58
Ce
140.12
Cerium
Element 58 · 140.12 u · f-block
lanthanide
The most abundant rare earth element. Used in catalytic converters, self-cleaning ovens, and lighter flints.
Phase (STP)
Solid
Melting Point
795 °C
Boiling Point
3443 °C
Density
6.77 g/cm³
Electronegativity
1.12
Atomic Radius
185 pm
Ionization Energy
534 kJ/mol
Electron Affinity
55 kJ/mol
Discovered
1803 · Jons Jacob Berzelius
Electron Configuration
[Xe] 4f1 5d1 6s2
Electron Orbitals
Drag to rotate · Pinch to zoom