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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 groups of periodic table does an element belong, if it has an atomic number of 10?

    A) 1                                 

    B) 2

    C) 18                                

    D) 17

    E) None of these

    Correct Answer: D

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