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

  • question_answer
    The elements with atomic numbers 4, 12, 20, 38, 56, 88 belong to which of the given group?

    A) Alkali metals

    B) Alkaline earth metals

    C) Inert gases

    D) Halogens

    Correct Answer: B

    Solution :

    The given atomic numbers belong to Be, Mg, Ca, Sr, Ba, Ra of alkaline earth metals.


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