96 Cm
Actinide
Curium
Named after the Curies.
Properties of Curium
- Atomic number (Z)
- 96
- Symbol
- Cm
- Atomic mass
- 247 g/mol
- Category
- Actinide
- Group
- 3
- Period
- 7
- Electron configuration
- [Rn] 5f⁷ 6d¹ 7s²
- Electronegativity (Pauling)
- 1.28
- Atomic radius
- —
- First ionization energy
- 581 kJ/mol
- Melting point
- 1613 K (1339.8 °C)
- Boiling point
- 3383 K (3109.8 °C)
- Density
- 13.51 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1944
Frequently asked questions
What is Curium?
Curium (Cm) is an actinide, element number 96 on the periodic table. Named after the Curies.
What is the atomic number and atomic mass of Curium?
Curium has atomic number 96 and an atomic mass of about 247 g/mol.
What is the electron configuration of Curium?
The electron configuration of Curium is [Rn] 5f⁷ 6d¹ 7s².
Where is Curium on the periodic table?
Curium sits in group 3, period 7, and is classified as a actinide.