Предмет: Химия, автор: nonkinadarya

срочно помогите пожалуйста !! я даю 100 баллов​

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Автор ответа: riabkoanastasia09
0

Відповідь:

Элемент с порядковым номером 51 в таблице элементов - это сурьма (Sb).

Порядковый номер (Z): 51

Атомная масса: около 121.76 г/моль

Валентные электроны: Сурьма имеет 5 валентных электронов.

Свойства сурьмы:

Высший оксид сурьмы: Сурьма может образовывать различные оксиды, но высший оксид - Sb2O5, также известный как антимониев пентоксид.

Летучее водородное соединение: Сурьма может образовывать газовое соединение с водородом (SbH3), называемое стибином.

Кислоты и соли: Сурьма может образовывать соли и соединения с различными кислотами.

Самые распространенные степени окисления сурьмы включают +3 и +5.

Пояснення:

Кислота и соль для сурьмы: антимониев нитрат (Sb(NO3)3) и антимониев сульфат (Sb2(SO4)3).

Валентные электроны сурьмы: 5.


nonkinadarya: рахмеет
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