Question

7. The correct electronic configuration of Cu(29) is
a) 1s22s22p63s 3p3d10451
b) 1s 2s 2p 3s-sp%3d114s
c) 1s 2s22p63s 3p3 dº4s2
d) 1s 2s 2p 3s 3p53a10452​

Answer 1

Cu(29)

1s2 2s2 2p6 3s2 3p6 3d10  4s1