Zirconium
Elemental State Zr
Electron Configuration 1s22s22p63s23p63d104s24p65s24d2
First Ionization Potential 6.634 eV
Electron Affinity 0.426 eV
Z*  
Pauling Electronegativity 1.33
Covalent Radius 1.48 Å
Metallic Radius 1.60 Å
Ionic Radius 0.73 Å Zr4+ coordination number = 4

0.86 Å Zr4+ coordination number = 6

0.92 Å Zr4+ coordination number = 7

0.98 Å Zr4+ coordination number = 8

van der Waal's Radius  
Melting Point 1855 oC
Boiling Point 4409 oC
Density 6.506 g/cm3
Other Properties