Bangaluru
The first satellite launched in India was Aryabhatta.
Great scientist Dr. Vikram Sarabhai is known as the father of Indian space research.
- 77. Fill in the Blank
The full form of GSLV is
- 78. Poll
Who is your favorite scientist?
A P J Abdul Kalam
C V Raman
S N Bose
Homi J Bhaba
Bikram Sarabhai
- 79. Open Ended
Write down three (3) applications of radioactive elements.
- 80. Fill in the Blank
The current chairman of ISRO
- 81. Multiple Choice
Who among the following were the former chairman of ISRO? (More than one option may be correct)
A. S. Kiran Kumar
Ajit Kumar Mohanty
K. Radhakrishnan
G. Satheesh Reddy
- 82. Fill in the Blank
Dr Vikram Sarabhai Space Centre is located in
- 83. Multiple Choice
Which equation correctly represents the alpha decay of polonium-214?
A
B
C
D
- 84. Multiple Choice
This equation shows the radioactive decay of thorium (Th). Which of the following particles is released in this reaction?
alpha
beta
neutron
gamma
- 85. Multiple ChoiceWhat particle completes this reaction?alpha particlebeta particlegamma particleneutron
- 86. Multiple Choice
it's 88 because element X gains 2 protons
it's 218 because element X loses 2 protons and 2 neutrons
it's 220 because element X loses 2 neutrons
it's 226 because element X gains 2 protons and 2 neutrons
- 87. Multiple ChoiceAfter the nucleus of a radioactive element undergoes changes, the element can transform into ...(a) a different isotope of the same element.(b) an entirely different element.Both (a) and (b)Neither (a) nor (b)
- 88. Multiple ChoiceThe process of nuclear change in an atom of radioactive material is called...nuclear decaynuclear massisotopesradon
- 89. Multiple ChoiceDuring beta decay, a nucleus ....gives up two protons and two neutrons.maintains the same number of protons and neutrons.loses a proton and gains a neutron.gains a proton and loses a neutron.
- 90. Multiple ChoiceThe process of the production of lighter nuclei from heavier nuclei is calledmass energymagneticismfusionfission
- 91. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 92. Multiple ChoiceThe type of radioactive particle that can be stopped by a sheet of paper is the ____.alpha particlebeta particlegamma rayuranium
- 93. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 94. Multiple ChoiceThe three types of nuclear radiation in increasing order of penetrating power are ____.alpha, beta, gammaX ray, beta, gammaalpha, gamma, betaX ray, gamma, beta
- 95. Multiple ChoiceThe process by which nuclei having low masses are united to form nuclei with larger masses is ____.a chain reactionfissiona chemical reactionfusion
- 96. Multiple Choice
What type of nuclear decay is shown here
13756Ba →→ 13756Ba + γ rays
alpha
beta
gamma
- 97. Multiple Choice
Identify the type of nuclear decay shown here
21483Bi → 0-1e + 21484Po
alpha
beta
gamma
- 98. Multiple ChoiceAlpha particles.....a) are positively charged.b) consist of two protons and four neutrons.c) can penetrate any thickness of matterd) All of the above
- 99. Multiple ChoiceDuring beta decay, a nucleus ....gives up two protons and two neutrons.maintains the same number of protons and neutrons.loses a proton and gains a neutron.gains a proton and loses a neutron.
- 100. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 101. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 102. Multiple ChoiceNegatively charged particles emitted from a nucleus at a high speed are ____.alpha particlegamma raysbeta particlesX rays
- 103. Multiple ChoiceSolve this equation for alpha decay.
85209At = ___ + 24He83205Bi86209Rn81207Tl85208At - 104. Multiple ChoiceSolve this equation for beta decay.
614C = ___ + -10e410Be714N210He613C - 105. Multiple Choice
In alpha decay, the mass number...
increases by 2
decreases by 2
increases by 4
decreases by 4
- 106. Multiple Choice
In alpha decay, the atomic number...
increases by 2
decreases by 2
increases by 4
decreases by 4
- 107. Fill in the Blank
The mass number of Neptunium (Np) is _____.
- 108. Fill in the Blank
The atomic number of Neptunium (Np) is _____.
- 109. Fill in the Blank
The atomic number of Actinium (Ac) is _____.
- 110. Multiple Choice
In beta decay, the mass number
decreases by 4.
increases by 1.
stays the same.
decreases by 2.
- 111. Multiple Choice
In beta decay, the atomic number
decreases by 2.
increases by 1.
stays the same.
decreases by 1.
- 112. Multiple Choice
Oxygen-19 produces ________________ through beta decay.
nitrogen-19
fluorine-19
carbon-14
lead-208
- 113. Multiple ChoiceThe process of nuclear change in an atom of radioactive material is called...nuclear decaynuclear massisotopesradon
- 114. Multiple ChoiceDuring beta decay, a nucleus ....gives up two protons and two neutrons.maintains the same number of protons and neutrons.loses a proton and gains a neutron.gains a proton and loses a neutron.
- 115. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 116. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 117. Multiple Choice
Carbon-14 and carbon-12 have the same number of protons but a different number of neutrons. These different forms of the same element are called
radioactive
isotopes
nuclei
tracers
- 118. Multiple Choice
The mass number of a nucleus is equal to ______.
the number of protons plus the number of neutrons
the number of electrons
the number of protons
the number of neutrons
- 119. Multiple Choice
What type of nuclear decay is represented in this illustration?
beta decay
gamma radiation
alpha decay
nuclear fusion
- 120. Multiple Choice
How does the alpha decay of a nucleus cause the nucleus to change?
Only the number of protons decreases.
Only the number of neutrons decreases.
The number of neutrons and the number of protons decrease.
The number of protons increases and the number of neutrons decreases.
