TS EAMCET 20-July-2022 Shift 2 Solved Paper

(i) The size of the ion depends on number of shells, more are the number of shells, larger is the size of anion. When number of shells are same (like in O2− and F−), more negative ion will have larger size. Therefore, the correct decreasing order of ionic radius will be
I−>Se2−>Br−>O2−>F−