Pallas was the Greek goddess of wisdom. Sources Discovered in 1803 by Wollaston, Palladium is found with platinum and other metals of the platinum group in placer deposits of Russia, South America, North America, Ethiopia, and Australia. It is also found associated with the nickel-copper deposits of South Africa and Ontario. Palladium's separation from the platinum metals depends upon the type of ore in which it is found. The element is a steel-white metal, it does not tarnish in air, and it is the least dense and lowest melting of the platinum group of metals.
Palladium is attacked by nitric and sulfuric acid.
It is not yet clear if this is a true compound. Hydrogen readily diffuses through heated palladium, providing a means of purifying the gas. Uses Finely divided palladium is a good catalyst and is used for hydrogentation and dehydrogenation reactions. It is alloyed and used in jewelry trades. White gold is an alloy of gold decolorized by the addition of palladium.