Which of the following statements regarding periodic trends are CORRECTLY formulated based on experi — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Statement A is correct; the poor shielding of 10 $3d$ electrons causes transition contraction in Ga. Statement C is correct; Nitrogen's $2p^3$ is half-filled and highly stable. Statement B is incorrect; $O^+$ is $2p^3$ (highly stable), making $IE_2(O) > IE_2(N)$. Statement D is incorrect; radii in the 3d series decrease, then remain constant, then increase slightly at Zn.