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What is the kinetic energy ofan electron...

What is the kinetic energy ofan electron in second excited state of `He^(+)`? (Energy of electron in first shell of `H=-13.6eV`)

A

`-1.51eV`

B

`-6.04eV`

C

`-13.08eV`

D

`-13.06eV`

Text Solution

Verified by Experts

The correct Answer is:
B
K.E. of electron in second excited staet (n=3 shell)of `He^(+)`
`K.E.=-E_(3)=-(E_(1))/9=-(13.6xx2^(2))/9`
`=-6.04eV`
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