Which transition element has an electron configuration that results in a fully filled d-subshell instead of following the typical filling order?
Q1. Which transition element has an electron configuration that results in a fully filled d-subshell instead of following the typical filling order?
Answer: Copper
Explanation: Copper's [Ar]3d¹⁰4s¹ configuration prioritizes d-subshell stability. Option A has incompletely filled d-orbitals.