Not considering the electronic spin, the degeneracy of the second excited state (n = 3 ) of H atom is 9 , while the degeneracy of the second excited state of H - is :

Question

Aicharya · Accepted Answer

Energy order of orbitals of H is decided by only principle quantum number (n) while energy order of

H^{-}

is decided by

(n + l)

rule:
Electronic configuration of

' H^{-}'

is

- 1 s^{2}

its energy order is decided by

n + l

rule.

H^{-} = 1 s^{2} 2 s^{0} 2 p^{0}

Its

2^{n d}

excited state is 2p
And degeneracy

2 p is 3

.

Not considering the electronic spin, the degeneracy of the second excited state (n = 3 ) of H atom is 9 ,…

Solution