Chapter 21, Problem 21.133MP

The amount of paramagnetism for a first-series transition metal complex is related approximately to its spin-only magnetic moment. The spin-only value of the magneticmoment in units of Bohr magnetons (BM) is given by $\sqrt{n\left(n+2\right)}$ , where n is the number of unpaired electrons.Calculate the spin-only value of the magnetic moment for the 2+ ions of the first-series transition metals (except Sc)in octahedral complexes with (a) weak-field ligands and(b) strong-field ligands. For which electron configuration scan the magnetic moment distinguish between high-spin and low-spin electron configurations?