Lutetium vs Copernicium

PropertyLu LutetiumCn Copernicium
Atomic number71112
SymbolLuCn
NameLutetiumCopernicium
Categorylanthanidetransition-metal
Standard Atomic Weight174.9668 u285 u
Period67
Group312
Blockss
Phase at STPsolidgas
Electron configuration[Xe]6s24f145d1[Rn] 7s2 5f14 6d10(predicted)
Oxidation states[0, 1, 2, 3][2, 4]
Electronegativity (Pauling)1.27N/A
Electron affinity0.346 eV-0.8 eV
Density9840 kg/m³1.400000e+4 kg/m³
Melting point1662.85 °C-273.15 °C
Boiling point3401.85 °C-165.15 °C
Discovery year19071996