In chemistry, a metal complex or coordination complex is a structure consisting of an ion or central atom, bonded to a surrounding array of anions or molecules (complexing agents ,ligands). The atom inside a ligand which is directly bonded to the central atom or ion is known as donor atom. Polydentate ligands (multiple bonded) can form a chelate complex. A ligand donates atleast one p... https://www.expertsmind.com/chemistry/coordination-compounds-homework-assignment-help.aspx