1.1    Atoms and molecules

1.2    Mole Concept

1.3    Stoichiometry

2.1    Bohr's Atomic Model

2.2    Quantum Mechanical Model

2.3    Electronic Configuration

3.1    Classification of Elements

3.2    Periodicity

4.1    Lewis Structure

4.2    Molecular Shape and Polarity

4.3    Orbital Overlap and Hybridisation

4.4    Intermolecular Forces

4.5    Metallic Bond