Question

The energy of an electron in h^th orbit of hydrogen atom is –13.6/n²ev energy required to excite the electron from the first orbit to the third orbit is

Options

• 10.2 j

• 12.09 j

• 12.09 ev

• 13. ev

Answer 1

12.09 ev

Explanation:

E = E₃ – E₁

= `- (-13.6)/3^2 - ((= 13.6)/1^2)` = 12.9 ev.