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- 1. Multiple Choice
What is the electrical charge of a proton?
positive
negative
neutral
all of the above
- 2. Multiple Choice
What is the electrical charge of a neutron?
positive
negative
netural
all of the above
- 3. Multiple Choice
What is the electrical charge of an electron?
positive
negative
neutral
all of the above
- 4. Multiple Choice
Where is the proton located?
nucleus
energy shells
electron cloud
the outside of an atom
- 5. Multiple Choice
Where is the neutron located?
nucleus
energy shells
electron cloud
the outside of an atom
- 6. Multiple Choice
Where is the electron located?
orbital
nucleus
in the inside of the atom
matter
- 7. Multiple Choice
What is the mass of a proton?
0 amu
1 amu
1.5 amu
2 amu
- 8. Multiple Choice
What is the mass of a neutron?
0 amu
1 amu
1.5 amu
2 amu
- 9. Multiple Choice
What is the mass of an electron?
0 amu
1 amu
1.5 amu
2 amu
- 10. Multiple Choice
True or False: The nucleus contains the mass of an atom.
True
False
Maybe
- 11. Multiple Choice
True or False: The electron cloud is the lightest part of an atom because it is made up mostly of empty space.
True
False
Maybe
- 12. Multiple Choice
Which of the following are found in the nucleus? Check all that apply.
proton
electron
neutron
all of the above
- 13. Multiple Choice
Neutrons = Mass Number + Atomic NumberNeutrons = Mass Number - Atomic NumberNeutrons = Atomic Number + ElectronsNeutrons = Atomic Number - Electrons - 14. Multiple ChoiceMass Number = Atomic Number + NeutronsMass Number = Atomic Number - NeutronsMass Number = Atomic Number + ElectronsMass Number = Atomic Number - Electrons
- 15. Multiple ChoiceElectrons that are inside the nucleusElectrons on the outermost energy levelElectrons that are closest to the nucleusElectrons that have a positive charge
- 16. Multiple ChoiceNumber of protonsNumber of neutronsNumber of electronsMass Number
- 17. Multiple ChoiceProtons and NeutronsProtons and ElectronsNeutrons and ElectronsNeutrons and Valence Electrons
- 18. Multiple ChoiceThe number of protonsThe number of neutronsThe Mass NumberThe number of valence electrons
- 19. Multiple ChoiceIt contains protonsIt contains neutronsIt contains electrons
- 20. Multiple Choice
What is the small central core of an atom called?
Nucleus
Orbital
Core
Electron
- 21. Multiple Choice
A(n) is the building block of matter.
nucleus
atom
proton
electron
- 22. Multiple Choice
A subatomic particle that has a positive charge is known as a(n)
electron
neutron
proton
isotope
- 23. Multiple Choice
Isotopes are atoms of the same element with the same number of protons and
a different number of electrons.
a different number of molecules.
a different number of neutrons.
the same number of neutrons.
- 24. Multiple Choice
How many neutrons does an atom of hydrogen contain?
3
1
0
2
- 25. Multiple Choice
Objects that are electrically neutral become when they lose electrons.
positive
negative
neutral
doubly charged
- 26. Multiple Choice
What did J.J. Thomson's experiment show?
The atom is like a uniform sphere.
Cathode rays are made up of electrons.
All atoms undergo radioactive decay.
Isotopes undergo radioactive decay.
- 27. Multiple Choice
What is the MOST important subatomic particle when it comes to identifying the name of an atom?
Electron
Proton
Nucleus
Neutron
- 28. Multiple Choice
The atomic number of sodium is 11 and its mass number is 23. It has
11 neutrons and 12 protons
12 protons and 11 electrons
11 electrons and 12 neutrons
12 electrons and 11 neutrons
- 29. Multiple Choice
The electrons present in the outermost shell are called
Valency electrons
Octet electrons
Duplet electrons
Valence electrons
- 30. Multiple Choicean atom with atomic number 6 would have how many protons6123cannot be determined
- 31. Multiple Choiceall matter is made of whatenergyatomselectronscompounds
- 32. Multiple ChoiceHow many electrons are in the element oxygen?71089
- 33. Multiple Choice"C" is the element symbol for which element?calciumcarbonchlorinecadmium
- 34. Multiple ChoiceWhat is the atomic number for an element with three protons?2136
- 35. Multiple ChoiceMost of the mass in an atom is concentrated in the...electronsnucleusprotonsempty space
- 36. Multiple ChoiceWhich particle has a similar mass to a proton?ElectronNeutronPhotonMarble
- 37. Multiple Choice
How many neutron are in the atom "K"?
7
2
39
20
- 38. Multiple ChoiceWhat is the atomic mass of "F"9181719
- 39. Multiple Choice
Dalton’s atomic theory successfully proved
Rutherford correct there is a nucleus
Thomson correct regarding electrons with a negative charge
Rutherford correct regarding protons with a positive charge
Democritus correct regarding all matter made of atoms
- 40. Multiple Choice
Which of the following statements about Rutherford’s model of atom are correct?
The nucleus is positively charged by protons
The nucleus is neutral from protons
The nucleus is negatively charged by electrons
There is no nucleus
- 41. Multiple Choice
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
13
10
14
16
- 42. Multiple Choice
The isotopes of a same element have:
same mass number.
same atomic number.
different mass number.
both b & c.
- 43. Multiple Choice
What is the atomic mass of Neon?
10
20.18
10.18
9.82
- 44. Multiple ChoiceHow many protons are in Beryllium?4952
- 45. Multiple ChoiceHow many neutrons are in a Gold atom?79196118275
- 46. Multiple ChoiceThe scientist responsible for "discovering" the nucleus is:BohrRutherfordSchroedingerEinstein
- 47. Multiple ChoiceHow did Rutherford discover the proton?Cathode tube ray experimentGold Foil ExperimentPlanetary ModelPlum Pudding Model
- 48. Multiple ChoiceWhat did Thomson discover?electronprotonneutronelectron cloud
- 49. Multiple Choice
He claimed that matter was made of small, hard particles that he called “atomos.”
Democritis
Dalton
Moseley
Einstein
- 50. Multiple Choice
99.9% of the atom's mass is found where?
nucleus
protons
electron cloud
neutrons
- Answer choicesTagsAnswer choicesTags