Question
Q215) How many 3d electrons can have spin quantum number (-1/2)
Q215) How many 3d electrons can have spin quantum number (-1/2)
SOLUTION
for d, l = 2
and m = +l to -l
or m = +2, +1, 0, -1, -2 total 5 suborbvitals
each sub-orbital can have two electrons
∴ number of electrons = 10 number
half with+1/2 spin = 5 number
and half with -1/2 spin = 5 number
Answer:(a)