Предмет: Химия, автор: alinkalapko049

2. Сколько электронных слоёв в атомах элементов с порядковыми номерами 2, 9,16,33?

3. Сколько электронных слоёв в атомах, которые содержат в ядрах 5,8,15,19 протонов?

Ответы

Автор ответа: olgasolov1
0
Вот так будет получаться
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