Delocalised electrons
What Delocalised electrons means in Chemistry GCSE, as defined for AQA.
Definitions of Delocalised electrons
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Reference: AQA
Electrons in a metal that are not attached to any particular ion and are free to move throughout the structure.
One electron from each carbon atom in graphite, which is free to move throughout each layer of hexagonal rings.
One electron from each carbon atom is delocalised, so graphite conducts electricity and is used for electrodes.
Outer-shell electrons that are not held by any one atom and are free to move through the whole structure.
Outer shell electrons that detach from the atoms and are free to move throughout the giant structure.
Electrons that are shared between atoms in metallic bonding and are not attached to any single atom.
Topics that use Delocalised electrons
- Chemical bonds (AQA GCSE)
- Graphite (AQA GCSE)
- Metallic bonding (AQA GCSE)
- Metals as conductors (AQA GCSE)
Related terms
- Covalent bonding
- Metallic bonding
- Alloys
- Charge balance
- Chemical bonding
- Electric current
- Electrical conductivity
- Electron sharing
Using Delocalised electrons in the exam
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