Praseodymium (Pr) is a chemical element with atomic number (Z) 59, group n/a, period 6, and atomic weight 140.908. The Praseodymium (Pr) is one of the Rare Earth Metals that is a soft, silvery and ductile metal, valued for its magnetic, electrical, chemical, and optical properties, used of the metal is in a pyrophoric alloy. (Refer to the Chemical Element; Periodic Table)
