Le rapport de la dimension d'un atome sur celle de son noyau est égal à :
Passage à S2

Quiz
•
Chemistry
•
10th Grade
•
Hard
Thomas Baliros
Used 19+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
105
10-5
10-10
1
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
La masse d'un atome est sensiblement égale à :
la masse de ses protons.
la masse de ses neutrons.
la masse de son noyau.
la masse de ses nucléons.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Le numéro atomique Z correspond au nombre :
de protons.
de neutrons.
de nucléons.
de noyau.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
L' atome de cuivre représenté par la notation symbolique 6529Cu possède :
65 protons.
29 neutrons.
36 nucléons.
29 protons.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
La masse d'un atome se calcule à l'aide de la relation :
m = Z.mneutron
m = A.mnucléon
m = Z.mproton
m = A.mélectron
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
La représentation symbolique de l'atome de chrome est : 5224Cr, il possède donc :
24 neutrons.
52 neutrons.
28 neutrons.
76 neutrons.
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