Atomic Number74Molar Mass183.85 gmol-1
Electron Configuration[Xe]4f145d46s2Normal Statesolid metal
Density @STP19.3 g cm-3Melting Point3422oC
Boiling Point5555oCStable Isotopes180W, 182W, 183W, 184W, 186W
Atomic Radius141 pmIonic Radius62 (6+) pm
Electronegativity (Pauling)2.36Ionization Energy (1st)770 kJ mol-1
Ionization Energy (2nd)1700 kJ mol-1Ionization Energy (3rd)2300 kJ mol-1
Molar Heat Capacity24.3 J K-1mol-1Standard Molar Entropy32.6 J K-1mol-1
Enthalpy of Fusion35.2 kJ mol-1Enthalpy of Vapourization799.1 kJ mol-1
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