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Ion notationby ldv1452
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#1
Aug2810, 08:37 PM

P: 69

I've seen ions notated with the postive or negative sign both before and after the element name (usually after). Is this just preference or does its placement indicate anything?



#2
Aug2910, 03:41 AM

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P: 23,363

Charge is always indicated after the ion, + or  before the name may refer to optical rotation. See
http://old.iupac.org/publications/bo..._Book_2005.pdf scroll down to page 47, IR3.2. (you may also check page 25, IR2.3.2 and page 31, IR2.8.1).  


#3
Aug3010, 03:42 PM

P: 69

Interesting. My textbook seems to use them interchangeably for some reason.



#4
Aug3010, 07:11 PM

P: 226

Ion notation
But I have never found a textbook indicating charges in the "wrong" side. Perhaps it's just an old notation that has since disappeared. 


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