Unit I contains development of atomic structure by using Rutherford model and Bohr’s theory.

Unit II includes periodicity of elements which includes s, p, d and f  block element.

Unit III describes chemical bonding like ionic or covalent bonding by using Valence Bond Theory (VBT) and Molecular Orbital Theory (MOT).

Unit IV consist Oxidation-Reduction process or phenomena of different inorganic reactions.