Question

Q)Write the electronic configuration of Cr and Cu and explain its exceptional nature.

Answer 1

Answer:

Since chromium had 4 electrons, which is one short of 5 electrons to get just hslf-filled. To attain a completely filled electronic configuration copper gains one electron from the d-orbital and attains the electronic configuration of (Ar) d10 4s1. Thus both Cr and Cu have exceptional electronic configuration

Answer 2

Explanation:

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