Erbium vs Tungsten

← Back to Periodic Table
PropertyEr ErbiumW Tungsten
Atomic number6874
SymbolErW
NameErbiumTungsten
Categorylanthanidetransition-metal
Standard Atomic Weight167.259 u183.84 u
Period66
GroupN/A6
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f12[Xe]6s24f145d4
Oxidation states[0, 1, 2, 3][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)1.242.36
Electron affinity0.312 eV0.815 eV
Density9070 kg/m³1.930000e+4 kg/m³
Melting point1528.85 °C3421.85 °C
Boiling point2867.85 °C5554.85 °C
Discovery year18431781