Chemistry, asked by aryamanshaw01, 8 months ago

Why is the electronic configuration of Cu is [Ar] 3d10 4s1 and not 4s2 3d9. Why does 3d comes first​

Answers

Answered by neerajamanivannan04
1

Answer:

It is not anything that we should write 3d first. We can write 4s also first(for our convenience ). But usually they write the fully filled orbitals first..

Explanation:

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