Chemistry

Lucille Powell

30 January, 09:41

When a radioactive atom emits an alpha particle, the mass number of the radioactive atom

A. Increases because the alpha particle contains 2 electrons

B. Decreases because the alpha particle contains 2 electrons

C. Increases because the alpha particle contains 2 protons

D. Decreases because the alpha particle contains 2 protons

+2

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