Band Theory Of Metals & Insultators:
+> Band theory deals with the concept of molecular orbitals from a mass of atoms combining in order to form a confirming band with groups of molecular orbitals that are extremely close in energy.
+> When a group of atoms with similar energy combine, their molecular orbitals begin to form a band. A band contains molecular orbitals with only small energy differences between them allowing the system to behave as a whole rather than individuals.
+> A simplified model and a more detailed model exists to help identify the properties these bands can represent. These theories can help
categorize the differences between insulators and metallic substances.