2  The nature of matter
States of matter
Solid
Liquid
Gas
Melting
Melting point
Freezing
Freezing point
Sublimation
Evaporation
Boiling
Boiling point
Condensation
Volatile
Volatility
Atmospheric pressure
Standard pressure
Pure substances
Mixture
Impurity
Heating and cooling curves
Solution
Solute
Solvent
Suspension
Miscible
Immiscible
Separating        and        purifying
substances
Decanting
Filtration
Residue
Centrifugation
Crystallisation
Distillation
Fractional distillation
Fractional column
Chromatography
Solvent front
Locating agent
Chromatogram


Identity
Solubility
Soluble
Insoluble
Saturated solution
Concentration
Atom
Molecule
Element
Compound
Synthesis reaction
Decomposition reaction
Lattices
Intermolecular   space
Diffusion
Dissolving
Absolute zero
Absolute temperature scale
Atomic structure
Subatomic particle
Proton
Neutron
Electron
Mass spectrometer
Relative atomic mass
Atomic number
Nucleon number
Mass number
Isotopes
Radioactive
Electron arrangements in atoms Energy levels
Bohr’s theory
Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium

reaction diffusion
Magnesium
Noble gases
Aluminium
The alkali metals
Silicon
The alkaline earth metals
Phosphorus
Halogen
Sulfur
Valency
Chlorine
Halides
Argon
Chemical bonding
Potassium
Diatomic molecule
Calcium
Metallic bonding
Metallic lattices
3 Elements and compounds
Covalent bonding
Periodic table
Simple molecules
Groups
Giant molecular lattices
Periods
Ion
Metals
Delocalised
Non-metals
Electrostatic forces
Alloys
Ionic bonding
Malleable
Covalent compounds
Ductile
Polyatomic ions
Metalloids
Chemical formula
Main-group elements
Crystal
Transition metals

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