Please answer

Asked by ubedullah | 17th Oct, 2009, 03:08: PM

Expert Answer:

The atomic number of Cr is 24.

The electronic configuration is: 1s2 2s2 2p6 3s2 3p6 3d5 4s1

The atomic number of Cu is 29.

The electronic configuration is: 1s2 2s2 2p6 3s2 3p6 3d10 4s1 

Answered by  | 20th Oct, 2009, 10:19: AM

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