Question

If electron falls from n=3 to n=2then emitted energy is?

Answer 1

Answer:

It depends upon which type of nucleus you have...

Explanation:

If we take the standard one that is considering the hydrogen nucleus.

My sir told to learn the values of energy levels in hydrogen atom and answer accordingly...

n=2 to n=1 :- 10.20 eV

n=3 to n=1 :- 12.09 eV

so for your questions answer it must be..

12.09 - 10.20 = 1.89 eV

Hope it helps you a little bit...