| Praseodymium
|
| Name | Praseodymium
|
| Symbol | Pr
|
| Atomic number | 59
|
| Atomic mass | 140.90765 amu
|
| Normal state
| Solid
|
| Classification
| Metallic
|
| Crystal structure
| Hexagonal
|
| Color
| Silvery; can develop a green tarnich when exposed to air.
|
| 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.
|
