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If the binding energy of the electron in...

If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy required to remove the electron from the first excited state `Li^(+2)` is .......

A

30.6 eV

B

13.6 eV

C

3.4 eV

D

122.4 eV

Text Solution

Verified by Experts

The correct Answer is:
A
`E_(2)=(Z^(2)E_(0))/(n^(2))=(-(3)^(2)xx13.6)/((2)^(2))" " =-30.6eV`
`:.` The energy required =30.6 eV
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