Atomic Number66Molar Mass162.5 g mol-1
Electron Configuration[Xe]4f106s2Normal Statesolid metal
Density @STP8.53 g cm-3Melting Point1412oC
Boiling Point2567oCStable Isotopes156Dy, 158Dy, 160Dy, 161Dy, 162Dy, 163Dy, 164Dy
Atomic Radius177 pmIonic Radius91 (3+) pm
Electronegativity (Pauling)1.22Ionization Energy (1st)572 kJ mol-1
Ionization Energy (2nd)1126 kJ mol-1Ionization Energy (3rd)2200 kJ mol-1
Molar Heat Capacity27.7 J K-1mol-1Standard Molar Entropy75.6 J K-1mol-1
Enthalpy of Fusion17.2 kJ mol-1Enthalpy of Vapourization293 kJ mol-1
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