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Chemistry
Key terms
Chemical species

GCSE Chemistry · key term

Chemical species

Definition

Any atom, molecule, ion or formula unit represented in a chemical calculation or equation.

Used by OCR

How each exam board covers it

OCR GCSE Chemistry A · J248

Specification C2.1c · Paper 1 (Foundation), Paper 3 (Higher)

Revise: Relative Formula Mass

OCR Chemistry A past papers

Related key terms

Coefficient
Relative atomic mass (Aᵣ)
Relative formula mass (Mᵣ)
Relative molecular mass (Mᵣ)

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Chemical species — OCR GCSE Chemistry A Definition | GradeGen