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The energy of an electron in the first e...

The energy of an electron in the first energy level of H atom is -13.6 eV. The possible energy value (s) of the excited state (s) for the electron in `He^(+)` is (are)

A

`-3.4 eV`

B

`-4.2 eV`

C

`-6.8 eV`

D

`+6.8 eV`

Text Solution

Verified by Experts

The correct Answer is:
A
E `=-(Z^2)/(n^2) ` (13.6eV)/atom
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