Предмет: Физика, автор: smolinstepanes

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Автор ответа: 1y0uuse1ess

Ответ:Атом олова состоит из положительно заряженного ядра (+50), внутри которого есть 50 протонов и 69 нейтронов, а вокруг, по пяти орбитам движутся 50 электронов

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