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  3. 10th Class
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  5. Periodic Classification of Elements

10th Class Science Periodic Classification of Elements Question Bank Periodic Classification of Elements

  • question_answer
    Which of the following is the present basis for the classification of element

    A) Atomic mass of elements

    B) Atomic number of elements

    C) Physical state of elements

    D) Valency of elements

    E) None of these

    Correct Answer: B

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