Question

what is helium ???????​

Answer 1

Explanation:

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 point is the lowest among all the elements.

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Answer 2

Answer:

Helium is a noble gas present in atmosphere.

• Symbol = He

• Atomic Number = 2

• Electronic Configuration = K = 2

• Mass = 4u

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