- 121. Multiple Choice
A neutron changes into a proton and an electron releasing this type of particle.
alpha decay
beta decay
gamma decay
all of the above
alpha & beta decay
- 122. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 123. Multiple ChoiceWhich type of nuclear radiation is being emitted here?Alphabetagammanone
- 124. Multiple ChoiceHas the highest penetrating power. Can penetrate our body. Even several cm thick of lead or several meters thick of concrete cannot stop all of it.AlphaBetaGamma
- 125. Multiple ChoiceHas the lowest penetrating power. Can only penetrate 0.05 mm into the body and can be stopped by a piece of paper or clothing.AlphaBetaGamma
- 126. Multiple ChoiceUranium-238 decays into Thorium-234 by emitting .........an alpha particlea beta particlegamma raysvisible light
- 127. Multiple ChoiceThis is an example of...Fission reactionFusion reactionDecomposition reactionDecay
- 128. Multiple ChoiceWhich process involves the joining of small nuclei?Beta decayAlpha decayNuclear fissionNuclear fusion
- 129. Multiple ChoiceWhich of the following is true about nuclear fusion?It is easy to implement.It produces less energy than nuclear fission.It produces more energy than nuclear fission.It has the ability to occur easily in everyday life.
- 130. Multiple ChoiceTakes two small nuclei and combines them into a larger nucleusfissionfusion
- 131. Multiple ChoiceThe splitting of a nucleus into smaller nuclei isfusionfissionhalf-lifegamma radiation
- 132. Multiple ChoiceHow do nuclear power-plants work?FusionHalf-lifeFissionFusion or fission
- 133. Multiple ChoiceThis is an example of...Fission reactionFusion reactionDecomposition reactionDecay
- 134. Multiple ChoiceWhere does fusion occur naturally?UnderwaterAll around usIn the radioactive wasteOn the sun
- 135. Multiple ChoiceAn example of an uncontrolled fission reaction is _______________Nuclear power plantsRadio active decayAtomic BombOn the surface of the sun
- 136. Multiple ChoiceNuclear fusion releases energy when:heavy ions fuse togethervery light nuclei fuse togetheruranium splits into two fragmentsuranium emits a neutron
- 137. Multiple ChoiceIn the symbol 20682Pb what does 206 stand for?Mass numberAtomic numberAtomic massNumber of protons
- 138. Multiple ChoiceAlpha particles.....a) are positively charged.b) consist of two protons and four neutrons.c) can penetrate any thickness of matterd) All of the above
- 139. Multiple ChoiceDuring beta decay, a nucleus ....gives up two protons and two neutrons.maintains the same number of protons and neutrons.loses a proton and gains a neutron.gains a proton and loses a neutron.
- 140. Multiple ChoiceWhen a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....remains the samedecreases by one.increases by one.increases by two.
- 141. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 142. Multiple ChoiceThe type of radioactive particle that can be stopped by a sheet of paper is the ____.alpha particlebeta particlegamma rayuranium
- 143. Multiple ChoiceThe most penetrating type of radiation is the ____.alpha particlegamma raybeta particleuranium
- 144. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 145. Multiple ChoiceNegatively charged particles emitted from a nucleus at a high speed are ____.alpha particlegamma raysbeta particlesX rays
- 146. Multiple ChoiceOne disadvantage of nuclear energy is ___.it is a fossil fuelit leaves behind radioactive wasteit emits large amounts of pollution into the atmospherethere are no disadvantages
- 147. Multiple ChoiceWhich of these statements correctly describes how the chain reaction occurs in nuclear fission.Uranium releases electrons to create electricityWhen a nuclear fission reaction occurs, the electrons emitted can strike other nuclei in the sample, and cause them to splitWhen a nuclear fission reaction occurs, the neutrons emitted can strike other nuclei in the sample, and cause them to splitProtons and neutrons change to electrons because the nuclei are so big
- 148. Multiple ChoiceWhat is a benefit of nuclear fission?The ability to absorb energyThe ability to release tremendous amounts of energyThe ability to produce more energy than nuclear fusionThere are no beneficial aspects of nuclear fission
- 149. Multiple Choice
What type of decay is shown here
23892U ---> 23490Th + 42He.
alpha
beta
gamma
- 150. Multiple Choice
What type of nuclear decay is shown here
13756Ba →→ 13756Ba + γ rays
alpha
beta
gamma
- 151. Multiple Choice
Finish this equation
20983Bi--> _______ + 20581Tl
42He
0-1e
y
- 152. Multiple Choice
Identify the type of nuclear decay shown here
21483Bi → 0-1e + 21484Po
alpha
beta
gamma
- 153. Multiple Choice
finish the equation
22688Ra --> ____ + 22688Ra
42He
0-1e
y
- 154. Multiple ChoiceSolve this equation for alpha decay.
88226Ra = ___ + 24He86222Rn89226Ac84224Po88225Ra - 155. Multiple ChoiceSolve this equation for alpha decay.
85209At = ___ + 24He83205Bi86209Rn81207Tl85208At - 156. Multiple ChoiceSolve this equation for beta decay.
2760Co = ___ + -10e2556Mn2860Ni2358V2759Co - 157. Multiple ChoiceBalance the following equation:
146C --> 0-1e + ________145B146C147N42He - 158. Multiple ChoiceWhat element is the ?Ag-115Cd-115Pd-115Not Listed
- 159. Multiple ChoiceDuring beta decay, a nucleus ....gives up two protons and two neutrons.maintains the same number of protons and neutrons.loses a proton and gains a neutron.gains a proton and loses a neutron.
- 160. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 161. Multiple ChoiceThe type of radioactive particle that can be stopped by a sheet of paper is the ____.alpha particlebeta particlegamma rayuranium
- 162. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 163. Multiple ChoiceAfter the nucleus of a radioactive element undergoes changes, the element can transform into ...(a) a different isotope of the same element.(b) an entirely different element.Both (a) and (b)Neither (a) nor (b)
- 164. Multiple ChoiceHow many neutrons would Fe-56 have?56263033
- 165. Multiple Choice
What type of decay is shown here
23892U ---> 23490Th + 42He.
alpha
beta
gamma
- 166. Multiple Choice
Finish this equation
20983Bi--> _______ + 20581Tl
42He
0-1e
y
- 167. Multiple Choice
Identify the type of nuclear decay shown here
21483Bi → 0-1e + 21484Po
alpha
beta
gamma
- 168. Multiple Choice
This element is also called
Beryllium-4
Beryllium-5
Beryllium-9
Beryllium-13
- 169. Multiple Choice
How many protons and neutrons are in the nucleus of the atom shown?
