Q7. Define the following properties:
- Metallic Luster: Metals in their pure state having a shining surface is known as metallic luster.
- Malleability: Metals can be beaten into thin sheets without breaking.
- Ductility: The ability of metals to be drawn into thin wire.
- Sonorous: Ability to produce deep or ringing sound on striking with hard object.
- Brittle: Breaking easily when force is applied.