Reference: The preceding article is reproduced from:

Seaborg, Glenn T., Prospects for further considerable extension of the periodic table, Journal of Chemical Education, Volume 46, 1969, pages 626

for classroom use in Pima Community College chemistry courses. Additional References Additional references on the transuranium elements can be found on the Journal of Chemical Education website. Seaborg, Glenn T., Nuclear synthesis and identification of new elements, Journal of Chemical Education, Volume 62, Issue 5, May, 1985, pages 392-395. http://www.jce.divched.org/cgi-bin/JCE/jce-idx.pl?type=goto&volume=62&issue=5&page=392 Seaborg, Glenn T., The Transuranium Elements, Journal of Chemical Education, Volume 62, Issue 6, June, 1985, pages 463-467. http://www.jce.divched.org/cgi-bin/JCE/jce-idx.pl?type=turn&entity=JCE06206031&byte=98259&isize=M