The World of Metals and Non-metals — Important Questions

Copper, Iron, Aluminum

Copper, iron, and aluminum are metals and are good conductors of electricity. Sulfur and coal are non-metals and poor conductors.

Lustrous appearance, Good heat conductors, Malleable

Metals are lustrous, good conductors of heat, and malleable. They are not brittle - that's a property of non-metals like coal and sulfur.

Ductility

Ductility is the property that allows metals to be drawn into wires. This is why we have copper and aluminum wires for electrical fittings.

Oxygen, Carbon, Sulfur

Oxygen, carbon, and sulfur are non-metals. They are poor conductors and don't show metallic properties. Iron and copper are metals.