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  5. Periodic Classification of Elements

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

  • question_answer
    Why does atomic size increase in a group?

    A) Due to the addition of more electrons

    B) Due to decrease in number of protons

    C) Due to the addition of an extra shell

    D) All of the above

    Correct Answer: C

    Solution :

    Atomic size increases in a group due to the addition of an extra shell.


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