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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: h1372832 on May 11, 2018, 08:57:15 AM

Title: Standard electronic configuration
Post by: h1372832 on May 11, 2018, 08:57:15 AM

Hello!!! I have never understood, or I have not been able to explain well, why some elements do not "follow" the "standard" electronic configuration, I explain myself, for example in cases like the N instead of seeing the 1s² 2s² 2s² 2p³ configuration and seeing the 1s² 2s² 4p³, I mean that, that does not follow the established order. And I would also like to know why some elements don't fill their orbitals completely, for example one that ends in 4f¹⁴ 5d⁵ 6s² instead of 4f¹⁴ 5d⁷, probably is not very difficult, but I repeat, I have never known the reason. Thank you from now on.

Title: Re: Standard electronic configuration
Post by: Corribus on May 11, 2018, 04:12:31 PM

Maybe this helps.

https://www.chemguide.co.uk/atoms/properties/3d4sproblem.html

Title: Re: Standard electronic configuration
Post by: wildfyr on May 11, 2018, 08:17:05 PM

An excellent resource and a good read!