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A hydrogen atom and a Li^(++) ion are bo...

A hydrogen atom and a `Li^(++)` ion are both in the second excited state. If `l_H` and `l_Li` are the respective electronic angular momenta and `E_H` and `E_Li` their respective energies, then

A

`l_(H) gt l_(L I) and |E_(H) | gt |E_(L I)|`

B

`l_(H) = l_(L I) and |E_(H) | lt |E_(L I)|`

C

`l_(H) = l_(L I) and |E_(H) | gt |E_(L I)|`

D

`l_(H) = l_(L I) and |E_(H) | lt |E_(L I)|`

Text Solution

Verified by Experts

The correct Answer is:
B
`L = (n h)/(2 pi), |E| prop Z^(2)//n^(2) : n = 3`
`implies L_(H) = L_(Li) and |E_(H)| lt |E_(LI)|`
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