- 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 u Atomic Mass
1071.15 K Melting Point
3716 K Boiling Point
6.77 g/cm³ Density
2.7 Å Atomic Radius
2.04 Å Covalent Radius
1.12 Electronegativity
5.54 eV First Ionization Energy
55 Electron Affinity
6 Number of Shells
2, 8, 18, 19, 9, 2 Electron Shell Occupations
0.19 J/g Specific Heat