Europium vs Seaborgium

PropertyEu EuropiumSg Seaborgium
Atomic number63106
SymbolEuSg
NameEuropiumSeaborgium
Categorylanthanidetransition-metal
Standard Atomic Weight151.964 u271 u
Period67
GroupN/A6
Blockss
Phase at STPsolidN/A
Electron configuration[Xe]6s24f7[Rn]7s25f146d4
Oxidation states[0, 2, 3][3, 4, 5, 6]
Electronegativity (Pauling)N/AN/A
Electron affinity0.116 eV0.85 eV
Density5240 kg/m³3.500000e+4 kg/m³
Melting point821.85 °C-273.15 °C
Boiling point1528.85 °C-273.15 °C
Discovery year18961974