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

  • question_answer
    An element having atomic number 34 can be placed in which of the given group and period of the modern periodic table?

    A) Group 15 and 4th period

    B) Group 16 and 5th period

    C) Group 14 and 7th period

    D) Group 16 and 4th period

    Correct Answer: D

    Solution :

    \[\text{Z}=\text{34};\text{ E}.\text{C}.=\text{2},\text{ 8},\text{ 18},\text{ 6}\]. Therefore, the element belongs to VI A group or 16th group and since it has four shells it belongs to \[{{4}^{th}}\] period.


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