Question

Write electronic configuration of chromium and copper. Explain why they have exceptional
configuration​

Answer 1

Explanation:

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.

hope it will help u ✌️

Answer 2

Explanation:

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.