Copper and Chromium Exception

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Amina Durrani 3G
Posts: 52
Joined: Sat Jul 20, 2019 12:16 am

Copper and Chromium Exception

Postby Amina Durrani 3G » Sat Nov 02, 2019 4:52 pm

Can someone explain what the Copper and Chromium exceptions are for electron configuration?

Ethan Lam 4A
Posts: 69
Joined: Thu Jul 11, 2019 12:17 am

Re: Copper and Chromium Exception

Postby Ethan Lam 4A » Sat Nov 02, 2019 4:57 pm

Copper and Chromium are exceptions because it is chemically more stable for them to have a symmetric orbitals instead of a full s-orbital. For copper, it takes one away from the s-orbital to completely fill its d-orbital. For chromium, it takes one away from the s-orbital to have an electron in each of its five orbitals.

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

Re: Copper and Chromium Exception

Postby Elizabeth Harty 1A » Sat Nov 02, 2019 5:11 pm

For these you just add one to the d orbital and take one from the 4s to make it 4s^1


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