Solving for energy of a photon

[Lauren Lewis3L]

When solving for the energy of final orbital-initial orbital do you use the equation En=-hR/n^2? I believe that has to be set equal to hv to figure out the frequency but I'm not entirely sure?

[Kimberly Koo 2I]

That should be correct since the Bohr frequency condition says that hv=E upper-E lower

[RasikaObla_4I]

Yes, we did a problem like this in one of the review sessions, and we used the equation En=-hR/n^2 to solve for the change in energy.

[Kayli Choy 2F]

Additionally, in this equation, the energy is negative because when an electron drops from a higher energy level to a lower energy level, energy is released in the form of a photon.