Question

1.
Sum of electronic spins of all electrons with the
configuration 3d7 is
1) + 3/2
2) + 5/2
3) + 7/2
4) 9/2​

Answer 1

Answer:

+3/2

Explanation:

3d7 yaani 3d ko phle half fill kiya gya fir 2 ko full kiya gya so unpaired electron 3 reh gya so 3×1/2 =3/2

Answer 2

Answer:

in 3d7 5 electrons have +1/2 spin, 2 electrons have -1/2 spin

sun of electronic spins=1/2+1/2+1/2+1/2+1/2-1/2-1/2=3/2

THEREFORE YOUR ANSWER IS +3/2.

I hope you are satisfied by my answer.