Which one of the following has the ground state electron configuration [Ar]3d¹⁰4s¹? A)In ⁺ B)Cd ²⁺ C)Ag ⁺ D)Ag E)Cu

Question

Quizplus · Accepted Answer

The ground state electron configuration of Cu is [Ar]3d104s1, which can be rewritten as [Ar]3d94s1¹. The given electron configuration contains an extra electron in the 3d orbital, indicating that it is an excited state. Therefore, the only choice that matches the given electron configuration is E, Cu.

Which One of the Following Has the Ground State Electron