Question

15. Give Reason: The
electronic configuration of
Copper and Chromium is
exceptional. [Marks - 3]​

Answer 1

Explanation:

since chromium has 4 electrons which is one short of5 elections to Get half filled. to attain completely fillede. c copper gains one electionto attain stable election configuration.so,the e. c.......,..prional

Answer 2

Answer:

Explanation:

There are two main exceptions to electron configuration: chromium and copper. In these cases, a completely full or half full d sub-level is more stable than a partially filled d sub-level, so an electron from the 4s orbital is excited and rises to a 3d orbital.