What type of bond occurs between metals and metals?

Metals are weird. Pure metals or metal alloys form metallic bonds. A metallic bond is best described as positively charged nuclei engulfed in a sea of free electrons. These is why metals are good conductors, as all if the non-bonded atomic orbitals start to overlap and create an energy band known as the conduction band. read more

However, metals that are coordinated with other metals in inorganic or organic complexes will covalently bond. This is usually a coordinated covalent bond, where one species is more of a nucleophile versus a scenario where the electrons are split between the two. read more