Question

what is the lightest Reduction gas in periodic table?



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Answer 1

Explanation:

Helium

Helium is the second most abundant element in the universe, after hydrogen. Helium has monatomic molecules, and is the lightest of all gases except hydrogen. .

Answer 2

Answer:

HELIUM ✌️

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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Helium.

atomic number 2

electron configuration 1s2