Period 5 element and because of its rarity, rhodium is usually alloyed with platinum or palladium and applied in high-temperature and corrosion-resistive coatings. White gold is often plated with a thin rhodium layer to improve its optical impression while sterling silver is often rhodium plated for tarnish resistance. Rhodium detectors are used in nuclear reactors to measure the neutron flux level. Palladium is a chemical element with the chemical symbol Pd and an atomic number of 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
USS Athene (AKA-22) Task Force 1, which was the atomic bomb test unit at Bikini Atoll. Following her return from Bikini, "Athene" was decommissioned at Pearl Harbor on 17 June 1946. Her name was struck from the Navy list on 1 August 1947, and the ship was transferred to the Maritime Commission on 23 September 1947. She was sold in 1960 to the Union Minerals and Alloy Corp., of New York City, and scrapped. Athene earned two battle stars for her World War II service. USS Athene (AKA-22) USS "Athene" (AKA-22) was an named after the minor planet "881 Athene," which in turn