Identify the hybridization in central metal of [ Fe ( CO )₅] complex.

Step-by-step solution

In [Fe(CO)₅] , the central metal atom is Fe and its oxidation state is 0 . The ground state electronic configuration of Fe is [Ar] 3d^6 4s^2 . CO is a strong field ligand, which causes the pairing of electrons. The two 4s electrons shift to the 3d subshell and pair up, resulting in a 3d^8 configuration. Four 3d orbitals are completely filled and one 3d orbital is left empty. To accommodate the five electron pairs from the five CO ligands, one 3d , one 4s , and three 4p orbitals hybridize. Therefore, the hybridizati