58 Ce 140.12
Cerium
Lanthanide
Cerium (Ce) is a chemical element with atomic number 58, classified as a lanthanide. At room temperature it is a solid. It was discovered in 1803 by Martin Heinrich Klaproth, Jöns Jacob Berzelius.
Properties
- Atomic number
- 58
- Atomic mass
- 140.12 u
- Category
- Lanthanide
- Group
- 0
- Period
- 6
- Block
- f-block
- Electron configuration
- [Xe] 4f¹ 5d¹ 6s²
- Phase at STP
- Solid
- Density
- 6.77 g/cm³
- Melting point
- 1068 K (794.9 °C)
- Boiling point
- 3716 K (3442.8 °C)
- Electronegativity
- 1.12
- Atomic radius
- 210 pm
- Ionization energy
- 5.539 eV
- Discovery
- 1803 · Martin Heinrich Klaproth, Jöns Jacob Berzelius
Common uses
Catalytic converters, glass polishing, lighter flints, self-cleaning ovens
Did you know?
Most abundant rare earth element and used in self-cleaning ovens.