Question

The electronic configuration Cu (Z=29) is (A) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 9 4s 2 (B) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 9 4s 1 (C) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 1 (D) None of the above

Answer 1

d) 1s2 2s2 2p6 3s2 3p6 3d10 4s1 (full filled electronic configuration)

Answer 2

Option C is the correct answer.