Question

What's the sum of all the quantum numbers for the valence e of chlorine atom?

Answer 1

Answer:

1. Sum = n+l+m= 5 where n = 3, l = 1, and m = 1.

Explanation:

As the electronic configuration of chlorine is 1s2 , 2s2 2p6 , 3s2 3p5 . Thus the fifth electron in the 3p subshell has quantum numbers 3,1,1, ±1/2.