Key term for OCR GCSE Chemistry B, used in Development of scientific theory.
The average mass of an atom of an element compared to 1/12th the mass of an atom of carbon-12.
Relative atomic mass (Aᵣ) appears in OCR GCSE Chemistry B revision content for Ideas about Science, especially Development of scientific theory and Use of models.
Ideas about Science
Development of scientific theory • Use of models
Ideas about Science
Data interpretation and conclusions • Significant figures
Chemical analysis
Stoichiometry calculations • Arithmetic computation
Chemical analysis
Stoichiometry calculations • Calculations from equations
Chemical analysis
Stoichiometry calculations • Mass to moles relationship
Chemical analysis
Stoichiometry calculations • Relative formula masses
Chemicals of the natural environment
Crude oil and hydrocarbons • Calculating empirical formulae
Chemicals of the natural environment
Crude oil and hydrocarbons • Empirical formula
Chemicals of the natural environment
Crude oil and hydrocarbons • Diagrammatic and numerical translation
Chemical patterns
The Periodic Table and elements • Mendeleev's arrangement
Chemical patterns
History of the atomic model • Calculating particle numbers
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