What is the maximum number of electrons that can be accommodated :
(i) in the shell with `n=3`
(ii) in the subshell with `I=3`
(iii) in the orbital with `m_(I) = +3`

Answer

(i) For a shell with `n=3` the number of orbitals `=n^(2)=3^(2)=9`
`therefore` Number of electrons `=9xx2=18`
(ii) Number of orbitals `=2I+1=2xx3+1=7`
`therefore` Number of electrons `= 7xx2=14`
(iii) This corresponds to only one orbital and hence it can accomodate only 2 electrons.