addition of water in Steps 2 and 4 is likely to be fast, because of its high concentration):..PAGE:20 ... attachment to metal atoms are called Chelate ligand* ligand ; Ion or molecule that binds to a central metal ... metal ion is written first.Ex) tetraamminecopper(Ⅱ) sulfate, [Cu(NH3)4]SO4hexaamminecobalt(Ⅲ) c