Question

67
An element
has same number of electrons
in 1st shell and 4rth shell and in 2nd and 3rd shell
1. write the electronic configuration of the element
2. write the group number and period to which it belongs
3. what is valency of element​

Answer 1

Answer:

1.) zinc- 2,8,18,2

and Argon-2,8,8

2.) zinc belongs to group 2 and Argon belongs to group 18

3.) zinc has valancy 2 and Argon is inert gas so it has 0 valancy