bohrium

[ bawr-ee-uhm ]

noun

, Chemistry, Physics.

1. a superheavy, synthetic, radioactive element with a very short half-life. : Bh; : 107.

bohrium

/ ˈbɔːrɪəm /

noun

1. a transuranic element artificially produced in minute quantities by bombarding ²⁰⁴Bi atoms with ⁵⁴Cr nuclei. Symbol: Bh; atomic no: 107 Former nameselement 107unnilseptium

bohrium

/ bôr′ē-əm /

1. A synthetic, radioactive element that is produced by bombarding bismuth with chromium ions. Its most long-lived isotopes have mass numbers of 261, 262, and 264 with half-lives of 11.8 milliseconds, 0.1 second, and 0.44 second, respectively. Atomic number 107.
2. See Periodic Table

Word History and Origins

Origin of bohrium¹

First recorded in 1970–75; officially assigned to element 107 in 1997; named after Danish physicist Niels Bohr ; -ium ( def )

Word History and Origins

Origin of bohrium¹

C20: after Neils Bohr