Question

The term degeneracy means the number of different quantum states of an atom or molecule having the same energy. For example, the degeneracy of the n = 2 level of the hydrogen atom is 4 (a 2s quantum state, and three different 2p states). What is the degeneracy of the n = 1 level?

Answer 1

I don't agree that the 2s and 2p levels have the same energy.

Answer 2

Yeah I was totally confused with this and I could not follow it in the book. This was a annoying problem.