Praseodymium (Pr)
Praseodymium (Pr, element 59) is a lanthanide in period 6. Atomic mass 140.908, electron configuration [Xe] 4f³ 6s², uses and facts.
About Praseodymium
Praseodymium is a lanthanide with the symbol Pr and atomic number 59. It is a solid at room temperature, and it sits in period 6 of the periodic table. Praseodymium was discovered in 1885 by Carl Auer von Welsbach.
Praseodymium key facts
- Atomic number: 59
- Symbol: Pr
- Atomic mass: 140.908 u
- Category: lanthanide
- Group: none (f-block)
- Period: 6
- State at room temperature: solid
- Electron configuration: [Xe] 4f³ 6s²
- Electronegativity (Pauling): 1.13
- Melting point: 1208 K (934.85 °C)
- Boiling point: 3793 K (3519.85 °C)
- Density: 6.77 g/cm³
- Common oxidation states: +2, +3, +4
Electron configuration
The electron configuration of praseodymium is [Xe] 4f³ 6s². The part in brackets is the noble gas core; the rest shows how the outer electrons fill their subshells.
Uses of praseodymium
- Welder's goggles
- Magnets
- Aircraft engines
Did you know?
Praseodymium produces a vivid yellow-green color and is used in welder's goggles to filter out intense light.
Neighbouring elements
- Cerium (Ce)
- Neodymium (Nd)
- Lanthanum (La)
- Cerium (Ce)
- Neodymium (Nd)
- Promethium (Pm)
- Samarium (Sm)
- Europium (Eu)
- Gadolinium (Gd)
- Terbium (Tb)
Frequently asked questions
What is the atomic number of praseodymium?
The atomic number of praseodymium is 59, which means every praseodymium atom has 59 protons.
What is the electron configuration of praseodymium?
The electron configuration of praseodymium is [Xe] 4f³ 6s².
What group and period is praseodymium in?
Praseodymium is a lanthanide in period 6.
What state is praseodymium at room temperature?
Praseodymium is a solid at room temperature.
What is praseodymium used for?
Praseodymium is used for welder's goggles, magnets, aircraft engines.