Edexcel ChemistryIGCSE 2021TopicalAcids, bases and salt Atomic structure Bonding Chemical formulae, equations and calculations ElectrolysisElements, compounds and mixtures Energetics Extraction and uses of metals Gas in the atmosphere Group 1 (alkali metals) Group 7 (halogens) Organic Chemistry Rates of reactionReactivity series Reversible reactions and equilibriaStates of matterThe Periodic Table