Plutonium (Pu) — Element 94: Properties & Data | Aladdin Scientific
Plutonium(Pu) — Element 94
Plutonium (Pu) is a actinide with atomic number 94 and atomic mass 244.064. It has melting point 913 K (640 °C), boiling point 3501 K (3228 °C), density 19.84 g/cm³. It sits in period 7 of the periodic table and was discovered in 1940.
Key facts
| Atomic mass | 244.0642 u |
|---|---|
| Electron configuration | [Rn]7s2 5f6 |
| Oxidation states | +6, +5, +4, +3 |
| Electronegativity (Pauling) | 1.28 |
| Atomic radius (van der Waals) | 243 pm |
| Ionization energy | 6.06 eV |
| Melting point | 913 K |
| Boiling point | 3501 K |
| Density | 19.84 g/cm³ |
| Standard state | Solid |
| Year discovered | 1940 |
Frequently asked questions
What is the electron configuration of plutonium?
The ground-state electron configuration of plutonium is [Rn]7s2 5f6.
What group and period is plutonium in?
Plutonium (Pu) is in period 7 (actinide series) of the periodic table, classified as a actinide.
What is the melting point of plutonium?
Plutonium melts at 913 K (640 °C).
What is the standard state of plutonium?
Plutonium 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: .