Question

What are metals? State their four properties. Also, name any four metals.

Answer 1

Metals - The group of elements that are mostly solids and show properties like lustre, malleability, ductility, etc.

The properties of metals are -

1. Malleability - The property of the substance by which it can be beaten into thin sheets. Metals are highly malleable and can be easily beaten into sheets.

For example - Aluminium foil.

2. Thermal Conductivity - The property of a substance by which it allows heat to pass through it. Metals are good conductors of heat.

For example - cooking pots are made of metals.

3. Electrical Conductivity - The property of a substance by which it allows electricity to pass through it. Metals are good conductors of electricity and allow the electric current to pass through them.

For example - Electric cables and wires are made of metals only.

4. Ductility - The property of substance by which it can be drawn into wires. Metals are highly ductile and can be easily stretched to make wires.

For example - wires made of copper and aluminium are used in electrical appliances.

Four examples of metals -

1. Iron
2. Copper
3. Sodium
4. Mercury