Question

A compound of vanadium has magnetic moment of 1.73 BM . The vanadium chloride has what formula?

Answer 1

Number of unpaired electron are given by

Magnetic moment = √n(n+2)

Where n is the No. of unpaired electrons

Or 1.73 = √n(n+2)

1.73×1.73=n²+2n

∴ n = 1

Vanadium atom must have one unpaired electron and thus its configuration is

₂₃V⁴⁺:1s²,2s²2p⁶,3s²3p⁶3d¹