Why are metals malleable and ductile?
Metals:
1.Metals are high electropositive elements with extra electrons in their valence shell and readily loose electrons to form cations.
2.Metals form metallic bond which forms a sea of electrons surrounded by positively charged metal cations held by electrostatic force of attraction. In metallic bonding all the metal cations have attraction to every electron in the sea of electrons making the entire metal substance stronger. This bonding holds atoms together even when deformed.
3.Metals when beaten with a hammer can be drawn into then sheets without getting broken due to the presence of free electrons in the metal crystal that helps in the spreading of metal ions called malleability.
4.Similarly, metals are able to drawn into thin wires on applying pressure called ductility.
Examples of metals:
Gold (Au), Silver (Ag), Iron (Fe) etc.