Which wavelengths of visible light could be absorbed via a single photon by a hydrogen atom that is initially in the first excited state?

Question

theeric · Answer

This might help: http://casswww.ucsd.edu/archive/public/tutorial/images/physics/h_elevels.gif

theeric · Answer

This is probably better: http://2.bp.blogspot.com/-I-EZQj9M0j0/UAXIZYrRAyI/AAAAAAAAAHE/q7CgrvjHKPk/s1600/Hydrogen_transitions.png

anonymous · Answer

I have the wavelength as 91.2 at n=1 and the light is UltraViolet..Not sure if that's right

theeric · Answer

I don't know! I'm a little busy, and I really need to focus, sorry.
But I know that ultraviolet light is not visible, and thus is not the answer.

From the first state, an electron can absorb only the energies that allow it to fall into the higher energy states, which have specific energies.
So you can go from the first state to the second, third, fourth, etc. I don't know what energy changes they are or which energies can come from photons of visible light.

anonymous · Answer

First excited state is n=2. Calculate some energies of transition to n=3,4,5, etc. and see which correspond to light in the visible range about 450-750 nm.

anonymous · Answer

Thanks guys! I had to turn in my homework early so I didn't even see your answers but I have a test tomorrow and this will help a lot. :D

anonymous · Answer

Hydrogen energy level: -13.6 eV / n^2  Then get transitions by changing n.