Electron Configuration

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Odalis Section 1E
Posts: 20
Joined: Wed Nov 16, 2016 3:03 am

Electron Configuration

Postby Odalis Section 1E » Sun Jul 09, 2017 2:27 pm

Can someone please reexplain the exception of 4s and 3d

Savanna Gharibian 1A
Posts: 29
Joined: Fri Jun 23, 2017 11:39 am
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Re: Electron Configuration

Postby Savanna Gharibian 1A » Sun Jul 09, 2017 3:06 pm

From what I understood in class, it seems that 4s and 3d energies are very close to each other. 4s usually has more energy than 3d except when it comes to the elements Potassium and Calcium. For these two elements, 4s has slightly less energy than 3d. Hope that helps!

Alma Cruz 1A
Posts: 21
Joined: Fri Jun 23, 2017 11:40 am

Re: Electron Configuration

Postby Alma Cruz 1A » Sun Jul 09, 2017 8:45 pm

Is it a given rule that 4s has slightly less energy than 3d for both Potassium and Calcium?


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