Describe the nature of oxides formed by the extreme left elements of the s-blocks and elements on the extreme right Of the p- block.
Elements on two extremes of a period easily combine with oxygen to form oxides. The normal oxide formed by the element in the extreme left is the most basic (e.g., Na2O) whereas that formed by the element on the extreme right is the most acidic (e.g., C12O7). Oxides of elements in the center are amphoteric (e.g., Al2O3 As2O3) or neutral (e.g., CO, NO. N2O).
