Praseodymium (Pr)
Praseodymium is used in high-strength magnets, aircraft engines, and to create a distinctive yellow-green glass.
Properties of Praseodymium
- Atomic number
- 59
- Category
- Lanthanide
- Atomic mass
- 140.91 u
- Electron configuration
- [Xe] 4f³ 6s²
- Melting point
- 1208 K (934.85 °C)
- Boiling point
- 3793 K (3519.85 °C)
- Density
- 6.773 g/cm³
- Electronegativity (Pauling)
- 1.13
- Appearance
- Grayish-white metal
- Discovered by
- Carl Auer von Welsbach (1885)
Facts about Praseodymium
- Praseodymium means "green twin" in Greek!
- Welder's goggles use praseodymium to protect eyes from bright light!
- Praseodymium gives glass a beautiful yellow-green color!
- Praseodymium is used in the strongest permanent magnets!