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Minimum energy required to takeout the o...

Minimum energy required to takeout the only one electron from ground state of `He^(+)` is

A

`13.6 eV`

B

`54.4 eV`

C

`27.2 eV`

D

`6.8 eV`

Text Solution

Verified by Experts

The correct Answer is:
B
`E_(n) =-(13.6z^(2))/(n^(2)) eV`
`rArr E_(1) =-(13.6 xx (2)^(2))/((1)^(2)) =- 54.4 eV`
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