Chemistry A-Level
delocalisation
What delocalisation means in Chemistry A-Level, as defined for AQA.
Definition of delocalisation
Check what you remember
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Reference: AQA
Electrons are no longer tied to any one pair of atoms but are spread in a ring of electron density above and below the plane.
Topics that use delocalisation
- Bonding (A-level only) (AQA A-Level)
Related terms
- bromine water test
- delocalisation energy
- energy of products
- equal bond lengths
- relative stability
- substitution over addition
- enthalpy of hydrogenation
- Kekulé model
Using delocalisation in the exam
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