Предмет: Физика, автор: ksandr898

4. У ядрі атома Берилію втримується 9 частинок, навколо ядра рухаються 4 електрони. Скільки в ядрі цього атома протонів і нейтронів?

Ответы

Автор ответа: Drago34311
8

Ответ:

Кількість протонів дорівнює кількості електронів , отже кількість протонів - 4 , а нейтронів - 5 .

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