How many ${}^{\prime }{s}^{\prime }$ subshell electrons are in $1s^2,2s^2,2p^6,3s^2,3p^2$

Q. How many electrons are there in $f$ subshell of $Np(Z=93)$ in ground state electronic configuration

Q. Write the electronic configuration of Chlorine (Z= 17) and how many electrons are present in p-subshell.

Q. How many orbitals are present in an $s-$subshell?

Q. How many orbitals in this subshell have an unpaired electron, if an atom has eight electrons in a $3d$ subshell?

Q. How many degenerate orbital are present in a subshell if electron associated with that subshell possesses orbital angular momentum$=2\sqrt{3}h$?