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- PRASEODYMIUM
- 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.
-