Very Short Question and Answers - Physical Properties of Metals and Non-Metals

Malleability is the property of metals by which they can be hammered or beaten into thin sheets without breaking.

Copper is ductile and a good conductor of electricity, making it suitable for electrical wires.

Sodium (Na) is a soft metal that can be cut with a knife.

Metals are called sonorous because they produce a ringing sound when struck.

Non-metals are generally dull and brittle.

Diamond (an allotrope of carbon) is the hardest natural substance.

Iodine is a non-metal that is lustrous (shiny).

Mercury is an exception because it is a liquid at room temperature, unlike most metals which are solids.

Graphite (an allotrope of carbon) can conduct electricity.

Gold and silver are highly malleable metals.

Non-metals like sulphur are brittle and will break or snap instead of being drawn into wires.

Copper and its alloys like bronze are used for bells because they are sonorous.

Metals generally have higher densities compared to non-metals.

Copper is a reddish colored metal, and sulphur is a yellow colored non-metal.

Non-metals usually have weak forces between their molecules, resulting in low melting and boiling points.

Mercury is the metal with a low melting point and is liquid at room temperature.

Ductility allows metals to be drawn into wires. Examples: copper and aluminium.

Utensils are made from metals because metals are good conductors of heat and have high melting points.

Graphite is an exception because it conducts electricity, unlike most non-metals.

Metals are malleable and ductile, while non-metals are brittle and neither malleable nor ductile.