Предмет: Химия, автор: zinnikzzzz

Назовите химические элементы, а также определите заряды ядер этих атомов, зная распределение электронов по энергетическим в их атомах: 2,8,2

Ответы

Автор ответа: nurgazina1971

0

Элемент-магний .Заряд ядра -12
протонов-12,нейтронов-12,протонов-12

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