Electrode
Contents
Key Stage 4
Meaning
An electrode is a conductor which passes an electrical current through a substance.
About Electrodes
- A negative electrode is referred to as the cathode.
- A positive electrode is referred to as the anode.
- Electrodes are used during electrolysis of ionic compounds.
- In electrolysis positive ions are attracted to the cathode where they gain electrons to become neutral atoms.
- In electrolysis negative ions are attracted to the anode where they lose electrons to become neutral atoms or compounds.
References
AQA
- Electrode, pages 154-7, GCSE Chemistry; Student Book, Collins, AQA
- Electrode; inert, pages 162-3, GCSE Chemistry; Student Book, Collins, AQA
- Electrode; negative, pages 157, 159, 160, 182, 185, GCSE Chemistry; Student Book, Collins, AQA
- Electrode; positive, pages 157, 169, 160, 182, 185, GCSE Chemistry; Student Book, Collins, AQA
- Electrodes, page 117, GCSE Chemistry, Hodder, AQA
- Electrodes, pages 104-108, 120-121, 123, GCSE Chemistry; Third Edition, Oxford University Press, AQA
- Electrodes, pages 132, 133, GCSE Combined Science; The Revision Guide, CGP, AQA
- Electrodes, pages 141- 146, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
- Electrodes, pages 166-171, 186-191, GCSE Chemistry, CGP, AQA
- Electrodes, pages 58, 59, 64, 65, GCSE Chemistry; The Revision Guide, CGP, AQA
- Electrodes; inert, pages 119-21, GCSE Chemistry, Hodder, AQA
Edexcel
- Electrodes, page 224, GCSE Combined Science, Pearson Edexcel
- Electrodes, page 80, GCSE Chemistry, Pearson, Edexcel
- Electrodes; reactions at, page 225, GCSE Combined Science, Pearson Edexcel
- Electrodes; reactions at, page 81, GCSE Chemistry, Pearson, Edexcel