Give reason The majority of transition metals form complexes.
Transition metals are the d-block elements having the outer shell electronic configuration as ns2(n−1)d1 - 10ns2(n−1)d1 - 10 . These metal ions can easily form complexes with a group of negative ions or neutral molecules that have lone pairs of electrons. This is due to: the metals' small size and strong nuclear charge. Availability of empty d-orbitals with sufficient energy to accept ligand-donated lone pairs of electrons.
