* Covalent Bonding: Involves the sharing of electrons between atoms. Freon (specifically, the common type R-12, which is dichlorodifluoromethane, CH₂Cl₂) consists of carbon, hydrogen, chlorine, and fluorine atoms. These atoms are all nonmetals, and nonmetals tend to form covalent bonds.

* Ionic Bonding: Involves the transfer of electrons from one atom to another, creating positively and negatively charged ions that attract each other. Freon does not have a significant difference in electronegativity between the atoms involved, making ionic bonding unlikely.

In summary: Freon's structure is based on the sharing of electrons, which is the defining characteristic of covalent bonding.