Periodic Table of Elements showing Holmium lanthinide elements





Holmium

ElementHolmium
SymbolHo
Atomic Number67
Molar Mass164.93 g mol-1
Electron Configuration[Xe]4f116s2
Normal Statesolid metal
Density @STP8.8 g cm-3
Melting Point1474oC
Boiling Point2700oC
Stable Isotopes165Ho
Atomic Radius177 pm
Ionic Radius89 (3+) pm
Electronegativity (Pauling)1.23
Ionization Energy (1st)581 kJ mol-1
Ionization Energy (2nd)1139 kJ mol-1
Ionization Energy (3rd)2204 kJ mol-1
Molar Heat Capacity27.2 J K-1mol-1
Standard Molar Entropy75.3 J K-1mol-1
Enthalpy of Fusion17.2 kJ mol-1
Enthalpy of Vapourization251 kJ mol-1
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