Atoms and reactions definitions

Isotopes

Atomic number

Mass number

Ion

Relative Isotopic Mass

Relative molecular mass (Mr)

Relative formula mass

Amount of substance

Molar mass

Empirical formular

Molecule

Molecular formula

Molar volume

Concentration of solution

A standard solution

Species

Stoichiometry

Acid

Base

Alkali

A salt

Cation

Anion

Hydrated

Anhydrous

Water of crystallisation

Oxidation number

Oxidation

Reduction

Redox reaction