10th Class Science Sample Paper Science Olympiad Model Test Paper-21

  • question_answer
    Element X has atomic number more than 10 and less than 20. If an atom of element X has 6 electrons in its last orbit, then it will ______ to achieve the stable inert gas electron configuration.

    A) Gain four electrons

    B) lose four electrons

    C) Gain two electrons

    D)  lose two electrons

    E)  None of these

    Correct Answer: C


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