
Învelișul de electroni. Configurații electronice

Quiz
•
Chemistry
•
7th Grade
•
Medium
FLORINA CRISTIAN
Used 34+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câte straturi complet ocupate cu electroni are elementul cu Z= 8?
niciunul
două straturi
un strat
trei straturi
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Elementul cu Z=11 are electronul distinctiv în stratul:
M
L
K
N
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Numărul maxim de electroni dintr-un strat se calculează cu formula:
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Un element chimic are numărul atomic Z= 6 și numărul de masă A= 12. Este adevărat că:
are 18 electroni
are 12 electroni
are 4 electroni pe ultimul strat
are 6 electroni
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Energia straturilor electronice:
crește de la nucleu spre exterior
crește de la exterior spre nucleu
este aceeași pentru fiecare strat
crește de la stratul K (1) la stratul Q (7)
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Un element X are pe stratul M 7 electroni. Care este numărul atomic al acestui element?
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Numărul maxim de electroni din stratul K (1) este:
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