Предмет: Химия, автор: noname373397

Помогите 11 пожалуйста

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Автор ответа: arina141432

Ответ:

CL химические элемент с атомный номером 17, принадлежит 17й группе в таблице менделеева, имеет атомную массу 35.5, также принадлежит к главной подгруппе VII, находится в 3-ем периоде таблицы.

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