Question 1

The number of neutrons in a nucleus

Accepted Answer

A)  is less than the number of protons it contains. 
B)  is the same as the number of protons it contains. 
C)  is more than the number of protons it contains. 
D)  Any of the above, depending on the nucleus. 
A)  is less than the number of protons it contains. 
B)  is the same as the number of protons it contains. 
C)  is more than the number of protons it contains. 
D)  Any of the above, depending on the nucleus.

Question 2

The moderator in a nuclear reactor

Accepted Answer

A)  slows down neutrons emitted during fission. 
B)  reduces the production of plutonium. 
C)  reduces the production of radiation. 
D)  prevents explosions. 
A)  slows down neutrons emitted during fission. 
B)  reduces the production of plutonium. 
C)  reduces the production of radiation. 
D)  prevents explosions.

Question 3

The process of pair production cannot produce

Accepted Answer

A)  a proton and an antiproton. 
B)  a neutron and an antineutron. 
C)  a neutron and a neutrino. 
D)  an electron and a positron. 
A)  a proton and an antiproton. 
B)  a neutron and an antineutron. 
C)  a neutron and a neutrino. 
D)  an electron and a positron.

Question 4

Of the following particles, the one with the greatest mass is the

Accepted Answer

A)  electron. 
B)  proton. 
C)  neutron. 
D)  neutrino. 
A)  electron. 
B)  proton. 
C)  neutron. 
D)  neutrino.

Question 5

When a nucleus undergoes radioactive decay, its new mass number is

Accepted Answer

A)  always less than its original mass number. 
B)  always more than its original mass number. 
C)  never less than its original mass number. 
D)  never more than its original mass number. 
A)  always less than its original mass number. 
B)  always more than its original mass number. 
C)  never less than its original mass number. 
D)  never more than its original mass number.

Question 6

The particle that most resembles the proton is the

Accepted Answer

A)  positron. 
B)  neutron. 
C)  antiproton. 
D)  quark. 
A)  positron. 
B)  neutron. 
C)  antiproton. 
D)  quark.

Question 7

The nuclide that decays by electron capture to become is

Accepted Answer

A) 
  
B) 
  
C)  
  
D)  
  
A) 
  
B) 
  
C)  
  
D)

Question 8

A proton is annihilated when it interacts with which one or more of the following particles?

Accepted Answer

A)  An electron. 
B)  A neutron. 
C)  An antineutron. 
D)  An antiproton. 
A)  An electron. 
B)  A neutron. 
C)  An antineutron. 
D)  An antiproton.

Question 9

Which, if any, of the following elements have no radioactive isotopes?

Accepted Answer

A)  hydrogen. 
B)  potassium. 
C)  uranium. 
D)  All of these elements have radioactive isotopes. 
A)  hydrogen. 
B)  potassium. 
C)  uranium. 
D)  All of these elements have radioactive isotopes.

Question 10

The sievert is a unit of

Accepted Answer

A)  radioactivity. 
B)  half-life. 
C)  particle energy. 
D)  radiation dosage. 
A)  radioactivity. 
B)  half-life. 
C)  particle energy. 
D)  radiation dosage.

Question 11

The helium isotope   undergoes beta decay with the emission of an electron. The product of the decay is

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 12

The atoms of the isotopes of a given element have the same number of

Accepted Answer

A)  protons. 
B)  neutrons. 
C)  nucleons. 
D)  nuclides. 
A)  protons. 
B)  neutrons. 
C)  nucleons. 
D)  nuclides.

Question 13

The electromagnetic interaction is

Accepted Answer

A)  the fundamental interaction with the shortest range. 
B)  responsible for the structures of atoms, molecules, liquids, and solids. 
C)  responsible for holding nucleons together to form nuclei. 
D)  responsible for radioactive decays. 
A)  the fundamental interaction with the shortest range. 
B)  responsible for the structures of atoms, molecules, liquids, and solids. 
C)  responsible for holding nucleons together to form nuclei. 
D)  responsible for radioactive decays.

