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Complex ions, ligands and coordination number

Complex ions, ligands and coordination number

Common shapes of complex ions showing octahedral, tetrahedral, square planar and linear arrangements with coordination numbers and bond angles labelled

A complex ion has a central metal ion surrounded by ligands. Each ligand donates a lone pair to the metal ion to form a coordinate bond.

Shapes of complex ions (A-level only) Lesson

  1. A Level
  2. /Chemistry
  3. /Shapes of complex ions (A-level only)

Step-by-step lessons on AQA A Level Chemistry Shapes of complex ions (A-level only). Each one builds up to exam-style questions. Build confidence with atomic structure, bonding and moles calculations early on, since these underpin the more demanding organic mechanisms, equilibrium and practical-analysis topics that dominate Year 2.

Lessons