Answer: An ion or molecule that donates a lone pair to the metal.
- A An ion or molecule that donates a lone pair to the metal
- B The central metal atom around which the structure is built
- C The overall charged species formed once the structure is assembled
- D A neutral complex with no net charge on the whole assembly
Correct answer: A. An ion or molecule that donates a lone pair to the metal
Explanation: Ligands are Lewis bases that donate electron pairs to the central metal atom/ion (Lewis acid).
The three common coordination geometries: octahedral (6 ligands), tetrahedral (4 ligands), and square planar (4 ligands in one plane).
Concept context
Study of compounds where a central metal atom is bonded to surrounding ligands. Covers nomenclature, types of isomerism, bonding theories (VBT, CFT), and applications in medicine, photography, and industry.