Uranium
Elemental State U
Electron Configuration 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p67s26d15f3
First Ionization Potential 6.194 eV
Electron Affinity eV
Z*  
Pauling Electronegativity 1.7
Covalent Radius  
Metallic Radius 1.56 Å
Ionic Radius 1.165 Å U3+ coordination number = 6

1.03 Å U4+ coordination number = 6

1.14 Å U4+ coordination number = 8

1.05 Å U4+ coordination number = 9

van der Waal's Radius  
Melting Point 1135 oC
Boiling Point 4131 oC
Density 18.95 g/cm3
Other Properties All isotopes are radioactive

238U half-life = 4.46×109 years