An Electron In The N = 5 Level Of An H Atom Emits A Photon Of Wavelength 94.98 Nm. To What Energy Level Does The Electron Move?

Answer 1

94.98 nm = 94.98 x 10-9 meters, then
1/wavelength = R*(1/n^2 - 1/5^2)
Solve for n.
Post your work if you get stuck.