Recent content by tententententen

  1. T

    Prove that the nth energy level of atom has degeneracy n^2

    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...
  2. T

    Average potential and kinetic energies for H ground state

    Thanks a lot! That makes a lot of sense. I appreciate it!
  3. T

    Average potential and kinetic energies for H ground state

    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...