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  3. 9th Class
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  5. Structure of the Atom

9th Class Science Structure of the Atom Question Bank Structure of Atoms

  • question_answer
    The relative atomic masses of many elements are not whole numbers because

    A)  they cannot be determined very accurately

    B)  the atoms ionize during the determinations

    C)  of the existence of isotopes  

    D)  of the presence of impurities

    Correct Answer: C

    Solution :

    Not Available


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