Question

What are the examples of the most malleable and ductile metals?

Answer 1

Hint :Metals are minerals or substances found below the surface of the earth that exist in the form of metal ore. Metals show some physical properties like malleability, ductility and conductivity. Usually, all metals are malleable and ductile.

Complete Step By Step Answer:
Malleability is the ability of the metal to be beaten into thin sheets. Malleability is directly proportional to temperature. This means that malleability increases with increases in temperature.
Ductility is the ability of the metal to be drawn into thin wire. Ductility is inversely proportional to temperature. The ductility of the metals decreases when the temperature increases because metals become weak at high temperature.
Gold and silver are found to be the most malleable and ductile metals
A single ounce of gold can often be beaten into a sheet measuring roughly 5 meters on a side.
Gold and silver in their pure state are extremely soft. Hence, they cannot be used in making objects in their pure state.
The fineness and purity of gold is measured in Karat and that of silver is measured in percentage.
Gold is used in making jewellery , awards and medals. It is also used in the medicinal industry.
Silver is used in making jewellery , mirrors , dental alloys , solder etc.

Note :
Atomic number of Gold is \[79\]and is represented by the symbol $ Au $ .It is one the higher atomic number elements that occurs naturally. Gold is considered a good conductor of heat and electricity. It is chemically less reactive. Atomic number of Silver is $ 47 $ and it is represented by the symbol $ Ag $ .It is a white lustrous metal. Silver is considered a good conductor of both heat and electricity.