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7 March, 13:37

If an atom has an atomic number of 12 and a mass number of 16 how many protons does it have

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  1. 7 March, 16:16
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    dа ta:

    z (atomic number)

    p (protons)

    e (electrons)

    A (mass number)

    We know that: Z = p = e

    Therefore:

    Z = 12

    P = 12 ← protons
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