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.

Notes and references

Notes

  1. ↑ 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

  1. ↑ 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).

External links

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