What is helium gas????
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Helium (He), chemical element, inert gas of Group 18 (noble gases) of the periodic table. The second lightest element (only hydrogen is lighter), helium is a colourless, odourless, and tasteless gas that becomes liquid at −268.9 °C (−452 °F).
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simple.
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helium is the gas in group 18 and a noble gas it is also a chemical element number 2and universe contain most helium because of that we can fly in universe it is taste less and odour less it becomes liquid ay -268.9degree Centigrate.
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