Chemistry - PERIODIC TABLE Question with Solution | TestHub

The correct stability order is given by the inert pair effect. For Group 14 elements, the stability of the +2 oxidation state increases down the group. Thus, $S{i}^{+2}<G{e}^{+2}<S{n}^{+2}<P{b}^{+2}$ is correct. Options A, B, and D are incorrect based on this and other periodic trends.