Pr
Praseodymium (Atomic Number 59)
Category: lanthanide | Period 6, Group 3 | Block: f
Soft rare earth metal creating intense yellow studio glass tints.
Atomic & Physical Constants
- Standard Atomic Weight:
- 140.907662 u
- Standard State Phase:
- Solid
- Electron Configuration:
- 2, 8, 18, 21, 8, 2
- Electronegativity (Pauling):
- 1.13
- Melting Point:
- 1208 K
- Boiling Point:
- 3403 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Didymium welder protective glass, permanent magnets, aircraft engines
Discovery History
Discovered by Carl Auer von Welsbach (1885).
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