atomic weight
What atomic weight means in Combined Science GCSE, as defined for AQA.
Definitions of atomic weight
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Reference: AQA
The quantity by which early periodic tables arranged elements, though following its strict order could place elements in inappropriate groups.
The mass of an atom relative to a standard, which early scientists could measure from chemical reactions.
Topics that use atomic weight
- Development of the periodic table (AQA GCSE)
Related terms
- Atomic number
- Development of the periodic table
- Inappropriate groups
- Isotopes
- law of octaves
- Mendeleev's periodic table
- Mendeleev's table
- Patterns in the periodic table
Using atomic weight in the exam
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