9 protons and 19 neutrons
19 protons and 9 neutrons
10 protons and 9 neutrons
9 protons and 10 neutrons
- 170. Multiple Choice
Solve this equation for alpha decay.
2760Co = ___ + 24He
2556Mn
2860Ni
2358V
2759Co
- 171. Multiple Choice
The beta decay of Nitrogen-16 will produce
Nitrogen-14
Boron-12
Fluorine-20
Oxygen-16
- 172. Multiple Choice
The Alpha decay of Zinc-66 will produce
Gallium-67
Zinc-65
Nickel-58
Nickel-62
- 173. Multiple Choice
finish the equation
18173Ta --> ____ + 18174W
42He
0-1e
y
- 174. Multiple ChoiceHow many protons does P-30 have?30161215
- 175. Multiple ChoiceAccording to the isotopic notation for copper-63, how many neutrons are present in this type of atom?29346392
- 176. Multiple Choice
Which of the following is the correct isotope for the following ion: Protons = 82; Neutrons = 125; Electrons = 80
- 177. Multiple Choice
Determine the isotope notation:
Xenon-54
Xenon-130
Xenon-76
Xenon-184
- 178. Multiple Choice
Is this an atom or an ion:
atom
ion
- 179. Multiple Choice
Determine the correct nuclear symbol:
- 180. Multiple ChoiceHow many neutrons does the isotope of lithium have?8345
- 181. Multiple ChoiceHow many neutrons does an Oxygen-19 isotope have?1981110
- 182. Multiple Choice
Which isotope notation is correct for the atom shown?
Neon-22
Neon-10
Neon-12
Neon-0
- 183. Multiple ChoiceHas the symbolAlphaBetaGamma
- 184. Multiple ChoiceHas the symbolAlphaBetaGamma
- 185. Multiple ChoiceHas the symbolAlphaBetaGamma
- 186. Multiple ChoiceHas the lowest penetrating power. Can only penetrate 0.05 mm into the body and can be stopped by a piece of paper or clothing.AlphaBetaGamma
- 187. Multiple ChoiceHas the highest penetrating power. Can penetrate our body. Even several cm thick of lead or several meters thick of concrete cannot stop all of it.AlphaBetaGamma
- 188. Multiple ChoiceIn a correctly written symbol what would be located in the "A" position?number of neutronsatomic numbernumber of electronsmass number
- 189. Multiple ChoiceThis is an example of...Fission reactionFusion reactionDecomposition reactionDecay
- 190. Multiple ChoiceWhich process involves the joining of small nuclei?Beta decayAlpha decayNuclear fissionNuclear fusion
- 191. Multiple ChoiceThe process of nuclear change in an atom of radioactive material is called...nuclear decaynuclear massisotopesradon
- 192. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 193. Multiple ChoiceUranium-238 decays into Thorium-234 by emitting .........an alpha particlea beta particlegamma raysvisible light
- 194. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 195. Multiple ChoiceWhich type of nuclear radiation is being emitted here?Alphabetagammanone
- 196. Multiple ChoiceSolve this equation for alpha decay.
85209At = ___ + 24He83205Bi86209Rn81207Tl85208At - 197. Multiple ChoiceSolve this equation for beta decay.
614C = ___ + -10e410Be714N210He613C - 198. Multiple Choice
Gamma rays have
no mass
a huge mass
a small mass
an average mass
- 199. Multiple Choice
The nucleus is held together by the ___________________________force.
The Strong Nuclear Force
The Weak Nuclear Force
Electromagnetism
Gravity
- 200. Multiple Choice
During beta-particle emission, a neutron splits into a____________________.
proton and electron
neutron and electron
neutron and proton
- 201. Multiple Choice
In a correctly written symbol what would be located in the "Z" position?
number of neutrons
atomic number
number of electrons
mass number
- 202. Multiple Choice
How is the alpha particle written in a nuclear equation?
42He
24He
0-1e
00γ
- 203. Multiple ChoiceWhat do these symbols represent?alpha particlebeta particleneutrongamma ray
- 204. Multiple ChoiceHow many protons are in this atom?34610
- 205. Multiple ChoiceWhat do you call the energy required to prevent the protons in the nucleus from repelling?nuclear energybinding energyradioacitve energyelectromagnetic energy
- 206. Multiple ChoiceHow many neutrons are in this isotope of Uranium?23592327143
- 207. Multiple ChoiceHow are these isotopes different?Different atomic numbersDifferent number of protonsDifferent number of neutronsDifferent number of electrons
- 208. Multiple ChoiceWhat process is modeled by the equation?alpha decaybeta decayfissionfusion
- 209. Multiple ChoiceWhat process is modeled with this equation?alpha decaybeta decayfissionfusion
- 210. Multiple ChoiceWhat is the mass number of at isotope that has 20 protons, 21 neutrons and 18 electrons?18202141
- 211. Multiple ChoiceWhat is one problem with using nuclear fission as an energy source?finding radioactive elements that have longer half-livesfinding ways of storing radioactive wastesfinding compounds to cool heated waterfinding non-radioactive elements for reactors
- 212. Multiple ChoiceWhat type of nuclear equation is this?fusionfissionalphabeta
- 213. Multiple ChoiceWhat sort of shield will block gamma rays?skinpaperaluminumthick lead
- 214. Multiple ChoiceWhich nuclear process is shown in the picture?fissionfusionalpha decaybeta decay
- 215. Multiple ChoiceIn a neutral atom, the number of protons always equalsthe number of neutrons.the number of electrons.the mass number.the average atomic mass.
- 216. Multiple ChoiceWhy does an atom undergo beta decay?It has too many electrons.It has an atomic number greater than 83It has more neutrons than protonsIt has more protons than neutrons
- 217. Multiple ChoiceWhat happens to the atomic number during alpha decay?The atomic number decreases by 4The atomic number increases by 1The atomic number decreases by 2.The atomic number stays the same.
