[ll_gone]

Could someone please check if I did these questions right or explain what I did wrong? There are also two I did not understand....
Please help I need to understand this. Thanks!!!

[cth]

It looks OK to me. 

Question h
It asks about the Pauli exclusion principle that says: two particles with a spin half-integer (which is the case for electrons) cannot have the same four quantum numbers at the same time. http://en.wikipedia.org/wiki/Pauli_exclusion_principle

Question i
"Degenerate" electrons means they have the same energy. For example, an electron in a 2p_x orbital and one in a 2p_y are degenerate. So, what you are looking for are electrons with same n and l quantum numbers, but which can have different m_l and s.