Praseodymium

Praseodymium
Properties
Atomic symbol	Pr
Atomic number	59
Classification	Metallic
Atomic mass	140.90765 amu
Other Information
Date of discovery	1885
Name of discoverer	Baron Carl Auer von Welsbach
Name origin	From the Greek prasios, meaning green, and didymos, meaning twin.
Uses	Used as an alloying agent with magnesium to create high-strength metals for use in aircraft engines; Cores of carbon arc lights, used in the film industry for studio lighting and projector lights; Praseodymium compounds colour glasses and enamels yellow.
Obtained from	Obtained from monazite and bastnasite ores.