Question

choose the correct option for the quantum number of the last electron of 3p^6.
A)4,0,0,+1/2
B)3,1,-1,-1/2
C)4,1,0,-1/2
D)3,0,1,1/2​

Answer 1

option B is correct

3P = n=3

l =1

ml =2l +1=3 = -1, 0 , +1

ms =+1/2 or-1/2