Question

The $K.E$. of electron in $H{e}^{+}$ will be maximum in

• A. $3^{\text{rd }}$ orbit
• B. $2^{\text{nd }}$ orbit
• C. $1^{\text{st }}$ orbit
• D. in orbit with $n=\infty$

Answer 1

Answer: (C)

Kinetic energy $=\frac{Z{e}^2}{r_n}$