Question

E.C of an element X is (2,8,8,1) state the period and the group to which it belongs.​

Answer 1

Explanation:

Given :-

Electronic configuration of the element x =2,8,8,1

Atomic number = 2+8+8+1 = 19

Since it has 1 as valency, so it belongs to group 1.

Also it contains four sub-shells, so it belongs to period 4.

Answer 2

Answer

Explanation:

Given :

Electronic configuration of the element x

= 2,8,8,1 Atomic number = 2+8+8+1 = 19

Since it has 1 as valency, so it belongs to

group 1.

Also it contains four sub-shells, so it belongs to period 4.