1. Tardigrade
  2. Question
  3. Physics
  4. In nth orbit of hydrogen atom energy E=(-13.6/n2) eV, then energy required to displace electrons from n=1 to n=2 is:

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. In $n$th orbit of hydrogen atom energy $E=\frac{-13.6}{n^{2}} eV$, then energy required to displace electrons from $n=1$ to $n=2$ is:

Rajasthan PMTRajasthan PMT 1999

Solution:

Energy required to displace electron from
$n=1$ to $n=2$
$E=-13.6\left\{\frac{1}{1^{2}}-\frac{1}{2^{2}}\right\}$
$=-13.6 \times \frac{3}{4}=-10.2\, eV$