Homework Statement
Prove that the nth energy level of an atom has degeneracy equal to n^2.
Homework EquationsThe Attempt at a Solution
I was thinking of using the sum from n=1 to N of n = N(N+1)/2 but my professor said i needed to change that equation up a bit to be able to show this. I was...
Homework Statement
Calculate the average potential and kinetic energies for the electron in the ground state of hydrogen.
Homework EquationsThe Attempt at a Solution
I know that KE = E - <U(r)>. I know that E = (-KZ^2e^2)/(2a0) and I know that U(r) = -KZe^2/r but I can't figure out how to...