Metallic Bond A metallic bond is a type of chemical bonding that occurs between metal atoms. In metallic bonding, the valence electrons (outermost electrons) of metal atoms are delocalized and not associated with any particular atom. Instead, they form a "sea" of electrons that is shared among all the metal atoms in the material. The metallic bond arises from the electrostatic attraction between the positively charged metal ions (cations) and the negatively charged delocalized electrons. The metal atoms in a metallic solid or metal alloy are held together by this strong bond.