what is helium ??
describe it briefly .
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Answer: Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling and melting point are the lowest among all the elements.
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Helium-He is a noble gas in group18 period 1
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