You write the electron structure like this.
1s2 2s2 2p6 3s2 3p6 3d10 4s1 is the neutral Cu atom.
Remove the two outside electrons to make the Cu^+2 ion. That leaves us with
3d9 as the outside and since that is an odd number, one electron must be unpaired. And you will note that many Cu(II) compounds are colored.
So for CoCl2·6H20 the electron configuration is [Ar]4s2 3d7 because Co is 2+ so would the unpaired electrons be 3? is that right?
Yes, it has 3 unpaired electrons BUT 4s2 are missing for the Co^+2 ion in the compound CoCl2.6H2O. You wrote the electron configuration for the neutral atom.
Do you know how to almost without thinking write the 3d electrons in the 3d transition series. It's the DrBob rule.
Confirm that the experimentally observed electronic configuration of K, 1s2 2s2 2p6 3s2 3p6 4s1 is energetically more stable than the configuration 1s2 2s2 2p6 3s2 3p6 3d1. ______ i know that it is energetically favorable for the
Dr.Bob, yesterday you told me : "The best way I think is to show examples. 12Mg = 1s2 2s2 2p6 3s2 Here the 1s orbital is lower than the 2s and they are lower than the 3s etc." 19K = 1s2 2s2 2p6 3s2 3p6 3d0 4s2 Here the 1s is lower
Hi! Can somebody please help me with a coupla questions? Thanks loads!!! Describe physical and chemical properties of isotopes of the same element. Given the electron configuration of an element, how can you tell whether it
How do i calculate the effective nuclear charge of a 3d electron of copper? what is the zeff. for a electron in the 3d orbital of copper. i looked up the answer to be 13.20, but i calculated 13.05 this is my work: (1s2)(2s2
I just have one more question regarding electron configurations for the following ions: Mo^3+ V^3+ I cannot understand why my answers are not working. Not listing as ground-state configs, but as full e- configs: shouldn't Mo^3+
WHy is Copper an exception in electron configuration? Copper is not an exception except in our minds. The exception lies in our attempt to explain electron configurations. In the case of Cu and Cr for the 3d series, they don't
There are several exceptions to the octet rule found along the transition and rare earth metal sections. These exceptions are tied to the observed phenomenon that atoms are more stable if orbital systems are either whole or half
Why is magnesium atom smaller than atoms of both sodium and calcium? The location of the outer electrons for Mg are in closer to the nucleus than of Sodium or Calcium. To add to the correct answer from Bob Pursley, consider the