Щелочные и щелочноземельные металлы
Quiz
•
Chemistry
•
9th Grade
•
Hard
Наталья Мурдасова
Used 19+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Атомы щелочных металлов имеют на внешнем уровне
1 электрон
2 электрона
3 электрона
4 электрона
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Щелочные металлы в химических реакциях являются
окислителями
восстановителями
не изменяют степень окисления
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При взаимодействии лития с кислородом образуются:
Пероксид лития
Гидроксид лития
Гидрид лития
Оксид лития
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие вещества образуются при взаимодействии натрия с водой
NaOH +H2
NaH+O2
Na2O+H2
NaOH
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Щелочноземельные металлы в сравнении со щелочными
одинаковые по активности
менее активны
неактивны
более активны
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
К щелочноземельным металлам относятся
натрий
магний
барий
стронций
франций
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В ряду Be --> Mg --> Ca--> Sr --> Ba
растет электроотрицательность
убывает радиус
растет металличность
растет число электронов на ВЭУ
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