AQA GCSE Chemistry · 8462
Specification 4.1.1.6 · Paper 1
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GCSE Chemistry · key term
The proportion of an element's atoms that are a particular isotope, often expressed as a percentage.
Used by AQA and Edexcel
Specification 4.1.1.6 · Paper 1
Specification 1.11 · Paper 1, Paper 2
The proportion of a sample made up of a particular isotope.
Revise: Relative Atomic MassesThe proportion belonging to each isotope is its isotopic abundance. The isotopes are not necessarily present in equal proportions.
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