Tungsten vs Curium

PropertyW TungstenCm Curium
Atomic number7496
SymbolWCm
NameTungstenCurium
Categorytransition-metalactinide
Standard Atomic Weight183.84 u247 u
Period67
Group6N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f145d4[Rn]7s25f76d1
Oxidation states[-4, -2, -1, 0, 1, 2, 3, 4, 5, 6][3, 4, 5, 6]
Electronegativity (Pauling)2.361.3
Electron affinity0.815 eV0.277 eV
Density1.930000e+4 kg/m³1.351000e+4 kg/m³
Melting point3421.85 °C1344.85 °C
Boiling point5554.85 °C3126.85 °C
Discovery year17811944