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Write a complete, balanced equation to represent the formation of manganese-55 by the beta decay of another nuclide.

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An isotope with a high value of N/Z will tend to decay through


A) . decay.
B) . decay.
C) positron decay.
D) electron capture.
E) . decay.

F) C) and D)
G) A) and C)

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In living organisms, C-14 atoms disintegrate at a rate of 15.3 atoms per minute per gram of carbon. A charcoal sample from an archaeological site has a C-14 disintegration rate of 9.16 atoms per minute per gram of carbon. Estimate the age of this sample. The half-life of C-14 is 5730 years.


A) 3170 years
B) 3430 years
C) 4020 years
D) 4790 years
E) 6750 years

F) All of the above
G) A) and B)

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So-called "magic numbers" of particles are thought to convey extra stability to certain nuclei. These magic numbers refer to which of the following particles?


A) protons only
B) electrons only
C) positrons only
D) neutrons only
E) protons and neutrons

F) A) and B)
G) A) and C)

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The masses of a potassium-40 atom, a proton, and a neutron are 39.963999 amu, 1.007825 amu, and 1.008665 amu, respectively. Calculate to four significant figures a. the mass defect in amu, and b. the energy released in MeV/nucleon, in the formation of The masses of a potassium-40 atom, a proton, and a neutron are 39.963999 amu, 1.007825 amu, and 1.008665 amu, respectively. Calculate to four significant figures a. the mass defect in amu, and b. the energy released in MeV/nucleon, in the formation of from the appropriate number of protons and neutrons. from the appropriate number of protons and neutrons.

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a. 0.3666 ...

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Select the nuclide that completes the following nuclear reaction. Select the nuclide that completes the following nuclear reaction. A) B) C) D) E)


A) Select the nuclide that completes the following nuclear reaction. A) B) C) D) E)
B) Select the nuclide that completes the following nuclear reaction. A) B) C) D) E)
C) Select the nuclide that completes the following nuclear reaction. A) B) C) D) E)
D) Select the nuclide that completes the following nuclear reaction. A) B) C) D) E)
E) Select the nuclide that completes the following nuclear reaction. A) B) C) D) E)

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

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Briefly, explain the relationship between the rad and the rem as units of radiation dosage.

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The rad (radiation absorbed dose) measur...

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An 85-kg person exposed to barium-141 receives 2.5 × 105 particles, each with an energy of 5.2 × 10-13 J. How many rads does the person receive?


A) 2.4 × 10-20
B) 1.5 × 10-7
C) 1.8 × 10-16
D) 6.1 × 10-15
E) none of the above

F) A) and B)
G) B) and D)

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Write a complete, balanced equation to represent the beta decay of thallium-207.

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The radioisotope The radioisotope will decay through A) .<font face= symbol ></font> decay. B) .<font face= symbol ></font> decay. C) .<font face= symbol ></font> decay. D) electron capture. E) spontaneous fission. will decay through


A) . decay.
B) . decay.
C) . decay.
D) electron capture.
E) spontaneous fission.

F) B) and E)
G) B) and D)

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It is believed that two carbon-12 nuclei can react in the core of a supergiant star to form sodium-23 and hydrogen-1. Calculate the energy released from this reaction for each mole of hydrogen formed. The masses of carbon-12, sodium-23, and hydrogen-1 are 12.0000 amu, 22.989767 amu, and 1.007825, respectively. It is believed that two carbon-12 nuclei can react in the core of a supergiant star to form sodium-23 and hydrogen-1. Calculate the energy released from this reaction for each mole of hydrogen formed. The masses of carbon-12, sodium-23, and hydrogen-1 are 12.0000 amu, 22.989767 amu, and 1.007825, respectively. A) 2.16 × 10<sup>14 </sup>kJ B) 2.16 × 10<sup>11 </sup>kJ C) 2.16 × 10<sup>8 </sup>kJ D) 2.16 × 10<sup>5 </sup>kJ E) none of the above


A) 2.16 × 1014 kJ
B) 2.16 × 1011 kJ
C) 2.16 × 108 kJ
D) 2.16 × 105 kJ
E) none of the above

F) A) and E)
G) A) and C)

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The nuclide Pb-210 undergoes three successive decays (beta, alpha, and beta, respectively) to form a stable nuclide. What are the three nuclides which form from Pb-210 in this decay series?


A) Tl-210, Au-206, Pt-206
B) Bi-210, Tl-206, Pb-206
C) Pb-209, Hg-205, Hg-204
D) Bi-210, Pb-206, Bi-206
E) none of the above

F) A) and E)
G) A) and D)

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Which one of the following equations correctly represents positron decay of Which one of the following equations correctly represents positron decay of ? A) B) C) D) E) ?


A) Which one of the following equations correctly represents positron decay of ? A) B) C) D) E)
B) Which one of the following equations correctly represents positron decay of ? A) B) C) D) E)
C) Which one of the following equations correctly represents positron decay of ? A) B) C) D) E)
D) Which one of the following equations correctly represents positron decay of ? A) B) C) D) E)
E) Which one of the following equations correctly represents positron decay of ? A) B) C) D) E)

F) B) and D)
G) A) and D)

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Identify the missing species in the following nuclear transmutation. Identify the missing species in the following nuclear transmutation. A) B) C) D) E)


A) Identify the missing species in the following nuclear transmutation. A) B) C) D) E)
B) Identify the missing species in the following nuclear transmutation. A) B) C) D) E)
C) Identify the missing species in the following nuclear transmutation. A) B) C) D) E)
D) Identify the missing species in the following nuclear transmutation. A) B) C) D) E)
E) Identify the missing species in the following nuclear transmutation. A) B) C) D) E)

F) A) and B)
G) A) and D)

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