Atomic Number79Molar Mass196.97 gmol-1
Electron Configuration[Xe]4f145d106s1Normal Statesolid metal
Density @STP19.28 g cm-3Melting Point1064oC
Boiling Point2856oCStable Isotopes197Au
Atomic Radius144 pmIonic Radius91 (3+) pm
Electronegativity (Pauling)2.54Ionization Energy (1st)890 kJ mol-1
Ionization Energy (2nd)1980 kJ mol-1Ionization Energy (3rd)2900 kJ mol-1
Molar Heat Capacity25.4 J K-1mol-1Standard Molar Entropy47.4 J K-1mol-1
Enthalpy of Fusion12.7 kJ mol-1Enthalpy of Vapourization324.4 kJ mol-1
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