Key term for Edexcel GCSE Chemistry, used in Formulae, Equations and Hazards.
Elements that exist naturally as pairs of atoms bonded together when not part of a compound (e.g., O₂, H₂, Cl₂).
Diatomic molecules appears in Edexcel GCSE Chemistry revision content for Formulae, Equations and Hazards, especially Formulae, Equations and Hazards and Balanced Chemical Equations.
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