
Atomes et Ions
Authored by margaux PROSPERE
Chemistry
3rd Grade
Used 38+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Les protons sont de charges
négatives
positives
neutres
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
le noyau de l'atome est constitué :
d'électrons
de protons uniquement
de protons et neutrons
de vide
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Pour He, A=4 et Z=2. Quelle est donc la composition de l'atome d'Helium ?
2 protons, 2 électrons et 2 neutrons
2 nucléons, 2 neutrons et 4 électrons
4 neutrons, 4 protons et 2 électrons
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Que représente le nombre A pour un atome ?
son numéro atomique
son nombre d'électrons
sa masse atomique
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
un atome est électriquement :
chargé
neutre
6.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
qu'est ce qu'un cation ?
un atome qui a gagné un ou plusieurs électrons
un atome qui a gagné un ou plusieurs protons
un atome qui a perdu un ou plusieurs électrons
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
dans un atome, il y a :
plus de protons que d'électrons
plus de protons que de neutrons
autant de protons que d'électrons
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