An atom that has 84 protons and 86 neutrons undergoes a reaction. at the end of the reaction, it has 82 protons and 84 neutrons. what happened to the atom?
it accepted radiation in a chemical reaction.
it donated neutrons to another atom in a chemical reaction.
it emitted an alpha particle in a nuclear reaction.
it accepted protons in a nuclear reaction.
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Ответ:
B
Explanation: