Suppose hydrogen atoms absorb energy so that electrons are excited to the n=7 energy level. Electrons then undergo these transitions,among others:

(a) n=7--->n=1

(b) n=7--->n=6

(c) n=2--->n =1

Which transition produces a photon with

(i) the smallest energy,

(ii) the highest frequency, and

(iii) the shortest wavelength?