Atomic number 58
Name Cerium
Atomic mass 140.116(1)
Electronic configuration [Xe] 4f1 5d1 6s2
Electronegativity 1.12
Atomic radius pm
Ion radius 102 (+3) pm
Van der Waals radius pm
Ionization energy 534 kJ/mol
Electron affinity -50 kJ/mol
Oxidation states 2, 3, 4
Standard physical state solid
Bonding type metallic
Melting point 1071 °C
Boiling point 3633 °C
Density 6.689 g/cm³
Type lanthanoid
Year discovered 1803