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The hydrogen -like species Li^(2+) is in...

The hydrogen -like species `Li^(2+)` is in a spherically symmetric state `S_(1)` with one node. Upon absorbing light , the ion undergoes transition to a state `S_(2)`. The state `S_(2)` has one radial node and its energy is equal is to the ground state energy of the hydrogen atom.
The sate `S_(1)` is

A

1s

B

2s

C

`2rho`

D

3s

Text Solution

Verified by Experts

The correct Answer is:
B
s- orbital with one radial node orbital is 2s
`:. S_(1) = 2s, S_(2) = 3p [ :' "radial node" =1 "for" S_(2), E_(S_(2)) = E_(H)]`
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