Explain the terms
bidentate ligand

Explanation

Bidentate ( or didentate) : The ions or molecules having two donor atoms are called
Bidentate ligands. Eg : `{:(COO^(-)),(|),(COO^(-)):}" oxalate ion, "{:(CH_(2)overset(* *)NH_(2)),(|),(CH_(2)overset(* *)NH_(2)):}` ethylene diamine (en).