Consider the Chalcogen family (Group 16). What is the exact increasing order of the absolute magnitu — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Due to immense inter-electronic repulsion in its tiny $2p^4$ subshell, Oxygen's electron affinity is anomalously low, making it the least negative in its entire group. The order of magnitude is $O < Po < Te < Se < S$.