According to periodic trends in electronegativity, which of the following metallic and semi-metallic — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Amphoteric oxides can react with both strong acids and strong bases. The elements on the borderline of metal/non-metal transitions often form amphoteric oxides. Standard examples include $BeO, Al_2O_3, ZnO, SnO, SnO_2, PbO, PbO_2$, and $Ga_2O_3$. $SrO$ is an alkaline earth metal oxide and is strongly basic.