Question

The maximum number of electrons that can have principal quantum number, n= 3 and spin number ms = -1/2 is ?

Answer 1

For n=3
l can be 2,1,0
So much can be -2,-1,0,1,2
Total no. Of electrons of this type is 10 but the question is demanding spin quantum no. To be -1/2 so the number of electrons is 5.