The Balmer Series of Lines in the Hydrogen Atom Was

Multiple Choice

The Balmer Series of lines in the hydrogen atom was very important in the history of physics and astronomy. What made it so important?

A) It helped Rutherford explain the workings of the atomic nucleus
B) Balmer's experiments with these lines helped prove Wien's Law
C) When electrons change levels to produce the Balmer series, the emitted light is in the visible part of the spectrum, so the lines were easy to see with our eyes
D) The Balmer series of lines can only be observed from outer space; so the competition to see these lines led to the space race
E) Mr. Balmer never got the Nobel prize, which made everyone in the field of spectroscopy so angry, they worked extra hard