Periodic Table And Periodicity

$\mathrm{Mg}^{2+}, \mathrm{Al}^{3+}, \mathrm{Na}^{+}, \mathrm{Si}^{4+}$

$\mathrm{Al}^{3+}, \mathrm{Si}^{4+}, \mathrm{Mg}^{2+}, \mathrm{Na}^{+}$

$\mathrm{Mg}^{2+}, \mathrm{Si}^{4+}, \mathrm{Al}^{3+}, \mathrm{Na}^{+}$

$\mathrm{Al}^{3+}, \mathrm{Mg}^{2+}, \mathrm{Si}^{4+}, \mathrm{Na}^{+}$