INDEX NEXT UP PREVIOUS ATG Oxygen (O) Oxygen (O)


SUNFLOWERS
Atomic Number: 8
Atomic Weight: 16.00
Melting Point: -218.40
Boiling Point: -184.96
Specific Gravity: 1.14 (liquid)
Valence(s): -2
Joseph Priestley is generally credited with discovering Oxygen in 1774. It is the 3rd most abundant element in the universe. Oxygen and its compounds make up 49.2% by weight of crust of the Earth. Animals and plants cannot exist without Oxygen. Oxygen is also responsible for combustion. Ozone is a highly active form of Oxygen.
[LM] {RW}


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