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Score full marks on transition metals: Werner's primary/secondary valencies, coordination number, and IUPAC nomenclature rules.
Coordination chemistry questions are formulaic once you master the IUPAC naming convention for complexes.
Name ligands alphabetically before the central metal atom. Use Greek prefixes (di, tri) for simple ligands and bis, tris for chelating ligands. If the coordination complex is anionic, the metal ends in the suffix -ate (e.g. Ferrate, Cuprate) followed by oxidation state in Roman numerals.
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