IGCSE Chemistry Glossary
All 189 key terms in the 0620 syllabus, grouped by topic, each with a clear definition and links to worked examples. Jump to a topic below, or click any term for the full entry.
States of Matter
Back to top ↑Atoms, Elements and Compounds
Back to top ↑- Aqueous
- Atom
- Atomic Number
- Cation and anion
- Compound
- Coordinate Bond
- Covalent Bond
- Delocalised Electrons
- Dot-and-Cross Diagram
- Electron
- Electron Configuration
- Electron Shell
- Electronegativity
- Element
- Giant Covalent Structure
- Giant Ionic Structure
- Intermolecular Forces
- Ion
- Ionic Bond
- Isotope
- Lattice
- Mass Number
- Metallic Bonding
- Mixture
- Molecule
- Neutron
- Nucleus
- Proton
- Proton Number
- Valency
Stoichiometry
Back to top ↑Electrochemistry
Back to top ↑Chemical Energetics
Back to top ↑Chemical Reactions
Back to top ↑- Activation Energy
- Catalyst
- Catalyst Effect on Rate
- Chemical Change
- Collision Theory
- Concentration Effect on Rate
- Decomposition
- Equilibrium
- Le Chatelier's Principle
- Oxidation
- Oxidation Number
- Oxidising Agent
- Physical Change
- Rate of Reaction
- Redox
- Reducing Agent
- Reduction
- Reversible Reaction
- Surface Area
- Temperature Effect on Rate
- Thermal Decomposition
- Word Equation
Acids, Bases and Salts
Back to top ↑The Periodic Table
Back to top ↑Metals
Back to top ↑Chemistry of the Environment
Back to top ↑Organic Chemistry
Back to top ↑Experimental Techniques and Chemical Analysis
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