1.1 Introduction1.2 What is Matter?1.3 Physical Nature of Matter 1.4 Characteristics of Particles of Matter1.5 Properties of Solid State2.1 Introduction 2.2 Pure Substances2.3 Classification of Pure Substances2.4 Physical Properties of Metals 2.5 Physical Properties of Non-metals3.1 Introduction 3.2 History of atoms and molecules3.3 Laws of Conservation of Mass (Part 1)3.4 Laws of Conservation of Mass (Part 2)4.1 Introduction 4.2 Existence of charged particle in atom4.3 Discovery of Electron4.4 Discovery of Proton4.5 Thomson’s Atomic Model 
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