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1 | |
An atom of 206Pb has |
| | A) | 82 protons, 124 neutrons, and 82 electrons. |
| | B) | 124 protons, 82 neutrons, and 82 electrons. |
| | C) | 124 protons, 82 neutrons, and 124 electrons. |
| | D) | 82 protons, 82 neutrons, 124 electrons. |
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2 | |
Select the nuclide that completes the following nuclear reaction: 64Cu ----> +b + ? |
| | A) | 63Zn |
| | B) | 63Ni |
| | C) | 64Zn |
| | D) | 64Ni |
| | E) | 63Cu |
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3 | |
Which of the following isotopes is least likely to be stable? |
| | A) | 40Ca |
| | B) | 32S |
| | C) | 30Al |
| | D) | 55Mn |
| | E) | 119Sn |
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4 | |
What is the total binding energy of 12C? [12C atomic mass = 12.000 amu; mass of proton = 1.007825 amu; mass of neutron = 1.008665 amu; 1 kg = 6.022 x 1012amu; 1 J = 1 kg.m/s2]? |
| | A) | 1.80 x 10-9 J |
| | B) | 1.48 x 10-11 J |
| | C) | 3.60 x 10-9 J |
| | D) | 8.91 x 1015 J |
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5 | |
If 30% of a certain radioisotope decays in 5.0 years, what is the half-life of the isotope? |
| | A) | 10.0 yr |
| | B) | 9.7 yr |
| | C) | 5.4 yr |
| | D) | 5.0 yr |
| | E) | 2.4 yr |
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6 | |
The half-life of Sr-90 is 29 years. What fraction of the atoms in a sample would remain after 100 years? |
| | A) | 0.092 |
| | B) | 0.166 |
| | C) | 0.062 |
| | D) | 0.024 |
| | E) | 10.9 |
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7 | |
When an aluminum-27 atom is bombarded with an alpha particle, a neutron and an isotope of phosphorus is produced. What is the mass number of the isotope? |
| | A) | 28 |
| | B) | 29 |
| | C) | 30 |
| | D) | 31 |
| | E) | 32 |
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8 | |
Complete the following nuclear equation: 9Be(p,a)___. |
| | A) | 9B |
| | B) | 10B |
| | C) | 4Li |
| | D) | 6Li |
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9 | |
Which of the following is the least penetrating of the three types of nuclear radiation? |
| | A) | alpha |
| | B) | beta |
| | C) | gamma |
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10 | |
Gamma-rays and X-rays cause radiation damage when they interact with matter by |
| | A) | removing electrons. |
| | B) | forming radicals. |
| | C) | inducing other nuclear reactions. |
| | D) | A and B. |
| | E) | A and C. |
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2002 McGraw-Hill Higher Education