Question 1

The symbol  is a symbol used for a(n)

Accepted Answer

A)  proton.
B)  positron.
C)  gamma ray.
D)  beta particle.
E)  alpha particle.F) A) and B)
G) A) and C)

Question 2

In the nuclear equation of a beta emitter

Accepted Answer

A)  the new nucleus contains 2 fewer protons.
B)  the new nucleus contains 2 more protons.
C)  the mass number of the new nucleus is 4 less than that of the original nucleus.
D)  the new nucleus contains 1 more proton.
E)  the new nucleus contains 1 less proton.F) None of the above
G) B) and D)

Question 3

The process by which a large nucleus breaks into smaller pieces, releasing large amounts of energy is called nuclear ________.

Accepted Answer

The answer of The process by which a large nucleus...

Question 4

The half-life of a radioisotope is

Accepted Answer

A)  one-half of the time it takes for the radioisotope to completely decay to a nonradioactive isotope.
B)  the time it takes for the radioisotope to become an isotope with one-half of the atomic weight of the original radioisotope.
C)  the time it takes for the radioisotope to become an isotope with one-half the atomic number of the original radioisotope.
D)  the time it takes for the radioisotope to lose one-half of its neutrons.
E)  the time it takes for one-half of the sample to decay.F) All of the above
G) C) and E)

Question 5

Tc →  Tc + ________

Accepted Answer

The answer of  Tc →  Tc + ________...

Question 6

A sample of cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 mCi/mL. If the patient undergoing the test needs a dose of 10. mCi, how much of the solution should be injected into the patient?

Accepted Answer

A)  45 mL
B)  .45 mL
C)  2.2 mL
D)  22 mL
E)  4.5 mLF) C) and D)
G) B) and E)

Question 7

Nuclear fusion does not occur naturally.

Accepted Answer

A) True 
 B)False

Question 8

If absorbed internally, alpha particle emitters are the most damaging because alpha particles

Accepted Answer

A)  have the largest charge.
B)  have the greatest energy.
C)  have the greatest mass.
D)  consist of high energy electrons.
E)  consist of pure energy.F) A) and B)
G) A) and C)

Question 9

The symbol is a symbol used for a(n)

Accepted Answer

A)  proton.
B)  neutron.
C)  gamma ray.
D)  beta particle.
E)  alpha particle.F) A) and B)
G) None of the above

Question 10

What is the nuclear symbol for a radioactive isotope of copper with a mass number of 60?

Accepted Answer

A)  
B)  
C)   29Cu{29}Cu29Cu 
D)  
E)   F) A) and C)
G) C) and D)

Question 11

Sodium-24 has a half-life of 15 hours. How many hours is three half-lives?

Accepted Answer

A)  60 hours
B)  45 hours
C)  30 hours
D)  15 hours
E)  7.5 hoursF) All of the above
G) B) and E)

Question 12

When an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a great amount of energy. This nuclear process is called

Accepted Answer

A)  fission.
B)  fusion.
C)  decomposition.
D)  chain reaction.
E)  ionization.F) None of the above
G) A) and E)

Question 13

One symbol for the β particle is  β. Another symbol for the same particle is ________.

Accepted Answer

The answer of One symbol for the β particle is...

Question 14

The radioisotope used as a diagnostic tool to measure thyroid function is ________.

Accepted Answer

The answer of The radioisotope used as a diagnostic tool...

Question 15

Which of the following is suitable as a minimum shielding for beta particles?

Accepted Answer

A)  air
B)  1 m of water
C)  gloves
D)  1 m of concrete
E)  1 cm of leadF) C) and D)
G) B) and E)

Question 16

Iodine-131 decays by beta decay to

Accepted Answer

A)  iodine-132.
B)  tellurium-131.
C)  iodine-130.
D)  bromine-131.
E)  xenon-131.F) D) and E)
G) B) and E)

Question 17

Sr → ________ +  e + energy

Accepted Answer

The answer of  Sr → ________ +  e...

Question 18

Medical radioisotopes used for diagnostic purposes typically have short half-lives.

Accepted Answer

A) True 
 B)False

Question 19

Nitrogen-17 is a beta emitter. What is the isotope produced in the radioactive decay?

Accepted Answer

A)  C
B)  B
C)  N
D)  F
E)  OF) B) and E)
G) C) and D)

Question 20

What is missing in the nuclear reaction shown below?  B +  He →  N + ________

Accepted Answer

A)  gamma radiation
B)  a positron
C)  a neutron
D)  an alpha particle
E)  a beta particleF) A) and E)
G) A) and D)

Exam 5: Nuclear Chemistry

A sample of cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 mCi/mL. If the patient undergoing the test needs a dose of 10. mCi, how much of the solution should be injected into the patient?

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Sr → ________ + e + energy

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Which of the following is suitable as a minimum shielding for beta particles?

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Nitrogen-17 is a beta emitter. What is the isotope produced in the radioactive decay?

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If absorbed internally, alpha particle emitters are the most damaging because alpha particles

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Medical radioisotopes used for diagnostic purposes typically have short half-lives.

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What is missing in the nuclear reaction shown below? B + He → N + ________

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Tc → Tc + ________

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Nuclear fusion does not occur naturally.

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What is the nuclear symbol for a radioactive isotope of copper with a mass number of 60?

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The half-life of a radioisotope is

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The radioisotope used as a diagnostic tool to measure thyroid function is ________.

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Iodine-131 decays by beta decay to

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Sodium-24 has a half-life of 15 hours. How many hours is three half-lives?

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The process by which a large nucleus breaks into smaller pieces, releasing large amounts of energy is called nuclear ________.

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The symbol is a symbol used for a(n)

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One symbol for the β particle is β. Another symbol for the same particle is ________.

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In the nuclear equation of a beta emitter

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The symbol is a symbol used for a(n)

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When an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a great amount of energy. This nuclear process is called

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