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  3. 10th Class
  4. Science

10th Class Science Sample Paper Science Olympiad Model Test Paper-8

  • question_answer
    An element has electronic configuration 2, 8, 1. It belongs to:

    A) Group no. \[-1\] and period no. \[-3\]

    B) Group no. \[-3\] and period no.\[-1\]

    C) Group no. \[-11\] and period no.\[-1\]

    D) Group no. \[-1\] and period no.\[-11\]

    E) None of these

    Correct Answer: A

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