I require help with question 5 and 6 please and thank you!

5. Which (if any) of the following is not a valid set of quantum numbers? (a) Set 1 only (b) Set 2 only (c) Set 3 only (d) All sets are valid (e) No sets are valid 6. (a) The quantum number n describes the of an atomic orbital and the quantum number l describes its (b) When n=2, the possible values of l are: (c) What type of orbital corresponds to t=3 ? (d) What type of atomic orbital has 1 nodal planes? (e) The maximum number of orbitals that may be associated with the quantum number set n=4,l= 2 , and ml=2 is (f) How many subshells are in the n=5 shell? (g) How many orbitals are in the n=2 shell? (h) How many orbitals are in the l=3 subshell? (i) The maximum number of orbitals that may be associated with the quantum numbers n=1 and l=