The structure of metal consists of positive metal ions, arranged in a regular pattern, floating in a sea of delocalized electrons.

Metal atoms have the tendency to lose their valence electrons to form positive ions.

These valence electrons become delocalized and form a ‘sea of mobile electrons’ around the positive ions.

The strong electrostatic force of attraction between the positive metal ions and delocalized electrons form strong metallic bonds.

The layers of metal ions can slide over one another when sufficient force is applied.