Bond Builder

Build the electrons, bonds and charges yourself

Work from electron transfer or sharing rather than recognising a finished diagram. Ionic, single, multiple and dative bonding are kept separate until the mixed challenge.

BoardAQA

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RepresentationLines + electrons

IonicElectron transfer forms ions. The ionic bond is the electrostatic attraction between oppositely charged ions.

CovalentA shared pair of electrons forms a covalent bond. Multiple bonds contain more than one shared pair.

DativeBoth electrons in the shared pair come from one atom. Draw the arrow from electron-pair donor to acceptor.