Special Cases  [ENDORSED]

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Jose Hernandez 1D
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Special Cases

Postby Jose Hernandez 1D » Sun May 06, 2018 10:45 pm

How do you know which elements are the ones with special cases for their electron configuration?

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Re: Special Cases

Postby Chem_Mod » Sun May 06, 2018 10:51 pm

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Re: Special Cases  [ENDORSED]

Postby 404975170 » Sun May 06, 2018 10:54 pm

There is no way to tell from just looking at the periodic table because they have been found to be exceptions through experimentation. The only ones I believe that we need to know for the test are Cu and Cr like Dr. Lavelle said, it is also easy to remember that Gold and Silver are too.

Haison Nguyen 1I
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Re: Special Cases

Postby Haison Nguyen 1I » Mon May 07, 2018 1:45 pm

You just have to remember that the elements in d4 and d9 fall under the exceptions. It's because it's better to have all the orbitals half full than one full and one not have any at all.

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