Physical Properties of Metals:
Hardness: Most of the metals are hard, except alkali metals, such as sodium, potassium, lithium, etc. Sodium, potassium, lithium etc. are very soft metals, these can be cut using knife.
Strength: Most of the metals are strong and have high tensile strength. Because of this big structures are made using metals, such as copper and iron.
State: Metals are solid at room temperature except mercury.
Sound: Metals produce ringing sound, so, metals are called sonorous. Sound of metals is also known as metallic sound. This is the cause that metal wires are used in making musical instruments.
Conduction: Metals are good conductor of heat and electricity. This is the cause that electric wires are made of metals like copper and aluminium.
Malleability: Metals are malleable. This means metals can be beaten into thin sheet. Because of this property iron is used in making big ships.
Ductility: Metals are ductile. This means metals can be drawn into thin wire. Because of this property wires are made of metals.
Melting and boiling point: Metals have generally high melting and boiling points.
Density: Most of the metals have high density.
Color: Most of the metals are silvery white or grey in color; but gold and copper show different color.
