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  1. Atomic number of an atom gives the number of which of the following ?

    2. A.

     Electrons
    B.

     Protons
    C.

     Neutrons
    D.

     Neutrons and protons

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    Answer : Option B

    Explanation :

    Atomic number of a chemical element is the number of protons found in the nucleus of an atom of that element, and therefore identical to the charge number of the nucleus. It determines the place of an element in the periodic table. In an uncharged atom, the atomic number is also equal to the number of electrons.

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