Предмет: Химия, автор: ritinabadasian45695

Пожалуйста очень срочно!!!!
Выбери, какой (какие) из перечисленных элементов относится (относятся) к щелочноземельным металлам?
1,H
2. Ca
3. Металлы, расположенные во второй B группе Периодической системы Д. И. Менделеева
Al

Ответы

Автор ответа: iliyaskina

Ответ:

Объяснение:

К щелочноземельным металлам относятся металлы IIA группы(за исключением бериллия и магния)

Кальций является щелочноземельным металлом

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