Rhodium

ElementRhodiumSymbolRh
Atomic Number45Molar Mass102.91 gmol-1
Electron Configuration[Kr]4d85s1Normal Statesolid metal
Density @STP12.42 g cm-3Melting Point1964oC
Boiling Point3695oCStable Isotopes103Rh
Atomic Radius134 pmIonic Radius75 (3+) pm
Electronegativity (Pauling)2.28Ionization Energy (1st)720 kJ mol-1
Ionization Energy (2nd)1744 kJ mol-1Ionization Energy (3rd)2997 kJ mol-1
Molar Heat Capacity25 J K-1mol-1Standard Molar Entropy31.5 J K-1mol-1
Enthalpy of Fusion21.55 kJ mol-1Enthalpy of Vapourization495.4 kJ mol-1
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