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Identitatea atomului

Authored by Delia Ognean

Chemistry

7th Grade

Used 13+ times

Identitatea atomului
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9 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Masa atomului este concentrata in:

nucleu

invelisul electronic

protoni

neutroni

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Atomul are sarcina:

pozitiva

negativa

neutra

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Intr-un atom numarul atomic Z este egal cu:

nr. de electroni

nr. de neutroni

nr. de protoni

4.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Media Image

Specificați numărul de electroni pentru Aluminiu cu A=26 si Z=13

(a)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Pentru Fluor cu 9 protoni si numărul de masă 18, numarul atomic Z este?

27

18

9

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Clorul are 17 electroni si numarul de masă 35. Numarul de neutroni este:

17

35

18

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Pentru azot cu 7 neutroni, 7 protoni, 7 electroni, numarul atomic este

14

7

21

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