The element is a silvery-white metal, it does not tarnish in air, and it is the least dense and lowest melting of the platinum group of metals. When annealed, it is soft and ductile; cold-working greatly increases its strength and hardness. Palladium is attacked by nitric and sulfuric acid.
Melting point: 1554.9 °C Boiling point: 2963 °C
A powder is a solid material with a defined size range.