Question

element X is located in period 3,group 2 deduce its electronic configuration. A 2,2​

Answer 1

Answer:

mg

Explanation:

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

Its electronic configuration is [Ne]3s

2

i) The no. of valence electrons =2

ii) Valency =2

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

Answer 2

Explanation:

element name - Magnesium ( Mg)

electronic configuration - 2, 8,2