Question 1

What is the balanced nuclear equation for the  β\betaβ  emission of the radioisotope strontium-90?

Accepted Answer

A)     →\rightarrow→  + 
B)     →\rightarrow→  + 
C)     →\rightarrow→  + 
D)    +   →\rightarrow→ 
E)    +   →\rightarrow→  F) C) and D)
G) B) and E)

Question 2

A nuclear power plant utilizes the tremendous amount of energy produced by fission of the uranium-235 nucleus to heat water to steam, which powers a generator to produce electricity.

Accepted Answer

A) True 
 B)False

Question 3

An alpha particle is a high-energy particle that contains

Accepted Answer

A)  one proton and one neutron.
B)  two protons and two neutrons.
C)  one electron.
D)  one proton.E) All of the above
F) A) and D)

Question 4

One rem is equivalent to 100 Sv.

Accepted Answer

A) True 
 B)False

Question 5

A microcurie of radioactivity is larger than a Becquerel of radioactivity.

Accepted Answer

A) True 
 B)False

Question 6

Which nuclear equation is an example of  α\alphaα decay?

Accepted Answer

A)   
B)   
C)   
D)   
E)    F) B) and E)
G) All of the above

Question 7

Which nuclear equation is an example of  β\betaβ decay?

Accepted Answer

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

Question 8

Which unit of radioactivity is equivalent to 3.7 × 1010 disintegrations/second?

Accepted Answer

A)  1 Ci
B)  1 mCi
C)  1  μ\muμ Ci
D)  1 Bq E) C) and D)
F) A) and B)

Question 9

The LD50 of a substance is the lethal dose that kills _____ of a population.

Accepted Answer

Question 10

Phosphorous-32 is used for organ imaging. How many neutrons are present in this radioisotope?

Accepted Answer

A)  15
B)  17
C)  32
D)  47E) A) and D)
F) None of the above

Question 11

Positron emission tomography (PET)scans use radioisotopes that decay by positron emission. Once formed, a positron combines with an electron to form _____$\gamma$ray(s), which create a scan of an organ.

Accepted Answer

The answer of Positron emission tomography (PET)scans use radioisotopes that...

Question 12

The rad is the amount of radiation that also factors in its energy and potential to damage tissue.

Accepted Answer

A) True 
 B)False

Question 13

Which amount of radioactivity is equivalent to 3.7 × 105 mCi?

Accepted Answer

A)  3.7 × 103 Ci
B)  3.7 × 102  μ\muμ Ci
C)  3.7 × 108  μ\muμ Ci
D)  3.7 × 1014  μ\muμ Ci E) All of the above
F) None of the above

Question 14

The balanced nuclear equation for the decay of neon-31 by $\beta$ decay is  .

Accepted Answer

A) True 
 B)False

Question 15

Hydrogen-3 is a radioactive isotope of hydrogen. When hydrogen-3 undergoes beta decay, helium-3 is formed.

Accepted Answer

A) True 
 B)False

Question 16

Which isotope symbol for bismuth is correct?

Accepted Answer

A)   
B)   
C)   
D)   E) A) and B)
F) C) and D)

Question 17

If the half-life of phosphorus-32 is 14.3 days, how much of a 200. mg sample of phosphorus-32 remains after 71.5 days?

Accepted Answer

A)  100. mg
B)  50. mg
C)  12.5 mg
D)  6.25 mgE) B) and C)
F) All of the above

Question 18

Rb-84 is used to monitor cardiac output and has a half life of 33 days. It would take approximately 165 days for a 1.000 mg sample of Rb-84 to decay to 0.063 mg.

Accepted Answer

A) True 
 B)False

Question 19

A gamma ray has twice the mass of an alpha particle.

Accepted Answer

A) True 
 B)False

Question 20

Which type of radiation has the largest mass?

Accepted Answer

A)  An alpha particle
B)  A gamma ray
C)  A positron
D)  A beta particleE) B) and C)
F) All of the above

Exam 10: Nuclear Chemistry

The balanced nuclear equation for the decay of neon-31 by β\betaβ decay is .

Correct AnswerverifiedShow Answer

Which isotope symbol for bismuth is correct?

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The LD50 of a substance is the lethal dose that kills _____ of a population.

Correct AnswerverifiedShow Answer

Which unit of radioactivity is equivalent to 3.7 × 1010 disintegrations/second?

Correct AnswerverifiedShow Answer

Rb-84 is used to monitor cardiac output and has a half life of 33 days. It would take approximately 165 days for a 1.000 mg sample of Rb-84 to decay to 0.063 mg.

Correct AnswerverifiedShow Answer

Which nuclear equation is an example of α\alphaα decay?

Correct AnswerverifiedShow Answer

The rad is the amount of radiation that also factors in its energy and potential to damage tissue.

Correct AnswerverifiedShow Answer

An alpha particle is a high-energy particle that contains

Correct AnswerverifiedShow Answer

What is the balanced nuclear equation for the β\betaβ emission of the radioisotope strontium-90?

Correct AnswerverifiedShow Answer

Which type of radiation has the largest mass?

Correct AnswerverifiedShow Answer

One rem is equivalent to 100 Sv.

Correct AnswerverifiedShow Answer

A nuclear power plant utilizes the tremendous amount of energy produced by fission of the uranium-235 nucleus to heat water to steam, which powers a generator to produce electricity.

Correct AnswerverifiedShow Answer

Positron emission tomography (PET)scans use radioisotopes that decay by positron emission. Once formed, a positron combines with an electron to form _____ γ\gammaγ ray(s), which create a scan of an organ.

Correct AnswerverifiedShow Answer

A gamma ray has twice the mass of an alpha particle.

Correct AnswerverifiedShow Answer

If the half-life of phosphorus-32 is 14.3 days, how much of a 200. mg sample of phosphorus-32 remains after 71.5 days?

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Which nuclear equation is an example of β\betaβ decay?

Correct AnswerverifiedShow Answer

Hydrogen-3 is a radioactive isotope of hydrogen. When hydrogen-3 undergoes beta decay, helium-3 is formed.

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Phosphorous-32 is used for organ imaging. How many neutrons are present in this radioisotope?

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A microcurie of radioactivity is larger than a Becquerel of radioactivity.

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Which amount of radioactivity is equivalent to 3.7 × 105 mCi?

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The balanced nuclear equation for the decay of neon-31 by $\beta$ decay is $The balanced nuclear equation for the decay of neon-31 by \beta decay is .$ .

Correct Answer
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The LD₅₀ of a substance is the lethal dose that kills _____ of a population.

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Which unit of radioactivity is equivalent to 3.7 × 10¹⁰ disintegrations/second?

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Which nuclear equation is an example of $\alpha$ decay?

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What is the balanced nuclear equation for the $\beta$ emission of the radioisotope strontium-90?

Correct Answer
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Positron emission tomography (PET)scans use radioisotopes that decay by positron emission. Once formed, a positron combines with an electron to form _____ $\gamma$ ray(s), which create a scan of an organ.

Correct Answer
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Which nuclear equation is an example of $\beta$ decay?

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Which amount of radioactivity is equivalent to 3.7 × 10⁵ mCi?

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