Which of the following neutral atoms have correctly matched general valence shell electronic configu — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Pnictogens (Nitrogen family, Group 15) have $ns^2 np^3$. Chalcogens (Oxygen family, Group 16) have $ns^2 np^4$. Halogens (Fluorine family, Group 17) have $ns^2 np^5$. Alkaline earth metals (Group 2) have the configuration $ns^2$, not $ns^1$.