Electron configuration

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George_Zhu
Posts: 29
Joined: Mon Jun 17, 2019 7:23 am

Electron configuration

Postby George_Zhu » Thu Jul 11, 2019 2:21 pm

Can Ca2+ 's electron configuration be written as [Ar] ?

Jeril Joseph 1B
Posts: 55
Joined: Mon Jun 17, 2019 7:23 am
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Re: Electron configuration

Postby Jeril Joseph 1B » Thu Jul 11, 2019 3:40 pm

I don't think we can do that. Although they're isoelectronic, they don't necessarily have the same properties because they have a different amount of protons. I believe you would go off of the previous noble gas, which is Neon, and then write the 3s orbital and 3p orbital. So, the configuration would be [Ne] 3s^2 3p^6.

Brian Kwak 1D
Posts: 88
Joined: Fri Sep 28, 2018 12:17 am

Re: Electron configuration

Postby Brian Kwak 1D » Thu Jul 11, 2019 4:21 pm

It depends on the question if they ask for the ‘full ground state’ then you cant use the short hand, but if they don’t then you could write it as [Ar] to represent that it lost the 2 electrons from the +2 charge. If the question states you can use the abbreviation then yes, if not then no.

simmoneokamoto3K
Posts: 50
Joined: Mon Jun 17, 2019 7:22 am

Re: Electron configuration

Postby simmoneokamoto3K » Sun Jul 14, 2019 4:41 pm

No, you would have to write out Ca as a ground configuration initially and then at the very end with your final electron configuration, remove two electrons as appropriate for Ca^2+


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