which-of-the-following-best-describes-a-ligand-in-the-context-of-complex-ions

Question

Which of the following best describes a ligand in the context of complex ions?

Accepted Answer

A Lewis base that donates lone pairs to metal cations.

Answer

A Lewis acid that accepts lone pairs from metal cations.

Answer

An electron-deficient species that forms covalent bonds with metal cations.

Answer

A molecule that donates protons to metal cations.