- 218. Multiple ChoiceWhat do these symbols represent?alpha particlebeta particleneutrongamma ray
- 219. Multiple ChoiceHow many protons are in this atom?34610
- 220. Multiple ChoiceWhat do you call the energy required to prevent the protons in the nucleus from repelling?nuclear energybinding energyradioacitve energyelectromagnetic energy
- 221. Multiple ChoiceHow many neutrons are in this isotope of Uranium?23592327143
- 222. Multiple ChoiceHow are these isotopes different?Different atomic numbersDifferent number of protonsDifferent number of neutronsDifferent number of electrons
- 223. Multiple ChoiceWhat process is modeled by the equation?alpha decaybeta decayfissionfusion
- 224. Multiple ChoiceWhat process is modeled with this equation?alpha decaybeta decayfissionfusion
- 225. Multiple ChoiceWhat is the mass number of at isotope that has 20 protons, 21 neutrons and 18 electrons?18202141
- 226. Multiple ChoiceWhat is one problem with using nuclear fission as an energy source?finding radioactive elements that have longer half-livesfinding ways of storing radioactive wastesfinding compounds to cool heated waterfinding non-radioactive elements for reactors
- 227. Multiple ChoiceWhat type of nuclear equation is this?fusionfissionalphabeta
- 228. Multiple ChoiceWhat sort of shield will block gamma rays?skinpaperaluminumthick lead
- 229. Multiple ChoiceWhich nuclear process is shown in the picture?fissionfusionalpha decaybeta decay
- 230. Multiple ChoiceIn a neutral atom, the number of protons always equalsthe number of neutrons.the number of electrons.the mass number.the average atomic mass.
- 231. Multiple ChoiceWhy does an atom undergo beta decay?It has too many electrons.It has an atomic number greater than 83It has more neutrons than protonsIt has more protons than neutrons
- 232. Multiple ChoiceWhat happens to the atomic number during alpha decay?The atomic number decreases by 4The atomic number increases by 1The atomic number decreases by 2.The atomic number stays the same.
- 233. Multiple ChoiceBalance the following equation:
146C --> 0-1e + ________145B146C147N42He - 234. Multiple ChoiceWhich type of nuclear radiation is being emitted here?Alphabetagammanone
- 235. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 236. Multiple ChoiceNegatively charged particles emitted from a nucleus at a high speed are ____.alpha particlegamma raysbeta particlesX rays
- 237. Multiple ChoiceHas the symbolAlphaBetaGamma
- 238. Multiple ChoiceHas the symbolAlphaBetaGamma
- 239. Multiple ChoiceHas the symbolAlphaBetaGamma
- 240. Multiple ChoiceWhat is the symbol for an alpha particle?42He0-1e0+1 e10n
- 241. Multiple ChoiceComplete the nuclear equation and determine the type of decay that is occurring in this reaction.alphabetagammanone
- 242. Multiple ChoiceWhat is the missing isotope that will balance the following nuclear equation?
94Be + 11H → _____ + 42He105B105Ne63Li63C - 243. Multiple ChoiceWhat particle completes this reaction?alpha particlebeta particlegamma particleneutron
- 244. Multiple ChoiceThis is the symbol for a(n)alpha particlebeta particlegamma particle
- 245. Multiple Choice23692U23693U23492Np23493Np
- 246. Multiple Choice
Complete the nuclear reaction
85209At = ___ + 24He
83205Bi
86209Rn
81207Tl
85208At
- 247. Multiple Choice
Complete the nuclear reaction
2760Co = ___ + -10e
2556Mn
2860Ni
2358V
2759Co
- 248. Multiple Choice
Complete the nuclear reaction
42He
0-1 e
00γ
178O
- 249. Multiple Choice
Complete the nuclear reaction
42He
0-1 e
00Y
178O
- 250. Multiple Choice42He0-1 e00Y178O
- 251. Multiple Choice
This is the correct equation for U-238 decay.
true
false
- 252. Multiple Choice
This is the correct equation for the decay of Ra.
true
false
- 253. Multiple Choice
Which of the following nuclear emissions is only energy?
Alpha particle
Beta particle
Gamma ray
- 254. Multiple ChoiceBalance the following equation:
146C --> 0-1e + ________145B146C147N42He - 255. Multiple Choice
What particle completes this reaction?
Alpha particle
Beta particle
Gamma ray
Neutron
- 256. Multiple Choice
Which is the missing isotope that will balance the following nuclear equation?
94Be + 11H → _____ + 42He
105B
105Ne
63Li
63C
- 257. Multiple Choice
Balance the following equation:
146C --> 0-1e + ________
145B
146C
147N
42He
- 258. Multiple Choice
Which is the symbol for an alpha particle?
42He
0-1e
0+1 e
10n
- 259. Multiple Choice
Which type of nuclear decay is this equation?
Alpha decay
Beta decay
Gamma radiation
- 260. Multiple Choice
Balance the nuclear equation.
23692U
23693U
23492Np
23493Np
- 261. Multiple Choice
This is the symbol for a(n)
Alpha particle
Beta particle
Gamma ray
- 262. Multiple Choice
The following is an example of which type of decay?
24395Am → 23993Np + 42He
Alpha decay
Beta decay
Gamma decay
- 263. Multiple Choice
The least penetrating form of radiation is
Alpha
Beta
Gamma
- 264. Multiple Choice
The most penetrating form of radiation is
Alpha
Beta
Gamma
- 265. Multiple Choice
An alpha particle is a(n)
Helium nucleus
Pure energy
Electron
- 266. Multiple Choice
Which of the following does the symbol -10e represent?
