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

  • question_answer
    Metals have generally 1, 2, 3 electrons in their outer most shell. Name the element having two electron in its outermost shell, but it is not metal itself.

    A) Ca

    B) Mg

    C) Be

    D) He

    E) None of these

    Correct Answer: D

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