Oxygen
Oxygen is one of the many non-metals. It is the most abundant of the non-metals, and is the second most abundant element on earth. Oxygen is important because it is necessary in order to sustain life.
General Info
Oxygen is a colorless, odorless, and tasteless gas at room temperature. Its chemical symbol is “O”. It is a nonmetal. Oxygen is part of a group called chalcogens. Chalcogens are the group of elements that form group vi of the periodic table.
Chemical Info
Name: Oxygen
Chemical Symbol: O
Atomic Mass: 15.9994
Atomic Number: 8
Density: 1.426 g/cm3
Valence: -2
Isotopes
O-15 has a half life of 122.2 seconds. The isotope O-16 is stable. The isotope O-17 is stable. The isotope O-18 is stable.
History
Oxygen was discovered by a scientist named John Priestly in 1774. He found this by heating Mercury(II) Oxide. This then broke the mercury and oxygen apart leaving two atoms of mercury and one oxygen atom.
Physical Properties
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Title: Oxygen
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Approximate Pages: 4 (250 words per double-spaced page)

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