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The total energy of an electron for any ...

The total energy of an electron for any particular energy level in hydrogen atom is -1.51 eV. The value of principal quantum number of the energy level is

A

n=1

B

n=2

C

n=3

D

n=4

Text Solution

Verified by Experts

The correct Answer is:
C
Energy of an electron in n-th energy level,
`E_n=(13.6)/(n^2) or, -1.51=(13.6)/(n^2)`
`or, n=sqrt((13.6)/(1.51))=3`
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