3èmeE composition des molécules, des atomes et des ions
Quiz
•
Chemistry, Science
•
1st Grade
•
Practice Problem
•
Medium
Standards-aligned
S VALLAIN
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60 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
le numero atomique d'un atome correspond-il:
le nombre de neutrons?
le nomre de protons?
le nombe d'electrons?
le nombre de nucleons?
2.
MULTIPLE CHOICE QUESTION
45 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
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Le noyau de l'atome est constitué
de protons uniquement
de protons et neutrons
d'électrons
de vide
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Les protons sont de charges
positives
négatives
n'ont aucune charges
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Comment expliquer la formation d'un cation?
Un atome qui a perdu un ou plusieurs électrons
Un atome qui a gagné un ou plusieurs neutrons
Un atome qui a gagné un ou plusieurs protons
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Un atome est électriquement
chargé
neutre
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Dans un atome, il y'a
plus de protons que de neutrons
autant d'électrons que de nucléons
autant de protons que de neutrons
autant de protons que d'électrons
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