Electronegativaty
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Electronegativaty
Why is it that the exception elements Chromium and Copper take an electron from the 4s orbital and toss it into the 3d orbital? I know it is because they don’t want to have the 5th 3d orbital to be empty, since they like all of them to be half full, but I guess the extent of my question goes to why they like their orbitals half full?
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- Posts: 76
- Joined: Fri Sep 28, 2018 12:26 am
Re: Electronegativaty
*To clarify I meant why does chromium like it’s 3d orbitals half full while copper likes it to be completely full?
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- Joined: Fri Sep 28, 2018 12:16 am
Re: Electronegativaty
Electrons always aim to find the lowest energy state in their respective orbitals. Electrons in elements such as Chromium and Copper remove an electron from the 4s orbital and add it to the 3d orbital because having all the orbitals in the d subshell half-full has a lower energy requirement than having certain orbitals empty and the 4s orbital full.
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