Question

Band theory is an extension of molecular orbital theory. According to band theory, atomic orbitals between atoms in a sample form a nearly continuous band of molecular orbitals. In a metal, the bottom half of the band is composed of bonding molecular orbitals and the top half of the band Is composed of anti-bonding molecular orbitals. Transition metals from the 4th period have a band of molecular orbitals formed from a composite of 4s and 3d orbitals. Metallic properties, including melting point, ductility, and conductivity, can be predicted by the degree to which the bonding and anti-bonding portions of the band are filled. Match the diagram below to the transition metal it represents.

Answer 1

Solution :-

following image shows the classification of the element with the band theory prediction of the energy and band gap