Talk:Group 3 element
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Poking around the web: group 3 does not seem to be well defined, due to the Lanthanides and Actinides. Some tables list Lanthanum and Actinium as members of group 3, while others list Lutetium and Lawrencium. Another I found left all of these off. Does anyone know the IUPAC standard? -- hike395 14:16, 4 Sep 2003 (UTC)
- I went with the Wikipedia standards found in the periodic table entry. If someone knows the IUPAC authoritatively, they should update here but AFAIK the current (Dec 3, 03) version should be correct. fvincent 20:03, Dec 2, 2003 (UTC)
- The IUPAC table is at http://www.iupac.org/reports/periodic_table/index.html. I'm not sure if this helps or not. Eric119 01:34, Feb 19, 2004 (UTC)
Sc, Y, La and Ac are group 3 elements, but lanthanides and actnides aren't. In the article Periodic table group it's said: A periodic table group is a vertical column in the periodic table of the elements. Lanthanides and actinides aren't in that vertical column.