How many maximum number of electrons that can be accommodated in a sub shell?

The maximum number of electrons that can be accommodated in a sub shell is 2(2l + 1), where l = 0,1,2,3…so on for s,p,d,f sub shells respectively.

For example,

i. s sub shell, l = 0 , number of electrons accommodated are 2

ii. p sub shell, l = 1 , number of electrons accommodated are 6……….so on