This comprehensive OCR A Level Chemistry PowerPoint lesson explores dative covalent bonding, including coordinate bonds, electron-pair donation, dot-and-cross diagrams and worked examples.

Designed for OCR Chemistry A (H032/H432), Module 2: Foundations in Chemistry, this resource covers specification point 2.2.2(e)(iii) – Bonding and Structure. It is ideal for Year 12 students developing their understanding of covalent bonding and the formation of coordinate bonds in molecules and ions.

The lesson introduces a dative covalent bond as a covalent bond in which both electrons in the shared pair are supplied by the same atom. Students learn how dative bonds form through the donation of a lone pair of electrons, identifying electron-pair donors and acceptors and representing coordinate bonding using arrows.

The PowerPoint explores the formation of the ammonium ion (NH₄⁺), demonstrating how ammonia donates a lone pair to a hydrogen ion. Students learn to construct accurate dot-and-cross diagrams, correctly represent ionic charges and understand why dative bonds behave like ordinary covalent bonds once formed.

Further examples include the formation of tetrachloroaluminate ions (AlCl₄⁻), dative bonding in nitrate ions (NO₃⁻), and additional examples involving boron trifluoride, carbon monoxide and hydronium ions. Structured activities provide opportunities to apply these concepts to unfamiliar species.

Throughout the lesson, clear explanations, diagrams, guided examples and mini-whiteboard activities support understanding and assessment for learning. The resource includes a starter activity, key terminology, independent practice, knowledge checks and answers.

Supplied as an editable PowerPoint presentation (.pptx), this resource is suitable for classroom teaching, revision and consolidation of dative covalent bonding.

Last updated: November 2026.