Question 1

What type of reaction is it when a neutron becomes a proton,and the result is a nucleus that changes from Z to Z+1?

Accepted Answer

The answer of What type of reaction is it when...

Question 2

Technetium-99m,a "metastable" nuclide of Tc is produced by the reaction
_____ $\rightarrow$ 99mTc + $\beta$
What is the starting nuclide?

Accepted Answer

The answer of Technetium-99m,a "metastable" nuclide of Tc is produced...

Question 3

What nuclide is formed when 90Sr undergoes  β\betaβ  decay?

Accepted Answer

A)  86Kr
B)  90Y
C)  94Zr
D)  89Sr
E)  90Rb

Question 4

Which of the following is most likely to undergo  α\alphaα  decay?

Accepted Answer

A)  24Na
B)  47K
C)  14C
D)  232Th
E)  3H

Question 5

A nuclide undergoes positron emission to form 22Ne.What is the nuclide?

Accepted Answer

A)  23Mg
B)  18O
C)  22Na
D)  22F
E)  23Na

Question 6

Which of the following nuclei is stable?

Accepted Answer

A)  120Sn
B)  213Fr
C)  38Cl
D)  24Na
E)  15O

Question 7

In the 238U decay series,there are 8  α\alphaα  particles and 6  β\betaβ  particles lost starting with  α\alphaα  emission from 238U.What is the final product?

Accepted Answer

A)  207Pb
B)  210Po
C)  210Bi
D)  208Pb
E)  206Pb

Question 8

Which of the following is likely to lie below the band of stability?

Accepted Answer

A)  O-15
B)  P-29
C)  Li-9
D)  Be-7
E)  C-14

Question 9

What is the element produced when 44Ti undergoes electron capture?

Accepted Answer

A)  Ar
B)  K
C)  Sc
D)  V
E)  Ca

Question 10

Cobalt-60,used in the radiation treatment of cancer,is produced by absorption of 2 neutrons and emission of a  β\betaβ particle.What is the starting nuclide?

Accepted Answer

A)  58Mn
B)  58Ni
C)  58Fe
D)  59Co
E)  59Fe

Question 11

Use the law of radioactive decay to determine the activity of a 2.0- μ\muμ g sample of Tc-99,t½ = 2.2 * 105 y.

Accepted Answer

A)  1.0 Ci
B)  1.0 * 10-6 Ci
C)  1.5 Ci
D)  3.3 *10-8 Ci
E)  3.3 *10-2 Ci

Question 12

When an  α\alphaα  particle is emitted,the atomic number

Accepted Answer

A)  increases by 4.
B)  decreases by 1.
C)  decreases by 2.
D)  decreases by 4.
E)  increases by 2.

Question 13

A sample of carbon from the Lascaux cave in France contained 12% of the original fraction carbon-14.Estimate the age of this sample (the half-life of carbon-14 is 5.73 * 103 year).

Accepted Answer

The answer of A sample of carbon from the Lascaux...

Question 14

What nuclide undergoes  α\alphaα  decay to produce the daughter nuclide polonium-218 (Z = 84) ?

Accepted Answer

A)  radon-222
B)  radium-226
C)  polonium-222
D)  polonium-214
E)  radon-226

Question 15

A 9.9-g sample of iodine-131 is stored for exactly 3 weeks.If the decay constant is 0.0861 day-1,what mass of the isotope remains?

Accepted Answer

A)  0.15 g
B)  7.6 g
C)  1.6 g
D)  2.6 g
E)  5.5 g

Question 16

A   \(\beta\ particle corresponds to

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 17

How many nucleons does boron-11 contain?

Accepted Answer

A)  6
B)  10
C)  5
D)  11
E)  16

Question 18

When an  α\alphaα  particle is emitted,the mass number

Accepted Answer

A)  decreases by 4.
B)  increases by 2.
C)  decreases by 2.
D)  decreases by 1.
E)  increases by 4.

Question 19

If U-238 undergoes  α\alphaα  emission,what other nuclide is produced?

Accepted Answer

A)  Np-236
B)  Ac-236
C)  Th-234
D)  U-234
E)  Pa-234

Question 20

Complete the nuclear reaction
97Mo + 2H $\rightarrow$  _____ + 2n

Accepted Answer

The answer of Complete the nuclear reaction
97Mo + 2H $\rightarrow$...

