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Hydrogen · chemical symbol

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Hydrogen is both the lightest and the most abundant element in the universe, fueling stars through fusion. Source: Hydrogen ↗

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More from The Elements

A few more worth knowing.

  1. 03This element's ability to bond in countless ways makes it the chemical basis of all known organic life.RECALL
    Carbon

    Carbon's ability to bond in countless ways makes it the chemical basis of all known organic life.

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  2. 04Carbon · chemical symbolRECALL
    C

    Carbon's ability to bond in countless ways makes it the chemical basis of all known organic life.

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  3. 05This element dominates Earth's atmosphere and forms a key building block of amino acids and proteins.RECALL
    Nitrogen

    Nitrogen dominates Earth's atmosphere and forms a key building block of amino acids and proteins.

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