permanent dipole
What permanent dipole means in Chemistry A-Level, as defined for AQA, OCR.
Definitions of permanent dipole
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Reference: OCR
Arises from a difference in electronegativity between bonded atoms, with the bond dipole pointing towards the more electronegative atom.
A molecule has this when its arrangement is unsymmetrical so the dipoles do not cancel.
Topics that use permanent dipole
- Bond polarity (AQA A-Level)
- Bonding and structure (OCR A-Level)
Related terms
- Anomalous melting and boiling points
- Average bond enthalpy
- Averaging over similar compounds and its limitation
- Bond angles
- bond length and strength
- Bond polarity and lone pairs
- Bond polarity versus molecular polarity
- cancellation
Using permanent dipole in the exam
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