Question

What is mean by Hydrogen
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Answer 1

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hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements. ... Under ordinary conditions, hydrogen gas is a loose aggregation of hydrogen molecules, each consisting of a pair of atoms, a diatomic molecule, H2.

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Answer 2

Answer:

Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element. ... Most of the hydrogen on Earth exists in molecular forms such as water and organic compounds. For the most common isotope of hydrogen (symbol 1H) each atom has one proton, one electron, and no neutrons.