Question

Explain why transition metals form complex compounds

Answer 1

Answer:

Due to availability of vacant d orbitals.

Explanation:

Presence of 5 d orbitals, which can accommodate a total of 10 electrons, in each transition metal atom helps it accept the electrons donated by the electron rich ligands, since the donated electrons can be accommodated in the vacant d orbitals of the transition metal atom.

Also, due to availability of electrons in the d orbitals for the transition elements help them form bonds with the electron deficient ligands.

Thus, on coordination with the ligands, metal centre gets saturated and forms stable complexes with the ligands.

Answer 2

Answer:

The reason transition elements form complexes because they contain vacant d-orbitals ,so that they can accommodate electrons of other elements and form bonds. Transition elements have variable oxidation state like from +2 to +6 which, shows its capacity to form bonds.