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Chapter 23 - Chapter 23 Nuclear Chemistry 1 Alpha particles...

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Page 391 Chapter 23: Nuclear Chemistry 1. Alpha particles are identical to A) protons. D) helium nuclei. B) helium atoms. E) electrons. C) hydrogen atoms. Ans: D Category: Easy Section: 23.1 2. Beta particles are identical to 3. How many neutrons and protons (nucleons) does an atom with the symbol 33 16 S have? 4. A radioisotope decays to give an alpha particle and Pb-208. What was the original element? 5. As a result of beta decay, the product nucleus is A) one atomic number lower than the original element. B) two atomic numbers higher than the original element. C) one atomic number higher than the original element. D) two atomic numbers lower than the original element. E) four atomic numbers lower than the original element. Ans: C Category: Medium Section: 23.1 6. When atoms of beryllium-9 are bombarded with alpha particles, neutrons are produced. What new isotope is also formed? 4 2 He + 9 4 Be 1 0 n + _____
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Chapter 23: Nuclear Chemistry Page 392 7. When atoms of aluminum-27 are bombarded with alpha particles, a neutron and an element are produced. The particular isotope formed is 4 2 He + 27 13 Al 1 0 n + ____ 8. What is the missing symbol in this plutonium fission reaction? 239 94 Pu + 1 0 n ______ + 97 38 Sr + 3 1 0 n 9. Predict the other product of the following nuclear transformation. 6 3 Li + 1 0 n ____ + 4 2 He A) 6 2 He B) 2 1 H C) 3 1 H D) 0 1 + β E) 5 1 H Ans: C Category: Medium Section: 23.1 10. Radium-226 decays by alpha emission. What is its decay product? A) 228 87 Fr B) 222 86 Rn C) 230 90 Th D) 226 89 Ac E) 224 84 Po Ans: B Category: Medium Section: 23.1 11. Sulfur-35 decays by beta emission. The decay product is 12. In the 232 90 Th decay series there are six radioisotopes that decay by alpha emission, including Th-232 itself, and four radioisotopes that decay by beta emission. The final product of this series is a stable isotope. The symbol for this product is
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Chapter 23: Nuclear Chemistry Page 393
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