Which of the following has minimum magnetic moment?
Answer & explanation
Correct answer: option 3
Ni2+ has minimum magnetic moment.
Ni2+: [Ar]3d8
No of unpaired electrons: 2
Magnetic moment, u = \(\sqrt{n(n+2)}\) = \(\sqrt{2(2+2)}\) = \(\sqrt{8}\) = 2.8 B.M.