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

Example Sentences

Ghiorso, Nuclear Chemist James Harris, Finnish Physicists Matti Nurmia and Kari Eskda, the same team that discovered element 104, suggested that the new element be named hahnium, in honor of Otto Hahn, the German chemist who in 1938 discovered nuclear fission.

From Time Magazine Archive