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21.3 Exercise 25

Avg difficulty 2.5

A 58B _{5}^{8} \text{B} atom (mass = 8.0246 amu) decays into a 48Be _{4}^{8} \text{Be} atom (mass = 8.0053 amu) by loss of a β+ particle (mass = 0.00055 amu) or by electron capture. How much energy (in millions of electron volts) is produced by this reaction?

OpenStax Chemistry 2e, 21.3 Radioactive Decay, exercise 25

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Adapted from General Chemistry © 2019 Rice University. Licensed under CC BY 4.0. Sources: Chemistry 2e, Chemistry: Atoms First 2e. Imported at revision 32c7196.