Band Theory of Solids, Classification of Crystals on the Basis of Bonding, Conductometric Titrations and Potentiometric Titrations
Band theory of solids Band theory of solids describes the quantum state that an electron takes inside a metal solid. Every molecule comprises various discrete energy levels. The way electrons behave inside a molecule is well explained through band theory. Band Theory was developed from the knowledge gained during the quantum revolution in science. In 1928, Felix Bloch applied quantum theory to solids. In atoms, electrons are filled in respective energy orbits following Pauli’s exclusion principle. Two atomic orbitals combine to form a molecular orbit with two distinct energy levels. In solids, 10 23 stacked up lines confined in a tiny space would look like a band. Thereby forming an energy continuum called energy bands. Band theory helps to visualize the difference between conductor, semiconductor, and an insulator by plotting available energies for an electron in a material. Energy Bands in Solids: In band theory of solids, there are many energy bands but the following a...
