Maxwell,+Emily





**__ [|Oxygen/0] __**

** Boiling point: -183.0 C ** ** Melting point: -218.4 C ** ** Gravity: (g/cm3) 1.43 ** ** Density: 0.001429 g/cm^3 ** ** Protons: 8 ** ** Neutrons: 8 ** ** Electrons: 8 ** ** Atomic mass: 16.00 ** ** Atomic number: 8 ** ** Electron configuration: 1s2 2s2 2p4 ** ** Orbital notation: 1s2 2s2 2p4 ** ** Number of valance electrons: 6 ** ** [|Discovered] ** ** How: by heating mercuric oxide (HgO) ** ** When: 1774 ** ** Who: Joseph Priestley and Carl Wilhelm ** ** Produced: nature ** ** Physical/Chemical properties: colorless, odorless, and tasteless ** ** What is found in the element? : The third most abundant elements ** ** Two common chemical reactions ** ** 1: combines with most elements ** ** 2: components of hundreds of thousands of organic compounds ** ** Industrial or commercial uses: oxygen tanks ** ** Cost or value: breathing is free but some people need oxygen tanks to breath; they cost money you could pay anywhere for $1 to $100 ** ** [|Unusual facts]: every element except for the inert gases chemically combines with oxygen **