Here's why:

* Metallic bonds are a type of chemical bond that occurs between metal atoms. They are characterized by a "sea" of delocalized electrons that are shared by all the atoms in the metal.

* This delocalization allows for the unique properties of metals, such as good electrical conductivity, high melting and boiling points, and malleability.

* The electrons in a metallic bond are not confined to individual atoms but can move freely throughout the entire metal lattice, giving metals their characteristic shine.

Let me know if you'd like more details on the properties of metallic bonds!