Chemistry GCSE
Atomic number ordering
What Atomic number ordering means in Chemistry GCSE, as defined for AQA.
Definition of Atomic number ordering
Check what you remember
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Reference: AQA
Elements are arranged in order of atomic number, and after a set number of elements a new period begins.
Topics that use Atomic number ordering
- The periodic table (AQA GCSE)
Related terms
- Atomic number
- groups
- Ion formation
- Outer shell electrons
- Prediction from patterns
- Reactivity trends
- Atomic (proton) number
- Group
Using Atomic number ordering in the exam
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