Mitts,+Andrew

websites used [] Updated in 2012 Oxygen symbol is o. Oxygens boiling point is -182.9 c Oxygens melting point is -182.9 c Oxygens density/gravity is 1.429 g/l

[] updated in 2012 8 protons, 8 neutrons,8 electrons the atomic mass is 15.9994(3) the atomic number is 8 the valence electrons 6 A man named Josph Priestley said that air has two gases it was discovered in 1772. Oxygen was made by heating lead or mercury oxides. its abundant everywhere on earth. Also produced by photosynthesis.

[] updated in 2011 Oxygen is colorless,oderless, and tasteless. Oxygen is in thousands of compounds when it combines with a element Oxygen reactes with water air and halogens. oxygen is used in fuel oxidant, steel manufactunre, breathing [|www.chemicool.com] oxygen.html Oxygens cost is $0.3 per 100g. has no pure state. has no pure state.