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Answer the following on the basis of modern periodic table. (I) Group no. of elements with the valence shell ground state electron configuration ns^(2)np^(5) (II) Group no. of the elements with the valence shell ground state electron configuratio ns^(2)np^(3) (III) Group no. of the elements that have only three unpaired p electron in ground state (V) ground 3A elements. |
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