
Щелочные металлы
Authored by Ляйля Буркутова
Chemistry
9th Grade
Used 12+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Щелочные металлы - это металлы
1А группы
1В группы
2А группы
2В группы
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Распределению электронов по электронным слоям в атоме калия соответствует ряд чисел
2,8,8,1
1,8,8,2
1,18,8,2
2,8,18,1
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Заряд ядра атома цезия равен
+6
+133
+79
+55
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Заряд ядра атома цезия равен
+6
+133
+79
+55
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Натрий получают
электролизом расплава его оксида в криолите
электролизом расплавленного хлорида натрия
электролизом раствора хлорида натрия
восстановлением водородом
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Вещество применяют как удобрение, в производстве стекла
NaCl
NaNO3
KClO3
NaCN
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Наименьший радиус атома имеет
калий
рубидий
франций
натрий
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