Chlorine
Elemental State Cl2
Electron Configuration 1s22s22p63s23p5
First Ionization Potential 12.968 eV
Electron Affinity 3.613 eV
Z* 6.116 (Clementi-Raimondi)
Pauling Electronegativity 3.16
Covalent Radius 0.99 Å
Metallic Radius  
Ionic Radius 1.67 Å Cl coordination number = 6
van der Waal's Radius 1.75 Å
Melting Point –101.5 oC
Boiling Point –34.04 oC
Density 3.214 g/L
Other Properties