Question

. Write the expected and actual configuration of Cr and Cu​

Answer 1

Answer:

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The configuration of Cr atom is 3d54s1 but not 3d44s2 due to reason R1 and the configuration of Cu atom is 3d104s1 but not 3d94s2 due to reason R2.

Answer 2

Answer:

The configuration of Cr atom is 3d54s1 but not 3d44s2 due to reason R1​ and the configuration of Cu atom is 3d104s1 but not 3d94s2 due to reason R2​.