Щелочные металлы
Passage
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Оксана Иодко
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16 questions
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1.
MULTIPLE SELECT QUESTION
5 sec • 1 pt
К щелочным металлам относят
2.
FILL IN THE BLANK QUESTION
10 sec • 1 pt
Щелочные металлы имеют одинаковое строение внешнего электронного слоя. Какой тип орбиталей заполняется электронами?
3.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
Самый маленький радиус среди атомов щелочных металлов имеет
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Щелочные металлы имеют небольшую плотность и низкие температуры плавления. У какого из них самые низкие значения?
5.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
Какие из щелочных металлов являются самыми распространёнными в земной коре?
6.
FILL IN THE BLANK QUESTION
20 sec • 2 pts
Какой тип кристаллической решетки образуют соединения щелочных металлов?
7.
MULTIPLE CHOICE QUESTION
5 sec • 2 pts
Такую окраску пламени придают ионы
лития
цезия
натрия
калия
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