Back to Course IGCSE CHEMISTRY (demo) 0% Complete 0/0 Steps 2. Atoms, Elements & Compounds (DEMO) 7 Topics 2.1 Elements, compounds and mixtures (DEMO) 2.1.1 Elements (Demo) 2.1.2 Compounds (demo) 2.1.3 Mixtures (demo) 2.2 Atomic structure and the Periodic Table (DEMO) 2.2.1 The Structure of An Atom (DEMO) 2.2.2 The Proton Number and Mass Number (Demo) 3. Stoichiometry (DEMO) 1 Topic 3.1.0 Formulae (Demo) 6. Chemical Reactions (DEMO) 6 Topics 6.4.0 Redox Reactions (Demo) 6.4.1 Defining Oxidation (Demo) 6.4.2 Defining Reduction (Demo) 6.4.3 Redox and electron transfer (DEMO) 6.4.4 Defining redox in terms of electron transfer (DEMO) 6.4.5 Writing half-equations to show the electron transfer (DEMO) IGCSE CHEMISTRY (demo) 2. Atoms, Elements & Compounds (DEMO) Lesson 1 of 3 In Progress Next→ 2. Atoms, Elements & Compounds (DEMO) Lesson Content 0% Complete 0/7 Steps 2.1 Elements, compounds and mixtures (DEMO) 2.1.1 Elements (Demo) 2.1.2 Compounds (demo) 2.1.3 Mixtures (demo) 2.2 Atomic structure and the Periodic Table (DEMO) 2.2.1 The Structure of An Atom (DEMO) 2.2.2 The Proton Number and Mass Number (Demo)