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
Element Girl Lightning, expressing joy over being asked to join the League. She is later inducted into the League alongside a new female Atom and Firestorm. Her relation to Metamorpho is unknown. However, she does reference him by first name. After the events of "Forever Evil", Element Woman joins the Doom Patrol. Prior to appearing in the mainstream DC Universe, Element Woman made her debut in the alternate "Flashpoint" universe. She first appears at a meeting of superhumans assembled by Cyborg with the intention of stopping an oncoming war between the Amazons and Atlanteans. She offers her help, but is dismissed by