Periodic Table of Elements showing Praseodymium lanthanide elements


Atomic Number59
Molar Mass140.91 gmol-1
Electron Configuration[Xe]4f36s2
Normal Statesolid metal
Density @STP6.78 g cm-3
Melting Point931oC
Boiling Point3520oC
Stable Isotopes141Pr
Atomic Radius183 pm
Ionic Radius106 (3+) pm
Electronegativity (Pauling)1.13
Ionization Energy (1st)523 kJ mol-1
Ionization Energy (2nd)1018 kJ mol-1
Ionization Energy (3rd)2086 kJ mol-1
Molar Heat Capacity27.2 J K-1mol-1
Standard Molar Entropy73.2 J K-1mol-1
Enthalpy of Fusion11.3 kJ mol-1
Enthalpy of Vapourization332.6 kJ mol-1
[Back to Periodic table]

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