Achemical bond forms when the of one element interact(s) with another element.

Answer;

Atom

A chemical bond forms when the atom of one element interact(s) with an atom of another element.

Explanation;A chemical bond is an attraction between atoms, ions or molecules that enables the formation of chemical compounds.There are several types of chemical bonds, they include;Ionic bonding which involves the transfer of an electron, where one atom gains an electron while one atom loses an electron.Covalent bond which involves the sharing of electrons between two atoms. Polar bond and hydrogen bond among others

Ibelieve the answer is d