Talk:List of oxidation states of the elements

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use this link Nergaal (talk) 19:18, 25 December 2007 (UTC)

Disagreement with CRC Press[edit]

There are many differences from the CRC press periodic table's list of oxidation states http://www.chemnetbase.com/periodic_table/01_17_86.pdf. Are they listing common or all? How did we select which to label common? —Preceding unsigned comment added by Lucent (talkcontribs) 04:29, 22 December 2008 (UTC)

They are only listing the more usual oxidation states. Our list is based on Greenwood & Earnshaw (see the ref. at the bottom), which is much more comprehensive, with only a few extra oxidation states added (each addition is clearly labeled and referenced). The oxidation states that are labeled here as "common" are the ones labeled as common by G&E. I think it is safe to bet that no new "common" oxidation states will be discovered--all new discoveries are pretty exotic. --Itub (talk) 15:05, 22 December 2008 (UTC)

Astatine +7[edit]

Are we sure about this?

http://books.google.com/books?id=UPBKxgY20lEC&pg=PA220&lpg=PA220#v=onepage

This indicates that AtO4- doesn't exist, and because of the inert pair effect and lack of references, AtF7 seems unlikely. —Preceding unsigned comment added by Kazyan1 (talkcontribs) 05:32, 9 May 2010 (UTC)

AtO
4
actually exists; however, not many books mention it, for reasons discussed at Talk:Astatine. AtF
7
isn't known yet AFAIK. Double sharp (talk) 10:12, 16 June 2012 (UTC)

Fractional oxidation states[edit]

We need a good way to show these. E.g. for O, we have, just listing the obvious ones: −½ (superoxides), −⅓ (ozonides), +½ (dioxygenyl). Doubtless C has a lot more, as another example. Double sharp (talk) 12:07, 13 October 2013 (UTC)

Thulium(IV) - probably incorrect[edit]

The reference quoted for this pradyot patnaik's handbook of inorganic chemicals- yes he does say that +4 compounds are known (unreferenced) - but he is alone in this as far as I can tell. For example a recent review of Ln(IV) compounds in the Encyclopedia of Inorganic and Bioinorganic Chemistry DOI: 10.1002/9781119951438.eibc2033 does not mention Tm(IV) at all. To include this we need a reliable corroborative referenceAxiosaurus (talk) 10:50, 22 March 2014 (UTC)

I've removed it here, pending reliable corroborative references. I see the Tm(IV) claim is already marked as "dubious" in Thulium#Chemical properties. Double sharp (talk) 14:21, 22 April 2014 (UTC)