The nature of metallic and non-metallic oxides heavily depends on electronegativity differences. Whi — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Basic oxides are formed by highly electropositive metals (low EN). Amphoteric oxides are formed by borderline metals/metalloids. Acidic oxides are formed by non-metals (high EN). Magnesium oxide ($MgO$) is basic, Aluminium oxide ($Al_2O_3$) is amphoteric, and Silicon dioxide ($SiO_2$) is acidic.