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agdelul
@agdelul
November 2021
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сколько протонов находится в атомном ядре химического элемента, если молекулярная масса этого элемента составляет 79 г / моль?
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toxar63
Если M = 79 г/моль => Se.
Протонов у Se (селен) = 34.
Ответ: 34.
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Answers & Comments
Протонов у Se (селен) = 34.
Ответ: 34.