hahnium

Meanings

1. 1
   noun

   obsolete, a proposed name used during disputes over the naming of heavy synthetic elements, especially dubnium and hassium

   Some twentieth-century tables labeled element 105 hahnium before dubnium became the accepted name.

Formed from Hahn + -ium in honor of German chemist Otto Hahn. Competing research groups applied hahnium to different newly synthesized elements during the transfermium naming controversy; neither use became the final international name.

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