The ionic radii of \( \mathrm{K}^{+}, \mathrm{Na}^{+}, \mathrm{Al}^{3+} \) and \( \mathrm{Mg}^{2...
The ionic radii of \( \mathrm{K}^{+}, \mathrm{Na}^{+}, \mathrm{Al}^{3+} \) and \( \mathrm{Mg}^{2+} \) are in the order:
(a) \( \mathrm{Na}^{+}\mathrm{K}^{+}\mathrm{Mg}^{2+}\mathrm{Al}^{3+} \)
(b) \( \mathrm{Al}^{3+}\mathrm{Mg}^{2+}\mathrm{Na}^{+}\mathrm{K}^{+} \)
(c) \( \mathrm{Al}^{3+}\mathrm{Mg}^{2+}\mathrm{K}^{+}\mathrm{Na}^{+} \)
(d) \( \mathrm{K}^{+}\mathrm{Al}^{3+}\mathrm{Mg}^{2+}\mathrm{Na}^{+} \)
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