Question 14

A nuclear reactor itself does not produce

Accepted Answer

A)  electricity. 
B)  neutrons. 
C)  radiation. 
D)  plutonium. 
A)  electricity. 
B)  neutrons. 
C)  radiation. 
D)  plutonium.

Question 15

A molecule of heavy water contains

Accepted Answer

A)  two oxygen atoms instead of one. 
B)  three hydrogen atoms instead of two. 
C)  deuterium atoms instead of hydrogen atoms. 
D)  a deuterium atom instead of an oxygen atom. 
A)  two oxygen atoms instead of one. 
B)  three hydrogen atoms instead of two. 
C)  deuterium atoms instead of hydrogen atoms. 
D)  a deuterium atom instead of an oxygen atom.

Question 16

The product of the alpha decay of the uranium isotope   is

Accepted Answer

A)   
B)    
C)   
D)   
A)   
B)    
C)   
D)

Question 17

The chemical behavior of an atom is determined by its

Accepted Answer

A)  atomic number. 
B)  mass number. 
C)  binding energy. 
D)  number of isotopes. 
A)  atomic number. 
B)  mass number. 
C)  binding energy. 
D)  number of isotopes.

Question 18

The nucleus of an atom cannot be said to

Accepted Answer

A)  contain most of the atom's mass. 
B)  be small in size. 
C)  be electrically neutral. 
D)  deflect alpha particles that come near it. 
A)  contain most of the atom's mass. 
B)  be small in size. 
C)  be electrically neutral. 
D)  deflect alpha particles that come near it.

Question 19

The electromagnetic waves emitted by a nucleus are called

Accepted Answer

A)  ultraviolet rays. 
B)  X-rays. 
C)  gamma rays. 
D)  quarks. 
A)  ultraviolet rays. 
B)  X-rays. 
C)  gamma rays. 
D)  quarks.

Question 20

The radiation dosage due to cosmic rays is greatest

Accepted Answer

A)  in orbiting spacecraft. 
B)  in airplanes at high altitudes. 
C)  at sea level. 
D)  underground. 
A)  in orbiting spacecraft. 
B)  in airplanes at high altitudes. 
C)  at sea level. 
D)  underground.

The number of neutrons in a nucleus

The moderator in a nuclear reactor

The process of pair production cannot produce

Of the following particles, the one with the greatest mass is the

When a nucleus undergoes radioactive decay, its new mass number is

The particle that most resembles the proton is the

The nuclide that decays by electron capture to become is

A proton is annihilated when it interacts with which one or more of the following particles?

Which, if any, of the following elements have no radioactive isotopes?

The sievert is a unit of

The helium isotope undergoes beta decay with the emission of an electron. The product of the decay is

The atoms of the isotopes of a given element have the same number of

The electromagnetic interaction is

A nuclear reactor itself does not produce

A molecule of heavy water contains

The product of the alpha decay of the uranium isotope is

The chemical behavior of an atom is determined by its

The nucleus of an atom cannot be said to

The electromagnetic waves emitted by a nucleus are called

The radiation dosage due to cosmic rays is greatest

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Exam 8: The Nucleus

The number of neutrons in a nucleus

The moderator in a nuclear reactor

The process of pair production cannot produce

Of the following particles, the one with the greatest mass is the

When a nucleus undergoes radioactive decay, its new mass number is

The particle that most resembles the proton is the

The nuclide that decays by electron capture to become is

A proton is annihilated when it interacts with which one or more of the following particles?

Which, if any, of the following elements have no radioactive isotopes?

The sievert is a unit of

The helium isotope undergoes beta decay with the emission of an electron. The product of the decay is

The atoms of the isotopes of a given element have the same number of

The electromagnetic interaction is

A nuclear reactor itself does not produce

A molecule of heavy water contains

The product of the alpha decay of the uranium isotope is

The chemical behavior of an atom is determined by its

The nucleus of an atom cannot be said to

The electromagnetic waves emitted by a nucleus are called

The radiation dosage due to cosmic rays is greatest

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe Galaxies

Filters