Предмет: Химия, автор: Tania1234576

кількість електронів на останньому енергетичному рівні у атома 51 Sb

Ответы

Автор ответа: 9KaRiNkA
2

число электронов на внеш. энерг. уровне определяется по номеру группы,сурьма нах-ся в 5 группе,соответственно число электронов на внешнем энерг. уровне равно 5.

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