Question

what is the name given to the series of transitions that end at the n=2 energy level?
lyman series
rydberg series
balmer series
paschen series

Explanation:

In atomic physics, the Balmer series is a set of spectral lines resulting from transitions of electrons to the n = 2 energy level of the hydrogen atom. The Lyman series ends at n = 1, the Rydberg formula is a general formula for spectral - series and not a specific series name like the others here, and the Paschen series ends at n = 3.

Answer:

C. Balmer series