Electron Configurations of Transition Metals: Exceptions

24. Transition Metals and Coordination Compounds / Electron Configurations of Transition Metals: Exceptions / Problem 2

Problem 2

What is the ground-state electron configuration of the Cu²⁺ ion?

[Ar]3d⁹

[Ar]4s¹3d¹⁰

[Ar]4s¹3d⁸

[Ar]3d⁸

What is the ground-state electron configuration of the Cu2+ ion?