InterviewSolution
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InterviewSolution
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Which of the following species will have the largest size?A. `A1^(3+)`B. `A1`C. `Mg^(2+)`D. `Mg` |
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Answer» Correct Answer - D Atomic radii decrease across a period `(Mg rarr A1)`. Cations are always smaller than their parent atoms. Among isoelectronic species, the one with the larger positive nuclear charge will have a smaller radius: `Mg gt A1 gt Mg^(2+) gt A1^(3+)` |
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