Palladium Palladium Palladium is a chemical element with symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. More than half the supply of palladium
Kirk (placename element) Kirk (placename element) Kirk is found as an element in many place names in Scotland, England, and North America. It is derived from "kirk", meaning "church". In Scotland, it is sometimes an English translation from a Scots Gaelic form involving "cille" or "eaglais", both words for 'church'. Rarely it is found in Anglicisations of Continental European placenames which originally had Dutch "kerk" or a related form. Kirk by itself is the name of two places: More usually it is an element in a compound name. The remainder of this article is a list of some of these. In Scotland In