Here's why:
* Metallic bonding is a unique type of bonding specific to metals. It involves a "sea" of delocalized electrons that are shared by all the metal atoms in the structure. These electrons are not bound to any specific atom and can move freely throughout the entire metal lattice.
* Electrostatic attraction: The positive metal ions are held together by the strong electrostatic attraction to this "sea" of delocalized electrons. This strong attraction is what gives metals their characteristic properties like high electrical conductivity, malleability, and ductility.
While other intermolecular forces like Van der Waals forces might play a minor role, they are negligible compared to the strength of metallic bonding within a metal wire.
