Question

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what is hydrogen?​

Answer 1

Answer:

hydrogen is a gas and an element of periodic table with atomic no.1 and atomic mass 1 . Although it's place is yet not decided

Answer 2

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Hydrogen is the chemical element with the symbol H and atomic number 1. With a standard atomic weight of 1.008, hydrogen is the lightest element in the periodic table. Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all baryonic mass.

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