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Author: Subject: Transition Metal Oxidation Number
lacrima97
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[*] posted on 15-2-2006 at 18:49
Transition Metal Oxidation Number


How is CuO formed, when Cu only has 1 electron (4s1) and oxygen needs to take 2 electrons in (2s2 2p4)?

To me it seems that Cu would have an oxidation number of +1, but I don't think that is the case. Is an electron donated from the 3d orbital? If so, would the 3d10 become 3d9?
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[*] posted on 15-2-2006 at 21:07


It takes the electron from 4s and 3d. It CAN have an oxidation number of +1. The thing is that the 4s and 3d are basically degenerates (same energy) so it can remove the electrons from 4s and 3d.



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lacrima97
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[*] posted on 16-2-2006 at 05:48


Ohhhh. I didn't know that the 4s and 3d had the same energy...Well, I figured it must be something like that. Thanks for the help.
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