Ion notation

  1. 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. jcsd
  3. Borek

    Staff: Mentor

    Charge is always indicated after the ion, + or - before the name may refer to optical rotation. See

    http://old.iupac.org/publications/books/rbook/Red_Book_2005.pdf

    scroll down to page 47, IR-3.2.

    (you may also check page 25, IR-2.3.2 and page 31, IR-2.8.1).

    --
     
  4. Interesting. My textbook seems to use them interchangeably for some reason.
     
  5. Some books will flip the order in which A and Z are displaced (that was the case of my first chemistry textbook).

    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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