Group 3
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Group 3 of the periodic table comprises the elements scandium, yttrium, lanthanum and actinium.[Note 1][1] The group 3 elements are, by definition, transition elements.[2]
Notes and references
Notes
- ↑ Other, minority definitions either include the lanthanoids and actinoids in group 3, or substitute lutetium and lawrencium for lanthanum and actinium: there is no basis in periodicity for such changes.
References
- ↑ Periodic Table of the Elements; International Union of Pure and Applied Chemistry (IUPAC), <http://old.iupac.org/reports/periodic_table/index.html>. (accessed 25 December 2010).
- ↑ Nomenclature of Inorganic Chemistry; IUPAC Recommendations 2005; Royal Society of Chemistry: Cambridge, 2005; pp 51–52. ISBN 0-85404-438-8, <http://www.iupac.org/publications/books/rbook/Red_Book_2005.pdf>.
External links
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