[MakoEyes]

Hydrogen atoms absorb energy so that electrons can be excited to the n = 6 energy level. Electrons
then undergo these transitions, among others:
(a) n = 5 -> n = 4 (b) n = 6 -> n = 3 (c) n = 6 -> n = 4
(i) Which transition produces a photon with the least energy? a
(ii) Which transition produces a photon with the highest frequency? a
(iii) Which transition produces a photon with the shortest wavelength? b

answers in red, are these correct?

[Borek]

(i) Which transition produces a photon with the least energy? a
(ii) Which transition produces a photon with the highest frequency? a

Obviously not. The higher the energy, the higher the frequency, so these two can't be OK at the same time.

[MakoEyes]

Right. I've revised my answer:

(i) - a
(ii) - c
(iii) - b

correct?