Предмет: Химия, автор: 151515096

Елемент знаходиться в V групі періодичної системи хімічних елементів. відносна молекулярна маса вищого оксиду в двічі більша за відносну молекулярну масу хлору. Назвіть елемент, запишіть електронну формулу його атома

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Автор ответа: ashaaa

0

Це Арсен
формула на фото

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