Which of the following sets of quantum numbers describes the electron occupying the highest energy o — Atomic Structure Chemistry Question

💡 Solution & Explanation

Energy in multi-electron atoms is determined by the $(n+l)$ rule. A: $3+2=5$ ($3d$). B: $4+2=6$ ($4d$). C: $4+1=5$ ($4p$). D: $5+0=5$ ($5s$). The $4d$ orbital has the highest $(n+l)$ value ($6$), making it the highest energy state.