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Chemistry, 05.03.2022 19:50 marisol56

When radioactive thorium (Th) decays it emits a beta particle and produces protactinium (Pa) as seen in the nuclear equation. The atomic mass of thorium missing in the nuclear equation must be A) 233. B) 234. C) 235. D) 238.

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When radioactive thorium (Th) decays it emits a beta particle and produces protactinium (Pa) as seen...
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