Question

4 Vumber of valence electrons in ci-ion are :​

Answer 1

The electronic configuration of chlorine is 2, 8, 7 (Atomic number-17).

Cl

−

is formed from adding one electron so the new electronic configuration is 2, 8, 8. So the valence electrons is 8.

Answer 2

Answer:

2,8,8 4 vumber of valence electrons in co-ion are