Periodic Table of Elements showing Uranium actinide metal elements


Atomic Number92
Molar Mass238.03 g mol-1
Electron Configuration[Rn]5f36d17s2
Normal Statesolid metal
Density @STP18.95 g cm-3
Melting Point1135oC
Boiling Point4131oC
Stable Isotopes234U, 235U, 238U
Atomic Radius138 pm
Ionic Radius80 (6+) pm
Electronegativity (Pauling)1.38
Ionization Energy (1st)584 kJ mol-1
Ionization Energy (2nd)1420 kJ mol-1
Ionization Energy (3rd)1843 kJ mol-1
Molar Heat Capacity27.7 J K-1mol-1
Standard Molar Entropy50.2 J K-1mol-1
Enthalpy of Fusion15.5 kJ mol-1
Enthalpy of Vapourization422.6 kJ mol-1
[Back to Periodic table]

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