Charges des ions - Exercices - CRB - 3ème
2nd Grade - University
•19 Qs
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Charges des ions - Exercices - CRB - 3ème
Quiz
•
Chemistry, Science
•
2nd Grade - University
•
Practice Problem
•
Hard
Nancy Devaux
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel est la tendance de la famille VIIa (les halogènes) afin de devenir plus stable?
Donner 7 électrons
Donner 1 électron
Voler 7 électrons
Voler 1 électron
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la charge de l'ion Magnésium?
-1
-2
+1
+2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la tendance de la famille I a (les alcalins) afin de devenir plus stable?
Donner 1 électron
Voler 1 électron
Donner 7 électrons
Donner 7 électrons
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
l'ion oxygene O2- a pour numero atomique z = 8.
quel est le nombre de ses electrons?
6
8
10
12
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
X2+ et Y2- ont le meme nombre d'électrons que le gaz noble de la deuxième période. Quel est le numéro atomique de X et de Y?
ZX = 12 et ZY = 8
ZX = 8 et ZY = 12
ZX = 10 et ZY = 10
ZX = 2 et ZY = 2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cl- est la formule de l'ion :
Chlore
Chlorure
Calcium
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mg2+ a pour nombre d'électrons 10 et nombre de nucléons A = 24. Quel est le nombre de neutrons de Mg?
14
10
12
24
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