* Valence Electrons: Chlorine has 7 valence electrons and needs one more to achieve a stable octet. Iron, depending on its oxidation state, can have varying valence electrons.

* Ionic Bonding: Chlorine and iron typically form an ionic bond rather than a covalent bond. This is because chlorine is highly electronegative and readily gains an electron to form a chloride ion (Cl-), while iron readily loses electrons to form a positively charged cation (Fe2+ or Fe3+).

* Electrostatic Attraction: The electrostatic attraction between the oppositely charged ions (Fe2+ or Fe3+ and Cl-) forms the ionic compound.

Divalent bonds are formed when two atoms share two electrons, creating a double bond. This typically occurs between nonmetals with similar electronegativity.

Therefore, the interaction between chlorine and iron is primarily ionic, not covalent, and a divalent bond does not occur.