OXYGEN

OXYGEN (8) (Gaseous)
Atomic radius:.65Deg. A (Quantum mech. value for a free atom)
Atomic volume:14.0 cm(3)/mol at 300Deg. Kelvin
Atomic weight:15.9994 (Based on Carbon 12)
Boiling point:90.18Deg. Kelvin
Covalent radius:.73Deg. A
Crystal structure:Cubic
Density:1.429 g/l at 293Deg. Kelvin and 1atm
Electrical conductivity:
Electron configuration:1s(2)2s(2)p(4)
Electronegativity:3.44 (Pauling's)
First ionization potential:13.618 V
Heat of fusion:.22259 kJ/mol at melting point
Heat of vaporization:3.4099 kJ/mol at boiling point
Melting point:50.35Deg. Kelvin
Oxidation states:-2
Specific heat capacity:.92 Jg(x.1) K(x.1) at 300Deg. Kelvin
Thermal conductivity:.0002674 W cm(x.1) K(x.1) at 300Deg Kelvin
Description:An element that is found free as a colorless,odorless,tasteless gas
in the atmosphere,of which it constitutes 21%.It is found in water,most rocksand minerals,and in numerous compounds;it is capable of combining with all of the
elements,except for the inert gases;it is active in physiological processes and
especially in combustive processes.

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