Talk:Ionic radius
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Ionic Radius[edit]
It would nice if you put the Ionic Radius chart in atomic order.
Perhaps a reference for these data could be provided?
Some of the ionic radii are wrong! This table is worthless without reference! —Preceding unsigned comment added by 98.164.216.21 (talk) 22:23, 15 February 2009 (UTC)
What charge?[edit]
It makes no sense to list numbers without stating the charge of every ion listed. There is nothing like "ionic radius" of iron, osmium, etc. Who will guess it is Shannon radius calculated for six-coordinate high-spin Fe(3+) and e.g. not for Fe(2+)? The same for most elements. And one should not compare atomic radii obtained with different methods. If one list Shannon radius for iron, one should list Shannon radius for hydrogen(+), and it is negative. See e.g. http://abulafia.mt.ic.ac.uk/shannon/radius.php. Sincerely, Witold, Poland, 87.207.174.157 22:41, 19 September 2006 (UTC), a casual visitor.
New table[edit]
I have replaced the two tables with one sortable table that includes radii for different oxidation states and high/low spin. I have not included hydrogen. --Axiosaurus (talk) 14:42, 24 December 2007 (UTC)
- Why is hydrogen not included? Double sharp (talk) 15:09, 9 February 2012 (UTC)
- Shannon did include H but as H+ and with a negative radius. also the H- ion is notoriously variable in it's apparent sizeAxiosaurus (talk) 09:30, 29 November 2013 (UTC)
- Notoriously variable? To what is this feature due? In what compounds?--188.26.17.81 (talk) 18:22, 7 November 2015 (UTC)
- "To what is this feature due" is one of the most laughable examples of English hypercorrection I've seen, but you may wish to enlighten yourself with hydride. The main reason is that the single proton of H− cannot adequately control both electrons and hence the ion is rather diffuse, yet "squishy". Double sharp (talk) 07:32, 4 September 2016 (UTC)
- Notoriously variable? To what is this feature due? In what compounds?--188.26.17.81 (talk) 18:22, 7 November 2015 (UTC)
- Shannon did include H but as H+ and with a negative radius. also the H- ion is notoriously variable in it's apparent sizeAxiosaurus (talk) 09:30, 29 November 2013 (UTC)
Proton ionic radius[edit]
Can the radius of proton be measured like an ordinary ionic radius in compounds like hydrogen alkalide based on cryptands?--188.26.17.81 (talk) 19:00, 7 November 2015 (UTC)
Electron (ionic) radius[edit]
I think that some details re electron radius measurement in compounds where electron is an anion like electrides would be a useful addition to article.--5.2.200.163 (talk) 17:34, 1 February 2016 (UTC)