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

Options

A. `-0.54 eV`
B. `-0.50 eV`
C. `-0.85 eV`
D. `-2.72 eV`

Answer

A

Explanation

`E_(n) = (E for H xx Z^(2))/(n^(2)) = (-13.6 xx 1^(2))/(25) = - 0.54 eV`