An unstable nucleus loses the most mass if the nucleus emits (1) an alpha particle (3) a positron (2) a beta particle (4) a gamma ray

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asked Dec 12, 2017 44.4k views

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Joald · Answer 1 · 2017-12-19T04:06:25+0000

1. an alpha particle

gamma rays are formally massless, positrons and electrons (beta particles) have negligible mass, but alpha particles have about 4 amu of mass

An unstable nucleus loses the most mass if the nucleus emits (1) an alpha particle (3) a positron (2) a beta particle (4) a gamma ray

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