What is the correct electronic configuration for Copper (Z=29), accounting for the stability associated with a completely filled d-subshell?
Q1. What is the correct electronic configuration for Copper (Z=29), accounting for the stability associated with a completely filled d-subshell?
Answer: [Ar] 4s1 3d10
Explanation: Copper achieves a full 3d subshell (3d10) for stability; 4s2 3d9 is the predicted but less stable configuration.