cerium

Symbol: Ce
Atomic number: 58
Atomic weight: 140.116
Group:
Group name: Lanthanoid
Period: 6 (lanthanoid)
Block: f
CAS ID: 7440-45-1
Shell structure: 2.8.18.19.9.2
Electron configuration: [Xe].4f1.5d1.6s2
State: |standardstate|
Melting point: 1068 [or 795 °C (1463 °F)]
Boiling point: 3633 [or 3360 °C (6080 °F)]
Ionization energy/kJ per mol: 534.4
Common oxidation states: 4, and 3
Pauling electronegativity: 1.12