Key term for Edexcel GCSE Chemistry, used in Group 7.
A positively charged ion formed when an atom (usually a metal) loses one or more electrons.
Cation appears in Edexcel GCSE Chemistry revision content for Groups in the Periodic Table, especially Group 7 and Reactions with Metals.
Groups in the Periodic Table
Reactions with Metals
Groups in the Periodic Table
Classification of Groups
Transition Metals, Quantitative Analysis and Equilibria
Suggested Practicals
Extracting Metals and Equilibria
Resistance to Oxidation
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Transition Metals, Quantitative Analysis and Equilibria
Transition Metals, Alloys and Corrosion • Suggested Practicals
