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
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 &C
B. A&D
C. A&E
D. A&B
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Correct Answer - D
(A) and (B) having `3e^(Theta)` in valence shell so they are same group element.
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