Q8 of 28 Page 28

Write the names from the description.

The family of metals having valency two.

The family of metals having valency two are (alkaline earth metals).


⇒ Beryllium


⇒ magnesium


⇒ Calcium


⇒ Strontium


⇒ Barium


⇒ Radon


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8

Write the names from the description.

The family of nonmetals having valency one.

 8

Write the names from the description.

The family of metals having valency one.

 8

Write the names from the description.

The metalloids in the second and third periods.

 8

Write the names from the description.

Nonmetals in the third period.