Which of the following pairs of elements exhibit a significant Diagonal Relationship due to their ne — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Diagonal relationships exist between certain elements of the 2nd and 3rd periods positioned diagonally across from each other. They share similar charge-to-size ratios (polarizing power) and electronegativities. The three classically established and significant diagonal pairs in inorganic chemistry are $Li \approx Mg$, $Be \approx Al$, and $B \approx Si$.