1. Chapter 21 Nuclear Chemistry
Chemistry, The Central Science, 11th edition
Theodore L. Brown; H. Eugene LeMay, Jr.;
Bruce E. Bursten and Catherine J. Murphy
Chapter 21 Nuclear Chemistry
Donna Narsavage Heald
Siena College
Loudonville, NY
 2009, Prentice Hall

2. The radioactive decay of Ra to Rn occurs with:
226Ra Rn
Loss of a neutron.
Gain of a proton.
Loss of electrons.
Loss of an alpha particle.
Gain of a positron.

3. The radioactive decay of Ra to Rn occurs with:
226Ra Rn
Loss of a neutron.
Gain of a proton.
Loss of electrons.
Loss of an alpha particle.
Gain of a positron.

4. Which nuclide is “doubly magic”—contains a magic number of protons and neutrons?
Magic numbers = 2, 8, 20, 28, 50, 82 2H
16O
40Ca
28Si
59Ni

5. Which nuclide is “doubly magic”—contains a magic number of protons and neutrons?
Magic numbers = 2, 8, 20, 28, 50, 82 2H
16O
40Ca
28Si
59Ni

6. Which nuclide(s) would you expect to be radioactive?
118I Ce Pb Ac
140Ce and 206Pb
118I and 140Ce
206Pb and 227Ac
140Ce and 227Ac
118I and 227Ac

7. Which nuclide(s) would you expect to be radioactive?
118I Ce Pb Ac
140Ce and 206Pb
118I and 140Ce
206Pb and 227Ac
140Ce and 227Ac
118I and 227Ac

8. How would you classify the reaction shown below?
Radioactive decay
Nuclear fission
Nuclear fusion
Nuclear transmutation
None of the above

9. How would you classify the reaction shown below?
Radioactive decay
Nuclear fission
Nuclear fusion
Nuclear transmutation
None of the above

10. Oxygen-15 is used as a radioactive tracer in medical imaging and has a half-life of 2.0 min. If the initial concentration of 15O is 16 mM, how long will it take for the concentration to be reduced to 1 mM?
4 min
6 min
8 min
10 min
12 min

11. Oxygen-15 is used as a radioactive tracer in medical imaging and has a half-life of 2.0 min. If the initial concentration of 15O is 16 mM, how long will it take for the concentration to be reduced to 1 mM?
4 min
6 min
8 min
10 min
12 min