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Tableau périodique

Authored by Ulrich Chenkep

Science

6th - 8th Grade

Tableau périodique
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

La masse molaire de l'hélium 2 g/mol

Vrai

Faux

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Le fluor est un

Alcalin

Alcalino-terreux

Halogène

Gaz rare

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Le sodium a combien d'électrons de valence ?

1

2

3

8

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Le chlore a combien de couches électroniques ?

7

2

3

8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un atome de néon est plus stable que le carbone

Vrai

Faux

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un atome de sodium a combien d'électron

11

23

12

34

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un atome de Béryllium a combien de neutrons ?

9

4

13

5

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