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Helium · chemical symbol

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Helium has 2 protons in every atomic nucleus. Changing that number would make a different element. Source: Helium ↗

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More from Element Chemical Symbols

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  1. 03Lithium · chemical symbolRECALL
    Li

    Atomic number 3

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  2. 04Beryllium · chemical symbolRECALL
    Be

    Atomic number 4

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  3. 05Boron · chemical symbolRECALL
    B

    Atomic number 5

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