OCR GCSE Chemistry A · J248
Specification C1.2d · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Subatomic ParticlesAt GCSE, these are usually compared using relative values because the actual charges and masses are extremely small.
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GCSE Chemistry · key term
A value that compares a particle's charge or mass with an agreed reference value rather than giving its absolute measurement.
Used by OCR
Specification C1.2d · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Subatomic ParticlesAt GCSE, these are usually compared using relative values because the actual charges and masses are extremely small.
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