La masse molaire de l'hélium 2 g/mol

Tableau périodique

Quiz
•
Science
•
6th - 8th Grade
•
Hard

Ulrich Chenkep
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vrai
Faux
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le fluor est un
Alcalin
Alcalino-terreux
Halogène
Gaz rare
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le sodium a combien d'électrons de valence ?
1
2
3
8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le chlore a combien de couches électroniques ?
7
2
3
8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un atome de néon est plus stable que le carbone
Vrai
Faux
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un atome de sodium a combien d'électron
11
23
12
34
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un atome de Béryllium a combien de neutrons ?
9
4
13
5
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