Nuclear Chemistry Worksheet

Nuclear Chemistry Worksheet - Ne e Na 22 10 1 22 11 →...

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For chemistry help, visit www.chemfiesta.com ©2003 Cavalcade Publishing – All Rights Reserved Nuclear Chemistry Worksheet Using your knowledge of nuclear chemistry, write the equations for the following processes: 1) The alpha decay of radon-198 2) The beta decay of uranium-237 3) Positron emission from silicon-26 4) Sodium-22 undergoes electron capture 5) What is the difference between nuclear fusion and nuclear fission? 6) What is a “mass defect” and why is it important? 7) Name three uses for nuclear reactions.
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For chemistry help, visit www.chemfiesta.com ©2003 Cavalcade Publishing – All Rights Reserved Nuclear Chemistry Worksheet – Solutions Using your knowledge of nuclear chemistry, write the equations for the following processes: 1) The alpha decay of radon-198 Po He Rn 194 84 4 2 198 86 + 2) The beta decay of uranium-237 Np e U 237 93 0 1 237 92 + - 3) Positron emission from silicon-26 e Al Si 0 1 26 13 26 14 + + 4) Sodium-22 undergoes electron capture
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Unformatted text preview: Ne e Na 22 10 1 22 11 → +-5) What is the difference between nuclear fusion and nuclear fission? In nuclear fusion, small nuclei are combined to form a larger nucleus – this process releases a very large amount of energy, and is the main source of energy in the sun. In nuclear fission, large nuclei break apart to form smaller ones, releasing a large amount of energy. Fission is used in nuclear power plants to generate energy. 6) What is a “mass defect” and why is it important? “Mass defect” refers to the difference between the mass of the nucleons (protons + neutrons) in a nucleus when weighed separately and the mass of the nucleus when it’s put together. This difference is important because this missing mass is converted to energy using E=mc 2 that’s used to hold the nucleus together. 7) Name three uses for nuclear reactions. • Nuclear weapons • Medicine • Nuclear power generation...
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This note was uploaded on 03/14/2011 for the course CHEM 142 taught by Professor Zoller,williamh during the Fall '07 term at University of Washington.

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Nuclear Chemistry Worksheet - Ne e Na 22 10 1 22 11 →...

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