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Helium is a chemical element that has the symbol He, is colorless, odorless, tasteless, non-toxic, and nearly inert monatomic that heads the noble gas series in the periodic table.

Note:   The above text is excerpted from the Wikipedia article "Helium", which has been released under the GNU Free Documentation License.
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Matter & Energy News
October 13, 2015

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updated 12:56 pm ET