The potential energy of an electron in the fifth orbit of hy... | PHYSICS - BOHR MODEL OF THE HYDROGEN ATOM | SolveeIt | Solveeit

Today, August 19

Question

The potential energy of an electron in the fifth orbit of hydrogen atom is –

A

0.54 eV

B

– 0.54 eV

C

1.08 eV

D

– 1.08 eV

Answer

– 1.08 eV

Explanation

Solution

V = – 27.2eV $\frac{Z^{2}}{n^{2}}$ = – 27.2eV $\frac{1^{2}}{5^{2}}$

= – $\frac{27.2}{25}$ eV = –1.08 eV