Science, asked by Anonymous, 4 months ago

what is hydrogen.........

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Answered by Anonymous

Hydrogen is the chemical element with the symbol H and atomic number 1

Answered by Anonymous

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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