OZ =  8

From the Greek "oxy geinomai", meaning "to bring forth acid"
(AM) Atomic Mass 15.9994  amu    Oxidation States -2
   (BP) Boiling Point -182.9  °C    (MP) Melting Point -218.4  °C
   (ρ) Density 0.001429  g/cm3    Crystal Structure Cubic
   ( χ ) Electronegativity 3.5    (AR) Atomic Radius 0.73  Å
   Physical State Gas (C) Heat Capacity 0.918  J/g °C
Electronic-Config 1s2  2s2  2p4     (I1) First Ionization E 1313.93  kJ/mol
   (ΔHvap) Heat of Vaporization 6.82  kJ/mol     (ΔHfus) Heat of Fusion 0.444  kJ/mol
   Year of Discovery 1774    Location of Discovery United Kingdom
(E°) Standard Potential 1/2 O2 + 2 H+⇔ H2O (1.230 V),  O3 + 2 H+⇔ O2 + H2O (2.070 V)
Stable isotopes  16O,  17O,  18O
Discovered/Synthesized by Joseph Priestley
Natural Source Isolated from the liquifaction of air
Common Uses Combustion, life support, fire
Other Info Third most abundant element in the universe
Exists in nature as the diatomic molecule O2
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