Consider the isoelectronic series: . Which of the following statements correctly explains the trend — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

In an isoelectronic series, the electron count is constant (10e-), so the ionic radius is inversely proportional to the nuclear charge ($Z$). Thus, $N^{3-} > O^{2-} > \dots > Al^{3+}$.