Question

an electron on a hydrogen atom falling to the n=2 level emits light at a wavelength of 410 nm. From which energy level did the elctron fall?

Answer 1

6

Step-by-step explanation:

This can be calculated from a general equation from the which the energies of the various spectral lines of hydrogen shown in the image attached. The various series of hydrogen are:

Lyman, Balmer, Paschen,Bracket and Pfund series.