Metalls, non-metals and metalloids

Metalloids: elements who have metallic and non-metallicc properties

Alloys: metals that contain more Tham one element

Living things, plastic: non-metals

Metals

Good conductors of heat

Good conductors of electricity

Strong and tough

High melting and boiling points

Malleable

High density

Ductile

Sonorous

Metallic luster

Metallic elements

Iron, precious metals, copper, aluminium, tin, mercury and lead

Metal alloys

Steel, bronze, brass, solder, pewter

Non-metals

Poor conductors of electricity

Insulators

Poor conductors of heat

Weak and brittle

Low melting and boiling points

Low densities

Gases and lighter than air

Noble gases

Halogens

Nitrogen, Oxygen and Carbon

Wood, porcelain, plastic, glass, leather, rock

Metalloids

Solid at room temperature

Boron, arsenic, silicon, germanium, antimony, tellurium, polonium

Semi-conductors

Uses in electronics

They can behave as a metal or as a non-metal when reacting