a radioactive chemical element with a very short half-life: a transactinide produced by bombarding bismuth with high-energy nuclear particles: symbol, Bh; at. no. 107
Origin of bohriumModL, after Niels Bohr + -ium
An artificially produced radioactive element with atomic number 107 for which isotopes have been observed with mass numbers ranging from 260 to 275, all of which decay by alpha-particle emission. The isotope with mass number 264 has the longest confirmed half-life (1.3 seconds), although longer half-lifes have been reported for some of its heavier isotopes. See Periodic Table.
Origin of bohriumAfterNiels Henrik David Bohr
- A transuranic chemical element (symbol Bh) with an atomic number of 107.
Surname of Niels Bohr + + -ium