Sistemul periodic al elementelor

Sistemul periodic al elementelor

Assessment

Assessment

Created by

Constantin Ichim

Chemistry

7th Grade

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10 questions

Show answers

1.

Multiple Choice

30 sec

1 pt

Un metal este ...

clor

sulf

fosfor

calciu

2.

Multiple Choice

30 sec

1 pt

Un gaz rar este

argon

argint

arseniu

aramă

3.

Multiple Choice

30 sec

1 pt

Simbolul sodiului este ..

So

S

Na

N

4.

Multiple Choice

30 sec

1 pt

Valența hidrogenului este ....

III

II

I

IV

5.

Multiple Choice

30 sec

1 pt

Atomul 126C are în nucleu ....

6 e, 6p

6p, 6n

6e, 6n

6 nucleoni

6.

Multiple Choice

30 sec

1 pt

Potasiul este simbolizat ...

Po

P

Pt

K

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