
Formation des ions
Physics, Chemistry, Science
10th - 12th Grade
Used 26+ times

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8 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Pour gagner en stabilité, les éléments chimiques
se lient entre-eux
forment des ions
forment des molécules
saturent leur couche électronique externe
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pour gagner en stabilité, un atome de structure électronique 1s2 2s2 2p1 a tendance à former un ion de structure électronique :
1s2
1s2 2s2
1s2 2s2 2p6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pour gagner en stabilité, un atome de structure électronique 1s2 2s2 2p6 3s2 3p5 cherche à obtenir la structure :
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2
1s2 2s2 2p6
1s2 2s2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'élément aluminium de symbole Al a pour structure électronique 1s2 2s2 2p6 3s2 3p1 , il forme donc l'ion :
Al3+
Al3-
Al5-
Al2+
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
D'après la classification périodique ci-dessus, le chlore forme l'ion Cl- pour adopter la structure électronique
de l'hélium He
du néon Ne
de l'argon Ar
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
D'après la classification périodique ci-dessus, le gaz rare le plus proche de l'aluminium Al est
l'hélium He
le néon Ne
l'argon Ar
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un cation est
un atome neutre
un ion chargé positivement
un ion chargé négativement
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