Definition of hahnium in English:

hahnium

Pronunciation /ˈhänēəm/ /ˈhɑniəm/

noun

  • The name formerly proposed by the American Chemical Society for the chemical element of atomic number 105 (dubnium), and by IUPAC for element 108 (hassium).

    ‘The heaviest element whose discovery has been previously confirmed is element 105, hahnium.’
    • ‘The name ‘bohrium ‘was recommended for 107 (instead of GSI's choice of nielsbohrium), and ‘hahnium ‘for 108 (instead of GSI's choice of hassium).’’
    • ‘Some scientists still use the earlier name of hahnium because it had been used for about 25 years.’
    • ‘Investigation of the chemical properties of the actinides was followed more recently by chemical studies of the first three transactinides - rutherfordium, hahnium, and seaborgium.’
    • ‘They proposed the name hahnium - after the late German scientist Otto Hahn - and symbol Ha.’

Origin

1970s named in honor of Otto Hahn (see Hahn, Otto).