Essay Archive - Oxygen
Oxygen
Oxygen is a Group 16 element. Oxygen is the third most abundant
element found in the sun, and it plays a part in the carbon-nitrogen cycle,
one process responsible for stellar energy production. Oxygen in excited
states is responsible for the bright red and yellow-green colours of the
aurora. The atmosphere of Mars contains about 0.15% oxygen. About two
thirds of the human body, and nine tenths of water, is oxygen. The gas is
colourless, odourless, and tasteless. Liquid and solid oxygen are pale blue
and strongly paramagnetic.
Ozone (O3) is f....
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