Atomic symbol - Pr
Atomic weight - 140.90765
Atomic number - 59
Electron configuration - 2-8-18-21-8-2
Oxidation states - +3
State of matter - solid
Heavy metal-brittle
Discovered in 1885 by Carl Auer von Welsbach
Boils at 3212 .C, melts at 931 .C

Notes:
Praseodymium is used in special alloys and glasses. It is moderately soft,
ductile, and malleable, and is a silvery color. Small amounts of praseodymium
are used in a rare-earth alloy used to make cigarette lighter flints and high-
strength, low-creep magnesium alloys used for jet-engine parts.