Free Printable VALENTA. SIMBOL CHIMIC

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Worksheets

VALENTA. SIMBOL CHIMIC

Total questions: 6

Worksheet time: 3mins

Name

Class

Date

1.

Metalele din grupa a II A au valenta egala cu:

a)

1

b)

2

c)

3

d)

4

2.

Azotul are simbolul……………………..

a)

A

b)

N

c)

Az

d)

Na

3.

Oxigenul are valența:

a)

3

b)

4

c)

1

d)

2

4.

Gazele rare au molecule:

a)

DIATOMICE

b)

MONOATOMICE

c)

TETRAATOMICE

d)

POLIATOMICE

5.

Molecula de hidrogen este formată din ……… atomi

a)

4

b)

2

c)

3

d)

1

6.

Aluminiul are valența:

a)

1

b)

2

c)

3

d)

4

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