Question

number of valence electrons in Cl - ion is _____________.​

Answer 1

Answer:

8

Explanation:

because chlorine's atomic no. is 17 but there is negative charge which shows that there is one gain of electron

So the no. of valence electrons is 8

Answer 2

Answer:

1

Explanation:

Electronic configuration = 1s^2 2s^2 2p^6 3s^2 3p^5

1 electron needed to get octet electron configuration