Cerium
CHEMICAL ELEMENT WITH THE ATOMIC NUMBER OF 58
Element 58; Cerous; User:Double sharp/Cerium; Ce (element); Cerium compound; History of cerium
·noun A rare metallic element, occurring in the minerals cerite, allanite, monazite, ·etc. Symbol Ce. Atomic weight 141.5. It resembles iron in color and luster, but is soft, and both malleable and ductile. It tarnishes readily in the air.