Cerium vs Seaborgium

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PropertyCe CeriumSg Seaborgium
Atomic number58106
SymbolCeSg
NameCeriumSeaborgium
Categorylanthanidetransition-metal
Standard Atomic Weight140.116 u271 u
Period67
GroupN/A6
Blockss
Phase at STPsolidN/A
Electron configuration[Xe]6s24f15d1[Rn]7s25f146d4
Oxidation states[1, 2, 3, 4][3, 4, 5, 6]
Electronegativity (Pauling)1.12N/A
Electron affinity0.955 eV0.85 eV
Density6770 kg/m³3.500000e+4 kg/m³
Melting point797.85 °C-273.15 °C
Boiling point3423.85 °C-273.15 °C
Discovery year18011974