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HighBeam Encyclopedia - hahnium (Site not responding. Last check: 2007-10-23) |
 | | HAHNIUM [hahnium], symbol Ha, former suggested name for both element 105, now called dubnium, and element 108, now called hassium. |
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| www.encylopedia.com /html/I/IX-hahnium.asp (75 words) |
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