
Атом. Периодичность
Authored by Михаил Михайлович
Chemistry
9th - 12th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Сколько электронных слоёв у атома калия?
1
2
3
4
5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите электронную схему для атома кальция
2,8,2
2,8,8,2
2,8,8,1
2,8,1
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Запишите символ химического элемента у атома которого следующая электронная схема: 2,8,4
4.
DROPDOWN QUESTION
30 sec • 1 pt
Атом имеет следующую электронную схему: 2,8,3. У данного атома (a) протонов, (b) нейтронов, (c) электронов.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите химический элемент, у которого на третьем электронном слое содержится 6 валентных электронов
C
Si
P
S
Cl
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Укажите верное распределение электронов по слоям у атома элемента расположенного в третьем периоде и имеющего общую формулу высшего оксида Э2О3
2,8,5
2,3
2,8,4
2,8,1
2,8,3
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Атом химического элемента имеет следующее распределение электронов по слоям: 2,8,5. Укажите общую формулу его высшего оксида
Э5О2
ЭО5
Э2О3
Э2O5
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