Предмет: Химия, автор: gunay8285

1) Определите каждый элемент как металл, неметалл или металлоид.
Медь
Кислород
Бор
Калий
Кремний
Гелий
Алюминий
Водород
Полоний

2) Перечислите четыре физических свойства металлов, неметаллов и металлоидов.
Металлы-
Неметаллы-
Металлоиды-

Приложения:

Ответы

Автор ответа: brainstorm14

Номер 1
Медь - металл
Кислород - неметалл
Бор - металлоид
Калий - металл
Кремний - металлоид
Гелий - неметалл
Алюминий - металл
Водород - неметалл
Полоний - металлоид
Номер 2
Металл - пластичность , теплопроводность , плотность , металлический блеск
Неметалл - газообразное , твёрдое , жидкое , аморфное состояния
Металлоид - блестящий металлический блеск , хрупкость , электропроводность , энергия тонизации

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