The energy of hydrogen atom in its ground state is `-13.6 eV`. The energy of the level corresponding to the quantum number `n` is equal `5` is

Options

A. `-5.40 eV`
B. `-2.72eV`
C. `-0.85 eV`
D. `-0.54 eV`

Answer

D

Explanation

`E_(n) = - (13.6)/(n^(2)) eV rArr E_(5) = (-13.6)/(5^(2)) = (-13.6)/(25) = - 0.54 eV`