Question

an element ‘X’ has valency -3. Its electronic configuration could be.

Answer 1

Answer:

X has valency -3 , it means that the element will gain 3 electrons to become stable or to gain the nearest nobel Gas configuration.

The Nitrogen family has the valency -3

so, the element will be one of the following:-

Nitrogen

Phosphorus

Arsenic

Antimony

Bismuth