Which of the following ions has the largest ionic radius?
- A$Be^{2+}$
- B$Mg^{2+}$
- C$Ca^{2+}$
- D$Sr^{2+}$
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The atomic radii of $Li$,$F$,$Na$,and $Si$ follow the order:
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$Mg$,$Mg^{2+}$,$Al$,$Al^{3+}$
$Mg$,$Mg^{2+}$,$Al$,$Al^{3+}$
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View SolutionOn going down a main sub-group in the periodic table (example $Li$ to $Cs$ in $IA$ or $Be$ to $Ra$ in $IIA$),the expected trend of changes in atomic radius is a
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