Confusion on e- Notes

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104922499 1F
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am

Confusion on e- Notes

Postby 104922499 1F » Mon Oct 23, 2017 9:42 pm

I missed lecture, but I got notes from a friend and I noticed for the e- configuration for Cu it was written as: [Ar] 3d^104s^1
I was confused why there is a bracket around Ar? Is it just a shorter notation or way to write the configuration?

David Minasyan 1C
Posts: 54
Joined: Thu Jul 13, 2017 3:00 am

Re: Confusion on e- Notes

Postby David Minasyan 1C » Mon Oct 23, 2017 9:58 pm

Yes that's exactly what that means. It's called the noble gas configuration if we we're being fancy and it's really a short hand way of writing the noble gas configuration up to the noble gas (in this case argon) instead the whole 1s2, 2s2, 2p6..and so on.

404995677
Posts: 82
Joined: Fri Sep 29, 2017 7:07 am

Re: Confusion on e- Notes

Postby 404995677 » Mon Oct 23, 2017 10:01 pm

He also said in the lecture that the chemical short hands are encouraged to be used on quizzes and tests


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