Predict the
geometry of the complex ion Since the coordination number of Mn
2+ ion in the complex ion is 4, it
will be either tetrahedral (sp
3 hybridisation) or square planar (dsp
2
hybridisation) But the fact that the magnetic moment of the complex
ion is 5 9 BM, it should be tetrahedral in shape rather than square
planar because of the presence of five unpaired electrons in the d orbitals