Cerium vs Lutetium

PropertyCe CeriumLu Lutetium
Atomic number5871
SymbolCeLu
NameCeriumLutetium
Categorylanthanidelanthanide
Standard Atomic Weight140.116 u174.9668 u
Period66
GroupN/A3
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f15d1[Xe]6s24f145d1
Oxidation states[1, 2, 3, 4][0, 1, 2, 3]
Electronegativity (Pauling)1.121.27
Electron affinity0.955 eV0.346 eV
Density6770 kg/m³9840 kg/m³
Melting point797.85 °C1662.85 °C
Boiling point3423.85 °C3401.85 °C
Discovery year18011907