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The Noble Gases
are the far right elements on the periodic table.
On the earth they are scarce so we don¹t see much of them. They are do not
react well with anything. In fact until around the 50¹s they hadn¹t found
anything that they would react with any of the gases. But then someone found
out that Fluorine one the of most reactive elements could form compounds with
Xenon. Later they found that it could react with most of the other nobles.
Helium is one of the more scarce nobles on earth but in the
universe it makes up 25% of it. Helium¹s presence was discovered by using
spec ....
Word count: 454 - Page count: 2
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