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Select the pair of atoms having the same number of electrons in their outermost shell |
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Answer» Solution :(a) `Na = [NE] 3s^(1), Ca = [Ar] 4s^(2)` (b) `Mg = [Ne] 3s^(2), Fe [Ar] 3d^(6) 4s^(2)` (c) As and Bi belong to the same group with outer shell E.C. `= ns^(2) NP^(3)` (d) Pb and Sb lie in different groups |
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