Silicates are formed by the replacement of positively charged $\mathrm{Si}^{4+}$ ions in $\mathrm{Si

Question

Silicates are formed by the replacement of positively charged $\mathrm{Si}^{4+}$ ions in $\mathrm{SiO}_{4}{ }^{4-}$ tetrahedra by\

Professor PC Thomas Classes · Answer

In silicates $\mathrm{Si}^{4+}$ ions in $\mathrm{SiO}_{4}{ }^{4-}$ tetrahedra are, replaced by ions like $\mathrm{Al}^{3+}, \mathrm{Na}^{+}, \mathrm{K}^{+}, \mathrm{Ca}^{2+}$ $\mathrm{Mg}^{2+}$ etc .\