InterviewSolution
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InterviewSolution
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The size of the following species increases in the orderA. `A1 lt Mg^(2+) lt F^(-) lt Na^(+)`B. `F^(-) lt A1 lt Na^(+) lt Mg^(2+)`C. `Mg^(2+) lt Na^(+) lt F^(-) A1`D. `Na^(+) lt A1 lt F^(-) lt Mg^(2+)` |
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Answer» Correct Answer - C `F^(-), Na^(+)`, and `Mg^(2+)` are isoelectronic species, their size increases with decrease of nuclear charge. Thus, the correct order of size is `Mg^(2+)(Z = 12) lt Na^(+) (Z = 10) lt F^(-) (Z = 9)` |
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