Bond polarity (3.1.3.6) | AQA A-level Chemistry - (7405) | KnowledgeSet

Bond polarity

Chemistry · A-Level · AQA · AQA A-level Chemistry - (7405) · Specification point · 3.1.3.6 · Physical chemistry · Bonding

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3.1.3.6 Bond polarity

Content	Opportunities for skills development
$Electronegativity as the power of an atom to attract the pair of electrons in a covalent bond. The electron distribution in a covalent bond between elements with different electronegativities will be unsymmetrical. This produces a polar covalent bond, and may cause a molecule to have a permanent dipole. Students should be able to: use partial charges to show that a bond is polar explain why some molecules with polar bonds do not have a permanent dipole.$

Content

Opportunities for skills development

Electronegativity as the power of an atom to attract the pair of electrons in a covalent bond. The electron distribution in a covalent bond between elements with different electronegativities will be unsymmetrical. This produces a polar covalent bond, and may cause a molecule to have a permanent dipole. Students should be able to: use partial charges to show that a bond is polar explain why some molecules with polar bonds do not have a permanent dipole.