- Atomic Radius (Å)
Cerium is a chemical element with symbol Ce and atomic number 58. It is a soft, silvery, ductile metal which easily oxidizes in air. Cerium was named after the dwarf planet Ceres (itself named after the Roman goddess of agriculture).
58
Atomic Number
140.12
Atomic Mass (u)
1071.15
Melting Point (K)
3716
Boiling Point (K)
6.77
Density (solid: g/cm³, gas: g/liter)
2.7
Atomic Radius (Å)
2.04
Covalent Radius (Å)
1.12
Electronegativity
5.54
First Ionization Energy (eV)
55
Electron Affinity
6
Number of Shells
2, 8, 18, 19, 9, 2
Electron Shell Occupations
0.19
Specific Heat (J/g)