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- Multiple ChoicePlease save your changes before editing any questions.Which type of radiation has the greatest penetrating power?AlphaBetaGammaMicrowaves
- Multiple ChoicePlease save your changes before editing any questions.The nuclear process occurring at a nuclear power plant.Nuclear fusionNuclear fissionCombustionMultiplication
- Multiple ChoicePlease save your changes before editing any questions.The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient how much remains after 18 hours?33.0 mg12.5 mg.33 mg15.8 mg
- Multiple ChoicePlease save your changes before editing any questions.Why 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
- Multiple ChoicePlease save your changes before editing any questions.What 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.
- Multiple ChoicePlease save your changes before editing any questions.
Arrange in order of increasing ability to penetrate matter.
Beta, gamma, alpha
Alpha, gamma, beta
Gamma, beta, alpha
Alpha, beta, gamma
- Multiple ChoicePlease save your changes before editing any questions.During fission, some of the nuclear mass is converted intoenergyheavier nucleicritical massprotons
- Multiple ChoicePlease save your changes before editing any questions.Balance the following equation:
146C --> 0-1e + ________145B146C147N42He - Multiple ChoicePlease save your changes before editing any questions.
In the symbol 167N what the 7 stand for?
Mass number
Atomic number
Atomic mass
Number of neutrons
- Multiple ChoicePlease save your changes before editing any questions.The half life of Thorium-234 is 24 days. What fraction of the element remains after 96 days1/21/41/81/16
- Multiple ChoicePlease save your changes before editing any questions.Complete the nuclear equation and determine the type of decay that is occurring in this reaction.alphabetagammanone
- Multiple ChoicePlease save your changes before editing any questions.If we start off with element 24X50 after an alpha decay we get another element Y that looks like22Y5022Y4620Y4826Y54
- Multiple ChoicePlease save your changes before editing any questions.Alpha particles have a _____ charge.+20+1-1
- Multiple ChoicePlease save your changes before editing any questions.Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.FusionFissionTracingDecay
- Multiple ChoicePlease save your changes before editing any questions.Which produces more energy--nuclear fission or nuclear fusion?FusionFissionThey produce the same amountIt depends on the elements used
- Multiple ChoicePlease save your changes before editing any questions.Barium-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
- Multiple ChoicePlease save your changes before editing any questions.Carbon-12 has 98.2% abundance, carbon-13 has 1.7% abundance, and carbon-14 has 0.1% abundance. Which isotope contributes most to the average atomic mass?Carbon-12Carbon-13Carbon-14They all contribute equally
- Multiple ChoicePlease save your changes before editing any questions.What is the half-life of an isotope if after 20.0 days you have 4.0 grams remaining of a 64.0 grams sample?1.25 days5.0 days0.000305 days4.25 days
- Multiple ChoicePlease save your changes before editing any questions.What is the missing isotope that will balance the following nuclear equation?
94Be + 11H → _____ + 42He105B105Ne63Li63C - Multiple ChoicePlease save your changes before editing any questions.
The force that holds the protons and neutrons together in the nucleus of an atom is called __________.
Binding force
magnetic force
centripetal force
electrostatic force
- Multiple ChoicePlease save your changes before editing any questions.
The half-life of a radioactive isotope is 20.0 minutes. What is the total amount of a 1.00-gram sample of this isotope remaining after 1.00 hour?
0.500g
0.333g
0.250g
0.125g