silvanogabriel303 silvanogabriel303

21-04-2020
Chemistry

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What is the period number in which helium is found?

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QueenLeilani38 QueenLeilani38

21-04-2020

Answer: period one

Explanation:

Helium is located in period 1, group 18 of the Periodic Table and has an atomic number equal to 2.

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