Question

‘X’ is an element which belongs to VA group and 3rd period. The oxidation state and name of the

element are

A) +5and P B) –3and N C) +5and N D) –3and S​

Answer 1

Explanation:

The element which belongs to 3rd period and group 2 is Magnesium.

Its electronic configuration is [Ne]3s2

i) The no. of valence electrons =2

ii) Valency =2

iii) It is a metal as it belongs to the s-block