Q. The correct electronic configuration of Cu is
A. [Ar]4s1
B. [Ar]4s2
C. [Ar]3d104s1
D. [Ar]3d94s2
Answer: [Ar]3d104s1
A. [Ar]4s1
B. [Ar]4s2
C. [Ar]3d104s1
D. [Ar]3d94s2
Answer: [Ar]3d104s1
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