Electron Configuration for Ions

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Jennifer_Lam_1A
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Electron Configuration for Ions

Postby Jennifer_Lam_1A » Mon Oct 24, 2016 6:01 pm

How would you write the electron configuration for Iodine2- using the noble gas abbreviation? Would you use [Xe] or [Kr]?
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Ariana de Souza 4C
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Re: Electron Configuration for Ions

Postby Ariana de Souza 4C » Mon Oct 24, 2016 6:06 pm

I feel like it would be Xe, not Kr -- it just makes more sense that way
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Cliff Danza 3F
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Re: Electron Configuration for Ions

Postby Cliff Danza 3F » Mon Oct 24, 2016 7:37 pm

I believe the correct way is to use the previous noble gas for the element, which would be Kr. If you were to use (Xe)6s^1 then you are describing Cs.
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Vincent Tse 2B
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Re: Electron Configuration for Ions

Postby Vincent Tse 2B » Tue Oct 25, 2016 11:49 am

Since you're trying to find the configuration for I^-2, it should just be [Xe] 6s^1
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Chem_Mod
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Re: Electron Configuration for Ions

Postby Chem_Mod » Tue Oct 25, 2016 4:59 pm

Good answer Vincent! Use [Xe], because when you add 2 electrons you get the same configuration as [Cs].
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