Discovered By: Wilhelm Hisinger, William Francis Hillebrand, Thomas H. Norton, Jons Jacob Berzelius
Discovery year: 1803

The following table showing some properties of Cerium(Ce):

Table Example
Atomic number 58
Group n/a
Period 6
Block f
Electrons 58
Protons 58
Neutrons 82
Atomic weight 140.116
Oxidation states +3, +4
Ionic charge Ce^3+


Table Example
Electrons per shell K2 L8 M18 N19 O9 P2
Electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^1 5d^1
Covalent radius 204 pm
Boiling point 3360°C
Melting point 798°C
Neel point 12.5 K
Phase Solid
Fusion heat 5.5 kJ.mol^-1
Thermal expansion 6.3*10^-6
Vaporization heat 350 kJ.mol^-1


Table Example
Color Silver
Brinell hardness 412 MPa
Density 6689 kg.m^-3
Liquid density 6550 kg.m^-3
Mohs hardness 2.5
Molar volume 2.095*10^-5 m^3.mol^-1
Poisson ratio 0.24
Shear modulus 14 GPa
Sound speed 2100 m.s^-1
Vickers hardness 270 MPa


Table Example
Young's modulus 34 GPa
Electrical type Conductor
Magnetic type Paramagnetic
Volume magnetic susceptibility 1.416*10^-3
Resistivity 7.4*10^-7 Ohm.m
Superconducting point 0.022 K
Electronegativity 1.12
Valence 4
Electron affinity 50 kJ.mol^-1
First ionization energy 534.4 kJ.mol^-1
Radioactive No
Neutron cross section 0.6 barn