Предмет: Химия, автор: kotara228kot

Вкажіть місце розташування Оксигену в періодичній системі: період, група, підгрупа.
Наприклад: 1ІА. Позначення номеру групи та підгрупи - англійська клавіатура.

Ответы

Автор ответа: MaybelMaybel

3

Відповідь:

ІІ період

VІ група

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