Palladium is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys. Palladium is a rare and lustrous silvery-white metal. Palladium has the lowest melting point and is the least dense of platinum group metals. The primary use for palladium is in catalytic converters for the automotive industry.