Meaning of dubnium in English:


Pronunciation /ˈdʌbnɪəm/


(also Db)
mass noun
  • The chemical element of atomic number 105, a very unstable element made by high-energy atomic collisions.

    See also hahnium, joliotium

    ‘Following up on berkelium, dubnium and californium, researchers at the University of Berkely in California, stumbled upon am element with atomic number 117 about a year ago.’
    • ‘For instance, after five alpha particles have been emitted we are left with element 105, which is called dubnium.’
    • ‘Similar controversies attended the much more recent synthesis and naming of the heaviest element of the group, dubnium.’
    • ‘Nine isotopes of Dubnium are now recognized.’


1990s modern Latin, from Dubna in Russia, site of the Joint Nuclear Institute.