What is the frequency of the photons emitted by hydrogen atoms when they undergo transition from n=5 to n=3

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.

it would only be the stuff in module eight so you need to study all the lessons in that you also could check the flvs

hope this : )