Which one of the following is correct increasing order of size ?A. `Mg lt Na^(+)lt F^(-)lt Al`B. `Na^(+)lt Al lt Mg lt F^(-)`C. `Na^(+)lt F^(-)lt Al lt Mg`D. `Na^(+) lt F^(-)lt Mg lt Al`

Which one of the following is correct increasing order of size ?A. `Mg

1.	Which one of the following is correct increasing order of size ?A. `Mg lt Na^(+)lt F^(-)lt Al`B. `Na^(+)lt Al lt Mg lt F^(-)`C. `Na^(+)lt F^(-)lt Al lt Mg`D. `Na^(+) lt F^(-)lt Mg lt Al`
Answer» `Na^(+)` and `F^(-)` ions are isoelectronic, therefore `F^(-)` has the large and `Na^(+)` has the lowest size. Further, Al with higher nuclear charge has lower size than Mg. Thus, the overall order is `Na^(+)lt Al lt Mg lt F^(-)`

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Which one of the following is correct increasing order of size ?A. `Mg lt Na^(+)lt F^(-)lt Al`B. `Na^(+)lt Al lt Mg lt F^(-)`C. `Na^(+)lt F^(-)lt Al lt Mg`D. `Na^(+) lt F^(-)lt Mg lt Al`
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Which one of the following is correct increasing order of size ?A. `Mg lt Na^(+)lt F^(-)lt Al`B. `Na^(+)lt Al lt Mg lt F^(-)`C. `Na^(+)lt F^(-)lt Al lt Mg`D. `Na^(+) lt F^(-)lt Mg lt Al`

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