According to the Diagonal Relationship principle in the modern periodic table, which of the followin — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Diagonal relationships occur between elements of the 2nd and 3rd periods located diagonally opposite to each other. This is due to their similar ionic potentials (charge/size ratio). Established diagonal pairs include $Li \approx Mg$, $Be \approx Al$, and $B \approx Si$.