Alpha particle
Beta particle
Gamma ray
- 267. Multiple ChoiceBalance the following equation:
146C --> 0-1e + ________145B146C147N42He - 268. Multiple ChoiceWhich type of nuclear radiation is being emitted here?Alphabetagammanone
- 269. Multiple ChoiceA helium nucleus with two protons and two neutrons is called a(n) ____.alpha particleelectroscopebeta particlegamma ray
- 270. Multiple ChoiceNegatively charged particles emitted from a nucleus at a high speed are ____.alpha particlegamma raysbeta particlesX rays
- 271. Multiple ChoiceHas the symbolAlphaBetaGamma
- 272. Multiple ChoiceHas the symbolAlphaBetaGamma
- 273. Multiple ChoiceHas the symbolAlphaBetaGamma
- 274. Multiple ChoiceWhat is the symbol for an alpha particle?42He0-1e0+1 e10n
- 275. Multiple ChoiceComplete the nuclear equation and determine the type of decay that is occurring in this reaction.alphabetagammanone
- 276. Multiple ChoiceWhat is the missing isotope that will balance the following nuclear equation?
94Be + 11H → _____ + 42He105B105Ne63Li63C - 277. Multiple ChoiceWhat particle completes this reaction?alpha particlebeta particlegamma particleneutron
- 278. Multiple ChoiceThis is the symbol for a(n)alpha particlebeta particlegamma particle
- 279. Multiple Choice23692U23693U23492Np23493Np
- 280. Multiple Choice
Complete the nuclear reaction
85209At = ___ + 24He
83205Bi
86209Rn
81207Tl
85208At
- 281. Multiple Choice
Complete the nuclear reaction
2760Co = ___ + -10e
2556Mn
2860Ni
2358V
2759Co
- 282. Multiple Choice
Complete the nuclear reaction
42He
0-1 e
00γ
178O
- 283. Multiple Choice
Complete the nuclear reaction
42He
0-1 e
00Y
178O
- 284. Multiple Choice42He0-1 e00Y178O
- 285. Multiple Choice
This is the correct equation for U-238 decay.
true
false
- 286. Multiple Choice
This is the correct equation for the decay of Ra.
true
false
- 287. Multiple ChoiceWhich type of nuclear radiation is being emitted here?Alphabetagammanone
- 288. Multiple ChoiceIf Gadolinium-150 goes through alpha decay, the resulting element has a new atomic mass of _____.150148146
- 289. Multiple ChoiceNegatively charged particles emitted from a nucleus at a high speed are ____.alpha particlegamma raysbeta particlesX rays
- 290. Multiple ChoiceComplete the nuclear equation and determine the type of decay that is occurring in this reaction.alphabetagammanone
- 291. Multiple ChoiceSolve this equation for alpha decay.
20985At = ___ + 42He20583Bi20986Rn20781Tl20885At - 292. Multiple ChoiceSolve this equation for alpha decay.
22688Ra = ___ + 42He22286Rn22689Ac22484Po22588Ra - 293. Multiple ChoiceSolve this equation for beta decay.
6027Co = ___ + 0-1e5625Mn6028Ni5823V5927Co - 294. Multiple ChoiceSolve this equation for beta decay.
146C = ___ + 0-1e104Be147N102He136C - 295. Multiple ChoiceThe following is an example of what type of reaction?
24395Am → 23993Np + 42Healpha decaybeta decaygamma decay - 296. Multiple ChoiceWhat particle completes this reaction?alpha particlebeta particlegamma particleneutron
- 297. Multiple Choice
Isotopes of an element have a different number of...
Protons
Neutrons
Electrons
Mass
- 298. Multiple Choice
Potassium-39 has how many neutrons?
19
18
20
21
- 299. Multiple Choice
How do you calculate mass number?
Mass x percent
Protons + Electrons
Protons + Neutrons
Neutrons + Protons + Electrons
- 300. Multiple Choice
The three main types of nuclear radiation are alpha, beta, and gamma. Which of the following lists these types of radiation from highest penetrating power to lowest penetrating power?
alpha, gamma, beta
beta, alpha, gamma
beta, gamma, alpha
gamma, beta, alpha
- 301. Multiple Choice
In the symbol 20682Pb what does 82 stand for?
Mass number
Atomic number
Atomic mass
Number of protons
- 302. Multiple Choice
Balance the following nuclear decay equation:
146C --> 0-1e + ________
145B
146C
147N
42He
- 303. Multiple Choice
What does the symbol -10e represent
alpha particle
beta particle
gamma ray
the zero element
- 304. Multiple Choice
What is the half-life of an isotope if 125 g of a 500 g sample of the isotope remains after 3.0 years?
1.5 yrs
2.5 yrs
3.5 yrs
4.5 yrs
- 305. Multiple Choice
Select the correct isotope symbol for an atom with 12 protons and 13 neutrons
Mg-12
Mg-13
Mg-25
Mg-24.305
- 306. Multiple Choice
Select the correct isotope symbol for an atom with 76 protons and 114 neutrons
Osmium-114
Osmium-76
Osmium-190
Osmium-190.23
- 307. Multiple ChoiceIf 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.1.25mg1.25g10g10mg
- 308. Multiple ChoiceThe half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?3.0g0.25mg0.3g0.25g
- 309. Multiple ChoiceIf the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?1 half-life2 half-lives3 half-lives4 half-lives
- 310. Multiple ChoiceWhat is the half-life of iodine-131?32 days8 days16 days24 days
- 311. Multiple ChoiceAfter the third half-life, how much of the sample is left?1/21/31/161/8
- 312. Multiple ChoiceImagine you have 50,000 atoms of uranium-238. If U-238 has a half-life of 4.5 billion years, how many U-238 atoms will be left after 4.5 billion years?25,00050,00012,5000
- 313. Multiple ChoiceWhat type of decay is being illustrated in following picture?beta decayalpha decay
- 314. Multiple ChoiceYou have 100 grams of radioactive C-14. The half life of C-14 is 5730 years.
How many grams are left after 1 half life?100 grams25 grams2 grams50 grams - 315. Multiple Choice
The % of the parent isotope remaining after 1 Half Life.
50%
25%
12.5%
6.25%
- 316. Multiple Choice
The % of the parent isotope remaining after 2 Half Lives.
