Periodic Table of Elements showing actinide elements


Atomic Number95
Molar Mass241.06 g mol-1
Electron Configuration[Rn]5f77s2
Normal Statesolid metal
Density @STP13.67 g cm-3
Melting Point1176oC
Boiling Point2011oC
Stable Isotopesnone
Atomic Radius184 pm
Ionic Radius107 (3+) pm
Electronegativity (Pauling)1.3
Ionization Energy (1st)578 kJ mol-1
Ionization Energy (2nd)1158 kJ mol-1
Ionization Energy (3rd)2161 kJ mol-1
Molar Heat Capacity J K-1mol-1
Standard Molar Entropy J K-1mol-1
Enthalpy of Fusion kJ mol-1
Enthalpy of Vapourization kJ mol-1
[Back to Periodic table]

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