Question

The angular momentum of an electron in the hydrogen atom is $\frac{3h}{2\pi }.$ The kinetic energy of this electron is

• A. $4.35ev$
• B. $1.51ev$
• C. $3.4ev$
• D. $6.8ev$

Answer 1

Answer: (B)

$L=\frac{nh}{2\pi };KE=\frac{+13.6}{n^2}$