50%
25%
12.5%
6.25%
- 317. Multiple Choice
The diagram shows 32 atoms.
16 of the Red are parent isotopes
16 of the Green are daughter isotopes
How many half-lives have occurred?
0
1
2
3
- 318. Multiple Choice
The diagram shows 32 atoms
32 of the Red are the parent isotope
0 of the atoms are daughter isotopes
How many half-lives have occurred?
0
1
2
3
- 319. Multiple Choice
What is the Half life of this isotope?
5 seconds
10 seconds
15 seconds
20 seconds
- 320. Multiple Choice
What is the Half Life of this isotope?
3 days
5 days
8 days
10 days
- 321. Multiple Choice
After 22,800 years, approximately what percentage of the original carbon-14 remains?
15%
12.5%
6.25%
3.125%
- 322. Multiple ChoiceWhat is the atomic number?the number of protonsthe number of protons and neutronsthe number of neutronsthe number of protons and electrons
- 323. Multiple ChoiceWhat is the mass number defined as?the number of protonsthe number of protons and neutronsthe number of neutronsthe number of protons and electrons
- 324. Multiple ChoiceWhat is the atomic number of this atom?1347
- 325. Multiple Choice
What is the mass number of this atom?
1
3
4
7
- 326. Multiple Choice
What is the atomic number of Barium, Ba? (enlarge the periodic table)
20
38
56
88
- 327. Multiple Choice
How many protons are in a sodium atom, Na? (tap to enlarge the periodic table)
Sodium has 1 proton.
Sodium has 3 protons.
Sodium has 11 protons
- 328. Multiple Choice
Atoms of the same element which have a different number of neutrons are called _________________.
ions
isotopes
quarks
molecules
- 329. Multiple Choice
Which subatomic particle has a negative charge in the atom?
proton
neutron
electron
quark
- 330. Multiple Choice
How many neutrons does C-14 contain? (tap to enlarge the image)
6
7
14
8
- 331. Multiple Choice
How many neutrons does an atom of the isotope Neon-22 have? (tap to enlarge the image)
12
10
22
20
- 332. Multiple Choice
How many electrons are in an atom with an atomic number of 50?
5
8
50
2
- 333. Multiple Choice
ALL atoms of the same element have:
same number of proton
same number of nucleon
different number of neutron
different number of electron
- 334. Multiple ChoiceWhat do these isotopes of carbon all have in common?neutrons & mass numberatomic number and neutronsatomic number and electronsprotons, atomic number, and mass number
- 335. Multiple Choicewhich atom has 4 neutrons?Li-6Li-7Li-8they have the same # of neutrons
- 336. Multiple ChoiceWhat quantities vary between isotopes of an element?protons, electrons, and atomic massprotons, electrons, and atomic numberneutrons and electronsneutrons and atomic mass
- 337. Multiple ChoiceHow many neutrons in C-14?67148
- 338. Multiple ChoiceIf X is the symbol for an element, which of the following two symbols represent isotopes of the same element? I. 7735X II. 7733X III. 8137X IV. 8135 XI and IIIII and IVI and IVI and III
- 339. Multiple ChoiceHow many neutrons does the isotope below have? 89 36Kr533689125
- 340. Multiple ChoiceFour isotopes of lead include lead-204, lead-206, lead-207, and lead-208. The average atomic mass of lead is 207.2. Which isotope of lead is likely to be the most abundant.204206207208
- 341. Multiple ChoiceWhat is the number of protons that the element in this image contain?1471518
- 342. Multiple ChoiceElements can have the same number of protons?TrueFalse
- 343. Multiple ChoiceWhich subatomic particles contribute the most to the mass of an atom?Protons, Neutrons, ElectronsProtons onlyProtons and ElectronsProtons and Neutrons
- 344. Multiple ChoiceThe number of protons is equal tothe atomic numberthe number of neutronsthe energy levelsthe periodic table groups
- 345. Fill in the Blank
If an atom has 12 neutrons and 11 protons, what is its atomic mass?
- 346. Multiple ChoiceHow many neutrons does the isotope of lithium have?8345
- 347. Multiple ChoiceHow many protons does this isotope of titanium have?48222670
- 348. Multiple ChoiceIn a correctly written symbol what would be located in the "A" position?number of neutronsatomic numbernumber of electronsmass number
- 349. Multiple ChoiceAn isotope has three forms. 30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu. Average atomic mass will be closest to2 amu3 amu4 amu5 amu
- 350. Multiple ChoiceCalculate the average atomic mass of silver.106.38649amu111.91896amu107.8677amu121
- 351. Multiple ChoiceAn element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% abundant. What is the average atomic mass? What element is it?9.012, Beryllium12.011, Carbon6.941, Lithium10.812, Boron
- 352. Multiple ChoiceCompute the average atomic mass for silicon:27.97728.0928.976The average mass cannot be determined from provided information.
- 353. Multiple ChoiceOxygen has 8 protons. What is oxygen's atomic number?16815.9990
- 354. Multiple ChoiceHow many neutrons does the isotope of lithium have?8345
- 355. Multiple ChoiceHow many neutrons in C-14?67148
- 356. Multiple ChoiceIn a correctly written symbol what would be located in the "A" position?number of neutronsatomic numbernumber of electronsmass number
- 357. Multiple ChoiceWhat quantities vary between isotopes of an element?protons, electrons, and atomic massprotons, electrons, and atomic numberneutrons and electronsneutrons and atomic mass
- 358. Multiple ChoiceWhat do these isotopes of carbon all have in common?neutrons & mass numberatomic number and neutronsatomic number and electronsprotons, atomic number, and mass number
- 359. Multiple ChoiceAn atom is electrically neutral whenprotons and neutrons are the sameprotons and electrons are the sameneutrons and electrons are the sameneutrons balance the protons and electrons
- 360. Multiple Choice
Q.Isotopes must have the same number of protons but different numbers of ________
electron rings
charges
neutrons
electrons
- 361. Multiple Choice
How many neutrons are in an atom of Nitrogen-16?
9
7
16
20
- 362. Multiple Choice
Which statement is true?