Exam 18: Nuclear Chemistry

What is the element produced when 44Ti undergoes electron capture?

Correct AnswerverifiedShow Answer

What type of reaction is it when a neutron becomes a proton,and the result is a nucleus that changes from Z to Z+1?

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Which of the following is most likely to undergo α\alphaα decay?

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Technetium-99m,a "metastable" nuclide of Tc is produced by the reaction _____ →\rightarrow→ 99mTc + β\betaβ What is the starting nuclide?

Correct AnswerverifiedShow Answer

A nuclide undergoes positron emission to form 22Ne.What is the nuclide?

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A \(\beta\ particle corresponds to

Correct AnswerverifiedShow Answer

When an α\alphaα particle is emitted,the mass number

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A 9.9-g sample of iodine-131 is stored for exactly 3 weeks.If the decay constant is 0.0861 day-1,what mass of the isotope remains?

Correct AnswerverifiedShow Answer

Complete the nuclear reaction 97Mo + 2H →\rightarrow→ _____ + 2n

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What nuclide undergoes α\alphaα decay to produce the daughter nuclide polonium-218 (Z = 84) ?

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Which of the following is likely to lie below the band of stability?

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When an α\alphaα particle is emitted,the atomic number

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Which of the following nuclei is stable?

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In the 238U decay series,there are 8 α\alphaα particles and 6 β\betaβ particles lost starting with α\alphaα emission from 238U.What is the final product?

Correct AnswerverifiedShow Answer

Use the law of radioactive decay to determine the activity of a 2.0- μ\muμ g sample of Tc-99,t½ = 2.2 * 105 y.

Correct AnswerverifiedShow Answer

How many nucleons does boron-11 contain?

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If U-238 undergoes α\alphaα emission,what other nuclide is produced?

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A sample of carbon from the Lascaux cave in France contained 12% of the original fraction carbon-14.Estimate the age of this sample (the half-life of carbon-14 is 5.73 * 103 year).

Correct AnswerverifiedShow Answer

What nuclide is formed when 90Sr undergoes β\betaβ decay?

Correct AnswerverifiedShow Answer

Cobalt-60,used in the radiation treatment of cancer,is produced by absorption of 2 neutrons and emission of a β\betaβ particle.What is the starting nuclide?

Correct AnswerverifiedShow Answer

What is the element produced when ⁴⁴Ti undergoes electron capture?

Correct Answer
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Correct Answer
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Which of the following is most likely to undergo $\alpha$ decay?

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Technetium-99m,a "metastable" nuclide of Tc is produced by the reaction _____ $\rightarrow$ ^99mTc + $\beta$ What is the starting nuclide?

Correct Answer
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A nuclide undergoes positron emission to form ²²Ne.What is the nuclide?

Correct Answer
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Correct Answer
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When an $\alpha$ particle is emitted,the mass number

Correct Answer
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A 9.9-g sample of iodine-131 is stored for exactly 3 weeks.If the decay constant is 0.0861 day^-1,what mass of the isotope remains?

Correct Answer
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Complete the nuclear reaction ⁹⁷Mo + ²H $\rightarrow$ _____ + 2n

Correct Answer
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What nuclide undergoes $\alpha$ decay to produce the daughter nuclide polonium-218 (Z = 84) ?

Correct Answer
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Correct Answer
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When an $\alpha$ particle is emitted,the atomic number

Correct Answer
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Correct Answer
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In the ²³⁸U decay series,there are 8 $\alpha$ particles and 6 $\beta$ particles lost starting with $\alpha$ emission from ²³⁸U.What is the final product?

Correct Answer
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Use the law of radioactive decay to determine the activity of a 2.0- $\mu$ g sample of Tc-99,t_½ = 2.2 * 10⁵ y.

Correct Answer
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Correct Answer
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If U-238 undergoes $\alpha$ emission,what other nuclide is produced?

Correct Answer
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A sample of carbon from the Lascaux cave in France contained 12% of the original fraction carbon-14.Estimate the age of this sample (the half-life of carbon-14 is 5.73 * 10³ year).

Correct Answer
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What nuclide is formed when ⁹⁰Sr undergoes $\beta$ decay?

Correct Answer
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Cobalt-60,used in the radiation treatment of cancer,is produced by absorption of 2 neutrons and emission of a $\beta$ particle.What is the starting nuclide?

Correct Answer
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