Electron Configuration

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Michael Du 1E
Posts: 117
Joined: Sun Sep 22, 2019 12:16 am

Electron Configuration

Postby Michael Du 1E » Tue Nov 05, 2019 9:59 am

I have a question upon the order of the electron configuration. Say for example for copper the configuration would end with 3d^9 and 4s^2 coming after. When the 4s donates an electron to 3d to make it fully stable, would the 4s^1 now come before the 3d^10 when writing down the configuration? Thank you.

Victoria Li 1L
Posts: 51
Joined: Sat Jul 20, 2019 12:15 am

Re: Electron Configuration

Postby Victoria Li 1L » Tue Nov 05, 2019 10:06 am

The configuration always goes from low to high in terms of n, so it would still be 3d104s1.

Brynne Burrows 3K
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

Re: Electron Configuration

Postby Brynne Burrows 3K » Tue Nov 05, 2019 10:35 am

When writing electron configuration, 3d always preceeds 4s because it is a lower energy level!

Posts: 50
Joined: Wed Sep 11, 2019 12:17 am

Re: Electron Configuration

Postby Maddie » Tue Nov 05, 2019 10:40 am

This is helpful when dealing with cations and. anions to know where to pull electrons from

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