Metallic bonding is a type of chemical bond that occurs between metal atoms. In this bond, electrons are not bound to any specific atom but are free to move throughout the metal structure. This creates a "sea of electrons" that allows metals to conduct electricity and heat efficiently. The arrangement of metal atoms in a lattice structure contributes to the properties of metals, such as malleability and ductility. When force is applied, the layers of atoms can slide over each other without breaking the bond, allowing metals to be shaped into various forms without losing their strength.