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Неметалл

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Этот элемент был открыт Берцелиусом В 1817 году.
Неметалл, входящий в структуру речного песка.
Самый малоэлектроотрицательный неметалл, который находится одновременно и в седьмой, и в первой группе.
Created by: Buyanmaa
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