Chemistry GCSE
Variable oxidation states
What Variable oxidation states means in Chemistry GCSE, as defined for AQA.
Definition of Variable oxidation states
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Reference: AQA
Many transition elements form ions with different charges, for example iron forms Fe²⁺ and Fe³⁺ and copper forms Cu⁺ and Cu²⁺.
Topics that use Variable oxidation states
- Typical properties (AQA GCSE)
Related terms
- Catalysis in industrial and laboratory reactions
- Coloured compounds
- Coloured transition element compounds
- Transition metal chemistry
- Catalysis
- Ions with different charges
Using Variable oxidation states in the exam
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