Предмет: Химия, автор: Shanu

Исходя из положения элементов в периодической системе дайте характеристику атомов- никеля, мышьяка

Ответы

Автор ответа: ShoshevaN

1. Ni- № 28 IV группа
2.Металл
3.28NI заряд +28 на 1 электронном уровне 2элктр на 2 8 электр на 3 8электр на 4 10
4.Ni- валентность 4 степень окисления +4 и -4
5. NiO4-основной оксид

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