Oxygen

O
Oxygen
Non-Metal

 

Atomic number:
 8
Atomic weight:
 15.9994
Shells:
 2,6
Orbitals:
[He] 2s2 2p4
Melting point:
 -218.4°C
Boiling point:
 -182.962°C
Covalent radius:
 0.73
Å
Atomic volume:
 14.0
cm³/mol
Atomic radius:
 0.65
Å
Ionic radius:
 1.40 (-2)
Å
Electronegativity:
 3.44
Oxidation states:
 
1st ionization pot.:
 13.6181
V
2nd ionization pot.:
 35.117
V
3rd ionization pot.:
 54.934
V
Specific heat:
 0.92
J/gK
Heat of fusion:
 0.22259
kJ/mol
Heat of vapor.:
 3.4099
kJ/mol
Thermal conduct.:
 0.0002674
W/cmK
Electrical conduct.:
 --
10^6/cm ohm
Density:
 0.001429
g/cm³
Valence:
 2