Curium (Cm) — Element 96: Properties & Data | Aladdin Scientific
Curium(Cm) — Element 96
Curium (Cm) is a actinide with atomic number 96 and atomic mass 247.07. It has melting point 1618 K (1345 °C), boiling point 3400 K (3127 °C), density 13.51 g/cm³. It sits in period 7 of the periodic table and was discovered in 1944.
Key facts
| Atomic mass | 247.0703 u |
|---|---|
| Electron configuration | [Rn]7s2 5f7 6d1 |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.3 |
| Atomic radius (van der Waals) | 245 pm |
| Ionization energy | 6.02 eV |
| Melting point | 1618 K |
| Boiling point | 3400 K |
| Density | 13.51 g/cm³ |
| Standard state | Solid |
| Year discovered | 1944 |
Frequently asked questions
What is the electron configuration of curium?
The ground-state electron configuration of curium is [Rn]7s2 5f7 6d1.
What group and period is curium in?
Curium (Cm) is in period 7 (actinide series) of the periodic table, classified as a actinide.
What is the melting point of curium?
Curium melts at 1618 K (1345 °C).
What is the standard state of curium?
Curium 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: .