dubnium Synonyms

hahnium atomic number 105 eka-tantalum hassium element 105 DB unnilpentium ha nielsbohrium joliotium eka-hafnium eka-iridium eka-tungsten flerovium hafnon Jl transuranic transuranic element eka-platinum copernicium eka-rhenium chemical element element 104 rutherfordium unnilquadium element 106 seaborgium sg Bh bohrium meitnerium darmstadtium IUPAC chemical element db