Berkelium
Elemental State Bk
Electron Configuration 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p67s25f9
First Ionization Potential 6.23 eV
Electron Affinity   
Z*   
Pauling Electronegativity   
Covalent Radius   
Metallic Radius   
Ionic Radius   
van der Waal's Radius   
Melting Point 1050 oC
Boiling Point  
Density ~14 g/cm3
Other Properties Man made; all isotopes are radioactive

243Bk half-life = 4.5 hours

249Bk half-life = 320 days