Explanation
Metallic bonding is present between the atoms of a metal. It is formed as a result of the attraction between metal ions and delocalized electrons.
The metal atoms lose their valence electrons, these electrons move freely between the resultant positively charged metal ions. Hence these electrons are termed as delocalised.
Properties of metals
They are malleable: can be hammered into different shapes.
They are ductile: can be drawn into wires.
They are good electrical conductors due to availability of delocalised electrons. They are good heat conductors as well.
They have high and melting and boiling points.
They have high densities.