Edexcel IAL Chemistry A2 17.10 coordination number
Edexcel IAL Chemistry A2 17.10 coordination number
Count donor atoms bonded to the central ion, not just ligand molecules, and use bidentate ligands or structures to infer shape, charge and bond angle.
How this is tested
- Count coordination number from formulae, structures or dative-bond counts.
- Use bidentate ligand information to complete coordination number, shape or bond angle.
- Deduce complex-ion formulae from mole ratios and octahedral coordination.