The galaxies are moving toward us.
The galaxies are moving away from us.
The universe remains static or unchanged in motion.
None of the above
- 363. Multiple Choice
Which elements are most
abundant in the visible
universe?
Hydrogen and Carbon
Carbon and Helium
Hydrogen and Oxygen
Hydrogen and Helium
- 364. Multiple Choice
Most scientists believe the Big Bang Theory explains which of the following questions?
How our planets and moons formed
How our universe began
How the sun turns hydrogen into helium
How fast light travels through space
- 365. Multiple Choice
Which description is considered most accurate regarding what actually happened during the Big Bang?
Two galaxies collided causing an immense explosion as stars crashed into one another
All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.
All matter emerged from a massive black hole at the center of the universe.
Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.
- 366. Multiple ChoiceThe only elements in the universe were hydrogen and helium until:the big bang.humans came along.stars began doing fusion.the redshift was discovered.
- 367. Multiple ChoiceAfter the third half-life, how much of the sample is left?1/21/31/161/8
- 368. Multiple ChoiceIf 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.1.25mg1.25g10g10mg
- 369. Multiple ChoiceThe half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?3.0g0.25mg0.3g0.25g
- 370. Multiple ChoiceIf the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?1 half-life2 half-lives3 half-lives4 half-lives
- 371. Multiple ChoiceWhat is the half-life of iodine-131?32 days8 days16 days24 days
- 372. Multiple Choice
The % of the parent isotope remaining after 1 Half Life.
50%
25%
12.5%
6.25%
- 373. Multiple Choice
The % of the parent isotope remaining after 2 Half Lives.
50%
25%
12.5%
6.25%
- 374. Multiple Choice
The diagram shows 32 atoms
32 of the Red are the parent isotope
0 of the atoms are daughter isotopes
How many half-lives have occurred?
0
1
2
3
- 375. Multiple Choice
The diagram shows 32 atoms.
16 of the Red are parent isotopes
16 of the Green are daughter isotopes
How many half-lives have occurred?
0
1
2
3
- 376. Multiple Choice
What is the Half life of this isotope?
5 seconds
10 seconds
15 seconds
20 seconds
- 377. Multiple ChoiceWhen nuclei decay, massive amounts of __________ is released.energyjelloprotonsneutrons
- 378. Multiple ChoiceBarium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?0.25g2.5g25g80g
- 379. Multiple ChoiceIf 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.1.25mg1.25g10g10mg
- 380. Multiple ChoiceThe half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?3.0g0.25mg0.3g0.25g
- 381. Multiple ChoiceIf the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?1 half-life2 half-lives3 half-lives4 half-lives
- 382. Multiple ChoiceThe half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?100.0g50.0g12.5g8.5g
- 383. Multiple ChoiceAfter the third half-life, how much of the sample is left?1/21/31/161/8
- 384. Multiple ChoiceThe half life of iodine-131 is 8.040 days. What percentage of an iodine-131 sample will remain after 40.20 days?312.5%31.25%.3125%3.125%
- 385. Multiple ChoiceWhat is Half-life?The amount of time it takes for some of the nuclei in a sample of the isotope to decayThe amount of time it takes for half the electrons in a sample of the isotope to decayThe amount of time it takes for half the nuclei in a sample of the isotope to decaythe amount of time it takes to double the nuclei in a sample of the isotope to decay
- 386. Multiple ChoicePd-100 has a half-life of 3.6 days. If one had 620,310,740 atoms at the start, how many atoms would be present after 21.6 days?9.7x106 atoms remain97.0x106 atoms remain0.97x106 atoms remain9.7x105 atoms remain
- 387. Multiple ChoiceFermium-253 has a half-life of 0.334 seconds. A radioactive sample is considered to be completely decayed after 10 half-lives. How much time will elapse for this sample to be considered gone?0.334 seconds3.34 seconds1.77 seconds13.4 seconds
- 388. Multiple ChoiceRequires temperatures of millions of degrees?FissionFusion
- 389. Multiple ChoiceWhich of the following is true about nuclear fusion?It is easy to implement.It produces less energy than nuclear fission.It produces more energy than nuclear fission.It has the ability to occur easily in everyday life.
- 390. Multiple ChoiceThe splitting of a nucleus into smaller nuclei isfusionfissiondecaygamma radiation
- 391. Multiple ChoiceTakes two small nuclei and combines them into a larger nucleusfissionfusion
- 392. Multiple ChoiceThe splitting of a nucleus into smaller nuclei isfusionfissionhalf-lifegamma radiation
- 393. Multiple ChoiceHow do nuclear power-plants work?FusionHalf-lifeFissionFusion or fission
- 394. Multiple ChoiceThis is an example of...Fission reactionFusion reactionDecomposition reactionDecay
- 395. Multiple ChoiceWhere does fusion occur naturally?UnderwaterAll around usIn the radioactive wasteOn the sun
- 396. Multiple ChoiceWhich atoms combine together during fusion reaction on the sun?Helium and Hydrogen atomsHydrogen atomsHydrogen and Lithium atomsHydrogen and Carbon atoms
- 397. Multiple ChoiceAn example of an uncontrolled fission reaction is _______________Nuclear power plantsRadio active decayAtomic BombOn the surface of the sun
- 398. Multiple ChoiceNuclear fusion releases energy when:heavy ions fuse togethervery light nuclei fuse togetheruranium splits into two fragmentsuranium emits a neutron
- 399. Multiple Choice_________ happens naturally due to an unstable nucleus.fissionfusionradioactive decayK-capture
- 400. Multiple ChoiceOne disadvantage of nuclear energy is ___.it is a fossil fuelit leaves behind radioactive wasteit emits large amounts of pollution into the atmospherethere are no disadvantages
