hahnium

[ hah-nee-uhm ]

noun

, Chemistry, Physics.

1. a proposed but never officially adopted name for element 105, which was instead named dubnium. : Ha

hahnium

/ ˈhɑːnɪəm /

noun

1. 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 Now called dubnium

Word History and Origins

Origin of hahnium¹

First recorded in 1965–70; named after German chemist Otto Hahn ( def ); -ium ( def )

Word History and Origins

Origin of hahnium¹

C20: named after Otto Hahn