Sistemul periodic al elementelor

Sistemul periodic al elementelor

7th Grade

10 Qs

quiz-placeholder

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10 Qs

Sistemul periodic al elementelor

Sistemul periodic al elementelor

Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Hard

Created by

Constantin Ichim

Used 324+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un metal este ...

clor

sulf

fosfor

calciu

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un gaz rar este

argon

argint

arseniu

aramă

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simbolul sodiului este ..

So

S

Na

N

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Valența hidrogenului este ....

III

II

I

IV

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atomul 126C are în nucleu ....

6 e, 6p

6p, 6n

6e, 6n

6 nucleoni

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Potasiul este simbolizat ...

Po

P

Pt

K

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un element din grupa II A are valența

IV

II

III

I

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