Electron Configuration

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Xin Huang 3E
Posts: 40
Joined: Wed Sep 21, 2016 2:57 pm

Electron Configuration

Postby Xin Huang 3E » Fri Oct 28, 2016 9:41 am

What should we write the electron configuration with noble gas abbreviation for an ion that has equal electrons in their outer shell with a noble gas? I.e. For Br- should we write [Kr] or [Ar]3d10 4s2 4p6

KatrineEyer_1E
Posts: 7
Joined: Wed Sep 21, 2016 2:59 pm

Re: Electron Configuration

Postby KatrineEyer_1E » Fri Oct 28, 2016 10:00 am

I believe both would be equally valid, wouldn't it? By writing the Noble Gas configuration, however, I think already implies that you know what the "expanded" configuration would be, so since scientists are notoriously lazy, I think the Noble Gas configuration should be sufficient.

Shailyn_Moore_3C
Posts: 21
Joined: Wed Sep 21, 2016 2:59 pm

Re: Electron Configuration

Postby Shailyn_Moore_3C » Fri Oct 28, 2016 10:59 am

Like the person above said both ways are technically correct but the point of using the noble gas abbreviation is to make writing the configuration shorter and simpler so I think [Kr] would be more appropriate.


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