What is the maximum number of electrons which can be accommodated in a shell for which the highest principal quantum number value is 4

What is the maximum number of electrons which can be accommodated in a

1.	What is the maximum number of electrons which can be accommodated in a shell for which the highest principal quantum number value is 4
Answer» 10 18 32 54 Solution :MAXIMUM NUMBER of ELECTRONS `=2n^2` (where n=4) =`2xx4^2=32`