Tellurium vs Cerium

PropertyTe TelluriumCe Cerium
Atomic number5258
SymbolTeCe
NameTelluriumCerium
Categorymetalloidlanthanide
Standard Atomic Weight127.6 u140.116 u
Period56
Group16N/A
Blockps
Phase at STPsolidsolid
Electron configuration[Kr]5s24d105p4[Xe]6s24f15d1
Oxidation states[-2, -1, 0, 1, 2, 3, 4, 5, 6][1, 2, 3, 4]
Electronegativity (Pauling)2.11.12
Electron affinity1.9708 eV0.955 eV
Density6232 kg/m³6770 kg/m³
Melting point449.51 °C797.85 °C
Boiling point987.85 °C3423.85 °C
Discovery year17821801