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hahnium

The Oxford Pocket Dictionary of Current English | 2009 | Copyright

hahn·i·um / ˈhänēəm/ • n. the name formerly proposed by the American Chemical Society for the chemical element of atomic number 105 (dubnium), and by IUPAC for element 108 (hassium).

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"hahnium." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 11 Feb. 2012 <http://www.encyclopedia.com>.

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hahnium

The Columbia Encyclopedia, 6th ed. | 2008 | Copyright

hahnium , symbol Ha, former suggested name for both element 105, now called dubnium , and element 108, now called hassium .

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hahnium

World Encyclopedia | 2005 | Copyright

hahnium (symbol Ha) The former name of both dubnium and hassium. It was named after German physical chemist Otto Hahn.

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"hahnium." World Encyclopedia. 2005. Encyclopedia.com. (February 11, 2012). http://www.encyclopedia.com/doc/1O142-hahnium.html

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Free newspaper and magazine articles

	Chemistry at periodic table's edge. (element 105, dubbed hahnium, is observed) Magazine article from: Science News; 10/10/1987
	A chemical glance at short-lived elements. Magazine article from: Science News; 9/8/1990
	Element 106 takes a seat at the table. (seaborgium included in periodic... Magazine article from: Science News; 7/19/1997