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Which of the following is the correct sequence of the noble gases in their in the periodic table ?A. Ar, He, Kr, Ne, Rn, XeB. He, Ar, Ne, Kr, Xe, RnC. He, Ne, Kr, Ar, Xe, RnD. He, Ne, Ar, Kr, Xe, Rn. |
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Answer» Correct Answer - D Correct sequence of noble gases (down the group) is He, Ne, Ar, Kr, Xn, Rn. |
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