58 Ce
Lanthanide
Cerium
Most abundant rare earth.
Properties of Cerium
- Atomic number (Z)
- 58
- Symbol
- Ce
- Atomic mass
- 140.12 g/mol
- Category
- Lanthanide
- Group
- 3
- Period
- 6
- Electron configuration
- [Xe] 4f¹ 5d¹ 6s²
- Electronegativity (Pauling)
- 1.12
- Atomic radius
- 210 pm
- First ionization energy
- 534 kJ/mol
- Melting point
- 1068 K (794.9 °C)
- Boiling point
- 3716 K (3442.8 °C)
- Density
- 6.77 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1803
Frequently asked questions
What is Cerium?
Cerium (Ce) is a lanthanide, element number 58 on the periodic table. Most abundant rare earth.
What is the atomic number and atomic mass of Cerium?
Cerium has atomic number 58 and an atomic mass of about 140.12 g/mol.
What is the electron configuration of Cerium?
The electron configuration of Cerium is [Xe] 4f¹ 5d¹ 6s².
Where is Cerium on the periodic table?
Cerium sits in group 3, period 6, and is classified as a lanthanide.