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4 September, 00:28

What are the 20 elements of periodic table

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  1. 4 September, 02:55
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    H - Hydrogen

    He - Helium

    Li - Lithium

    Be - Beryllium

    B - Boron

    C - Carbon

    N - Nitrogen

    O - Oxygen

    F - Fluorine

    Ne - Neon

    Na - Sodium

    Mg - Magnesium

    Al - Aluminum

    Si - Silicon

    P - Phosphorus

    S - Sulfur

    Cl - Chlorine

    Ar - Argon

    K - Potassium

    Ca - Calcium
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