Oxygen
Elemental State O2
Electron Configuration 1s22s22p4
First Ionization Potential 13.618 eV
Electron Affinity 1.461 eV
Z* 4.453 (Clementi-Raimondi)
Pauling Electronegativity 3.44
Covalent Radius 0.73 Å single bond
Metallic Radius  
Ionic Radius 1.21 Å O2– coordination number = 2

1.22 Å O2– coordination number = 3

1.24 Å O2– coordination number = 4

1.26 Å O2– coordination number = 6

1.28 Å O2– coordination number = 8

van der Waal's Radius 1.52 Å
Melting Point –218.79 oC (triple point)
Boiling Point –182.95 oC
Density  
Other Properties