59 Pr
Lanthanide
Praseodymium
Used in aircraft engines.
Properties of Praseodymium
- Atomic number (Z)
- 59
- Symbol
- Pr
- Atomic mass
- 140.91 g/mol
- Category
- Lanthanide
- Group
- 3
- Period
- 6
- Electron configuration
- [Xe] 4f³ 6s²
- Electronegativity (Pauling)
- 1.13
- Atomic radius
- 247 pm
- First ionization energy
- 527 kJ/mol
- Melting point
- 1208 K (934.9 °C)
- Boiling point
- 3793 K (3519.8 °C)
- Density
- 6.773 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1885
Frequently asked questions
What is Praseodymium?
Praseodymium (Pr) is a lanthanide, element number 59 on the periodic table. Used in aircraft engines.
What is the atomic number and atomic mass of Praseodymium?
Praseodymium has atomic number 59 and an atomic mass of about 140.91 g/mol.
What is the electron configuration of Praseodymium?
The electron configuration of Praseodymium is [Xe] 4f³ 6s².
Where is Praseodymium on the periodic table?
Praseodymium sits in group 3, period 6, and is classified as a lanthanide.