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) USS Athene (AKA-22) USS "Athene" (AKA-22) was an named after the minor planet "881 Athene," which in turn was named after the Greek goddess "Athena." She served as a commissioned ship for 20 months. "Athene" (AKA-22) was laid down on 20 January 1944 under a Maritime Commission contract (MC hull 1883) at Providence, R.I., by the Walsh-Kaiser Co., Inc.; launched on 18 June 1944; sponsored by Mrs. Emily Thornton; and acquired by the Navy and commissioned on 29 September 1944, Comdr. Edward R. Nelson, Jr., in command. On 10 October, the attack transport got underway for shakedown training in the