Chemical Sing: O
Sequence Number: 8
Atomic Weight: 15.9994
Temperature of Melting: -218.4
Temperature of Boiling: -182.962
Electrons by Layers: 2:6
Isotopes: 8
Atomic Radius: 0.65
Brief History: Oxygen is a Group 16 element. While about one fifth of the atmosphere is oxygen gas, the atmosphere of Mars contains only about 0.15% oxygen. 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. 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 (see picture above) and strongly
5 comments:
Oh! You are a scientist !
I can't take this. that's why I chose commerce in my school instead of science. :D Science is an interesting subject to study. But I'm too lazy to spend much time on books :P
@Limu (Dhaka): Ha ha ha! You are very funny.
@aisjournal.com: Me too or thanks for your comment.
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