The Formation of Ionic Bonds. How and When

SCHEME 8 The common cation and anion constituents of ionic bonds are the metals of groups lA—3A, which form cations, and the late nonmetals of groups 5A—7A, which form anions. Transition metals also form cations. 

SCHEME 8.3 Construction of ionic molecules by click followed by clack starting from neutral atoms (a) NaCl, (b) CaO, and (c) AICI3. The electron pairs that are connected by the click and are then transferred by the clack are marked in red. The clack is indicated by 

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