Select the correct answer: Non-sonorous metal: Lustrous non-metal:
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and coloured. Name a lustrous non-metal.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and coloured. Name a non-metal which is required for combustion.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and coloured. Name a non-metal other than carbon which shows allotropy.