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  3. 9th Class
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9th Class Science Sample Paper Science Olympiad Model Test Paper-1

  • question_answer
    Which one of the following is the correct electronic configuration of the xenon gas?

    A)  2, 8, 18, 10, 8, 8

    B)  2, 8, 2, 8, 18, 8, 8

    C)  2, 8, 18, 18, 8  

    D)  2, 8, 18, 8, 18

    E)  None of these

    Correct Answer: C

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