Explain the following term with an example: Hexadentate ligands.

(N/A) Hexadentate ligands: These ligands have $six$ donor atoms and form $six$ coordinate bonds with a metal ion.
Example: Ethylenediamine tetraacetate $(EDTA^{4-})$. The structure shows the $six$ donor atoms (two nitrogen atoms and four oxygen atoms) labeled $1$ to $6$.