hahnium
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hahnium (hän`ēəm), symbol Ha, former suggested name for both element 105, now called dubnium dubnium , artificially produced radioactive chemical element; symbol Db; at. no. 105; mass number of most stable isotope 262; m.p., b.p., and sp. gr. unknown; valence +5.
..... Click the link for more information. , and element 108, now called hassium hassium , artificially produced radioactive chemical element; symbol Hs; at. no. 108; mass number of most stable isotope 265; m.p., b.p., sp. gr., and valence unknown.
..... Click the link for more information. .

hahnium

a name once advanced by the American Chemical Society for a transuranic element, artificially produced from californium, atomic no.: 105; half-life of most stable isotope, ²⁶²Ha: 40 seconds

hahnium [′hän·ē·əm]

(chemistry)

The name suggested by workers in the United States for element 105. Symbolized Ha.

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hahnium (redirected from Element naming controversy)

hahnium
(redirected from Element naming controversy)