Praseodymium (Pr) — Element 59: Properties & Data | Aladdin Scientific
Praseodymium(Pr) — Element 59
Praseodymium (Pr) is a lanthanide with atomic number 59 and atomic mass 140.908. It has melting point 1204 K (931 °C), boiling point 3793 K (3520 °C), density 6.77 g/cm³. It sits in period 6 of the periodic table and was discovered in 1885.
Key facts
| Atomic mass | 140.9077 u |
|---|---|
| Electron configuration | [Xe]6s2 4f3 |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.13 |
| Atomic radius (van der Waals) | 239 pm |
| Ionization energy | 5.464 eV |
| Melting point | 1204 K |
| Boiling point | 3793 K |
| Density | 6.77 g/cm³ |
| Standard state | Solid |
| Year discovered | 1885 |
Frequently asked questions
What is the electron configuration of praseodymium?
The ground-state electron configuration of praseodymium is [Xe]6s2 4f3.
What group and period is praseodymium in?
Praseodymium (Pr) is in period 6 (lanthanide series) of the periodic table, classified as a lanthanide.
What is the melting point of praseodymium?
Praseodymium melts at 1204 K (931 °C).
What is the standard state of praseodymium?
Praseodymium is a solid at standard temperature and pressure.
Related elements
About this data: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .