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Elements A,B,C,D and E have following electronic configuration. (A) `1s^(2),2s^(1) 2p^(1), (B) 1s^(2),2s^(2) 2p^(6) , 3s^(2) 3p^(1)`(C) `1s^(2),2s^(2)2p^(6),3s^(2) 3p^(3)` (D) `1s^(2),2s^(2)2p^(6),3s^(2) 3p^(5)`(E) `1s^(2),2s^(2) 2p^(6) , 3s^(2) 3p^(6)`Which among the belongs to same group in the periodic table. ?A. A &CB. A&DC. A&ED. A&B |
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Answer» Correct Answer - D (A) and (B) having `3e^(Theta)` in valence shell so they are same group element. |
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