Malleability is the property of a metal by virtue of which it can be beaten into thin sheets and foils.
Gold and silver are the most malleable metals.
Ductility is the property of a metal by virtue of which it can be drawn into wires.
For example, copper and aluminium are both malleable and ductile.
Important physical properties of metal.
(i) Conduction of heat and electricity: Metals are good conductors of heat and electricity.
(ii) Metallic lustre: Metals have shining surface.
(iii) Strength: Metals have high tensile strength.
(iv) Melting points and boiling points: Except sodium and potassium, metals have very high melting points and boiling points. Iron melts at 1539°C.
(v) Malleability and ductility: Metals can be drawn into thin wires (ductile) and can also be beaten into thin sheets with a hammer (malleable).
(vi) Densities: Except sodium and potassium, metals are quite hard and have high densities.
D.
aqua regia.