Question

i) State (n+l) rule. (ii) Arrange the following subshells in order of their increasing energy for the Hydrogen atom: 2s, 3p, 2p, 4d. (iii) Which has higher energy : 3s(Na) or 3s(K) ?​

Answer 1

Explanation:

1. (n+l) rule states that which orbitals have least value or energy will filled first to the electrons