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Magnesium · chemical symbol

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Magnesium has 12 protons in every atomic nucleus. Changing that number would make a different element. Source: Magnesium ↗

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  1. 13Aluminium · chemical symbolRECALL
    Al

    Atomic number 13

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  2. 14Silicon · chemical symbolRECALL
    Si

    Atomic number 14

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  3. 15Phosphorus · chemical symbolRECALL
    P

    Atomic number 15

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