- 401. Multiple ChoiceWhich of these statements correctly describes how the chain reaction occurs in nuclear fission.Uranium releases electrons to create electricityWhen a nuclear fission reaction occurs, the electrons emitted can strike other nuclei in the sample, and cause them to splitWhen a nuclear fission reaction occurs, the neutrons emitted can strike other nuclei in the sample, and cause them to splitProtons and neutrons change to electrons because the nuclei are so big
- 402. Multiple ChoiceWhat is a benefit of nuclear fission?The ability to absorb energyThe ability to release tremendous amounts of energyThe ability to produce more energy than nuclear fusionThere are no beneficial aspects of nuclear fission
- 403. Multiple ChoiceThe major drawback to nuclear fission reactors is the difficulty of achieving safe disposal of radioactive waste products.truefalse
- 404. Multiple ChoiceVery high temperature and pressure is required for:FissionFusionRadioactive Decay
- 405. Multiple ChoiceWhat does it mean that fusion is a "chain reaction?"many steps or mini-reactions in the processlong chains of elements form in a row
- 406. Multiple ChoiceDo all stars make energy through fusion?YesNoJust our sunOnly large stars
- 407. Multiple ChoiceWhy do scientists most want to learn more about fusion?To win the Nobel prizeTo make energy for people to useTo destroy the worldTo know more about stars
- 408. Multiple ChoiceTakes two small nuclei and combines them into a larger nucleusfissionfusion
- 409. Multiple ChoiceThe splitting of a nucleus into smaller nuclei isfusionfissionhalf-lifegamma radiation
- 410. Multiple ChoiceHow do nuclear power-plants work?FusionHalf-lifeFissionFusion or fission
- 411. Multiple ChoiceComplete the nuclear equation and determine the type of decay that is occurring in this reaction.alphabetagammanone
- 412. Multiple ChoiceAlpha particles have a _____ charge.+20+4-1
- 413. Multiple ChoiceThe beta particle has a charge of ...........+1-10+2
- 414. Multiple ChoiceWhich type of radioactive decay is occurring in this equation?Alpha decaybeta decaygamma decaypositron emission
- 415. Multiple ChoiceThis is an example of...Fission reactionFusion reactionDecomposition reactionDecay
- 416. Multiple ChoiceWhere does fusion occur naturally?UnderwaterAll around usIn the radioactive wasteOn the sun
- 417. Multiple ChoiceWhich atoms combine together during fusion reaction on the sun?Helium and Hydrogen atomsHydrogen atomsHydrogen and Lithium atomsHydrogen and Carbon atoms
- 418. Multiple ChoiceAn example of an uncontrolled fission reaction is _______________Nuclear power plantsRadio active decayAtomic BombOn the surface of the sun
- 419. Multiple ChoiceIn order of most to least penetrating radiation we haveAlpha , Beta, GammaBeta , Gamma , AlphaGamma, Beta, AlphaGamma, Alpha, Beta
- 420. Multiple ChoiceWhich one of the following is a possible effect following ingestion of substantial amounts of alpha-emitting substances?ScarsLess risk of cancerSkin burnsNausea
- 421. Multiple ChoiceWhat metal gives off radiation?carboncobalturaniumtitanium
- 422. Multiple ChoiceWhat were the two names of the atomic bomb bombs used in WW2Little Girl,Dragon breathLittle boy,Fat manBig Women,TigerLittle boy,Fat Father
- 423. Multiple ChoiceIs radiation used to help people?TrueFalse
- 424. Multiple ChoiceRequires temperatures of millions of degrees?FissionFusion
- 425. Multiple ChoiceWhich of the following is true about nuclear fusion?It is easy to implement.It produces less energy than nuclear fission.It produces more energy than nuclear fission.It has the ability to occur easily in everyday life.
- 426. Multiple ChoiceThe splitting of a nucleus into smaller nuclei isfusionfissiondecaygamma radiation
- 427. Multiple ChoiceTakes two small nuclei and combines them into a larger nucleusfissionfusion
- 428. Multiple ChoiceThe splitting of a nucleus into smaller nuclei isfusionfissionhalf-lifegamma radiation
- 429. Multiple ChoiceHow do nuclear power-plants work?FusionHalf-lifeFissionFusion or fission
- 430. Multiple ChoiceWhere does fusion occur naturally?UnderwaterAll around usIn the radioactive wasteOn the sun
- 431. Multiple ChoiceAn example of an uncontrolled fission reaction is _______________Nuclear power plantsRadio active decayAtomic BombOn the surface of the sun
- 432. Multiple Choice_________ happens naturally due to an unstable nucleus.fissionfusionradioactive decayK-capture
- 433. Multiple ChoiceThe major drawback to nuclear fission reactors is the difficulty of achieving safe disposal of radioactive waste products.truefalse
- 434. Multiple ChoiceWhy do scientists most want to learn more about fusion?To win the Nobel prizeTo make energy for people to useTo destroy the worldTo know more about stars
- 435. Multiple Choice
The type of radioactive particle that can be stopped by a sheet of paper is the ____.
alpha particle
uranium
beta particle
gamma ray
- 436. Multiple Choice
The most penetrating type of radiation is the _______.
beta particle
gamma ray
uranium
alpha particle
- 437. Multiple Choice
One type of radioactive device that indicates the intensity of radiation with a clicking sound that increases in frequency as more radiation is present is a(n) ____.
bubble chamber
cloud chamber
electroscope
Geiger counter
- 438. Multiple Choice
Can be stopped by aluminum foil; has no mass and negative charge.
beta particle
alpha partcle
gamma ray
half-life
- 439. Multiple Choice
Powerful radiation that can cause biological damage.
beta particle
alpha particle
gamma ray
carbon dating
- 440. Multiple Choice
Using the decay of an isotope to find the age of a once-living object [fossil].
carbon dating
alpha particle
gamma ray
half-life
- 441. Multiple Choice
A helium nucleus; low energy.
gamma ray
carbon dating
half-life
alpha particle
- 442. Multiple Choice
Time necessary for 50% of a radioactive sample to decay.
carbon dating
half-life
alpha particle
gamma ray
- 443. Multiple Choice
Who was the first woman to win a Nobel Prize for her work with radioactivity?
Lise Meitner
Marie Curie
Jane Goodall
Judy Blume
- Answer choicesTagsAnswer choicesTags