Question

The energy potential of a hydrogen atom is -13.6 eV. What will be the energy of the atom corresponding to n=5:

• A. -0.54 eV
• B. -0.85 eV
• C. -0.64 eV
• D. -0.40 eV

Answer 1

The correct option is A

-0.54 eV

Energy of ground state $E_o$=-13.6 eV and energy level=5

$E_5$= $\frac{-13.6}{n^2}$ eV

$E_5$= $\frac{-13.6}{5^2}$ eV

$E_5$= $\frac{-13.6}{25}$ eV

=-0.54eV