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15-05-2020
Chemistry

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15-05-2020

Explanation:

15 8 O ---> 15 7 N + 0 1 e

Element: Oxygen

Mass Number: 16 u

Decay: Beta

238 92 U ----> 234 90 Th + -4 -2 e

Element: Uranium

Mass Number: 238.051 u

Decay: Alpha

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