Malleable and Ductile.

Q9. Explain the meaning of malleable and ductile.
Ans. Metals can be hammered into thin sheets. This property of metal is known as the malleability. The metals showing this property are called malleable.
Metals can be drawn into wire. The ability of metals to be drawn into thin wire is called ductility and the metals showing this property are ductile. Example: Gold, silver, copper.
One gram of gold can be drawn into a wire of about 2 kilometer length.

Define Properties.

Q7. Define the following properties:

  1. Metallic Luster: Metals in their pure state having a shining surface is known as metallic luster.
  2. Malleability: Metals can be beaten into thin sheets without breaking.
  3. Ductility: The ability of metals to be drawn into thin wire.
  4. Sonorous: Ability to produce deep or ringing sound on striking with hard object.
  5. Brittle: Breaking easily when force is applied.