Exceptions

Moderators: Chem_Mod, Chem_Admin

Rohan Kubba Dis 4B
Posts: 50
Joined: Sat Aug 17, 2019 12:18 am

Exceptions

Postby Rohan Kubba Dis 4B » Sat Oct 19, 2019 7:10 pm

Can someone please explain the exceptions to the multi-electron atoms? If someone could use some examples and explanations to describe these special cases, it would be much appreciated.

nickianel_4b
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Exceptions

Postby nickianel_4b » Sat Oct 19, 2019 8:31 pm

The exceptions are when electrons move from the 4s orbital to a 3d orbital. I think this is just because it's more stable for the atom to have all half-full or full 3d orbitals than for them to be uneven. The examples Dr. Lavelle used in class are
Cr: [Ar] 3d5 4s1 instead of [Ar] 3d4 4s2
Cu: [Ar] 3d10 4s1 instead of [Ar] 3d9 4s2

ranqiao1e
Posts: 51
Joined: Sat Sep 14, 2019 12:15 am

Re: Exceptions

Postby ranqiao1e » Fri Oct 25, 2019 6:45 pm

In order to be more stable, some electrons in certain atoms may not follow the rule. Remember that they want to be as "happy" as possible.


Return to “Electron Configurations for Multi-Electron Atoms”

Who is online

Users browsing this forum: No registered users and 1 guest