a) Calculate, in units of ℏ, the magnitude of the maximum total
(orbital+spin) angular momentum for an electron in a hydrogen atom
for states with a principal quantum number of 5.
b) An electron initially in a 4p state decays to a lower energy
state. Which energy state is forbidden? (pick one): 1s, 2s, 3d, or
2p? Why?
c) What is the total number of electrons that can occupy a
subshell for a given amount of orbital angular momentum l?...