bohrium(redirected from Eka-rhenium)
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n. Symbol Bh
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.
[After Niels Henrik David Bohr.]
(Elements & Compounds) a transuranic element artificially produced in minute quantities by bombarding 204Bi atoms with 54Cr nuclei. Symbol: Bh; atomic no: 107. Former names: element 107 or unnilseptium
[C20: after Neils Bohr]
Symbol Bh A synthetic, radioactive element that is produced by bombarding bismuth with chromium ions. Its most stable isotope has a half-life of 0.44 second. Atomic number 107. See Periodic Table.
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|Noun||1.||bohrium - a transuranic element|