59 Pr 140.907662
Praseodymium
LANTHANIDE
Phase: Solid
Discovered: Carl Auer von Welsbach
Block: F
Summary
Praseodymium is a chemical element with symbol Pr and atomic number 59. Praseodymium is a soft, silvery, malleable and ductile metal in the lanthanide group. It is valued for its magnetic, electrical, chemical, and optical properties.
Source: WikipediaPhysical Properties
Atomic Mass 140.907662 u
Density 6.77 g/cm³
Melting Point 1208 K
Boiling Point 3403 K