noun
- Plural of hahnium; atoms or samples of the chemical element hahnium (now called dubnium, element 105).
Usage: chemistry; historical; The name 'hahnium' was proposed in the 1970s but is no longer the official IUPAC name; the element is now called dubnium.
Examples
- Scientists studied hahniums in the laboratory to understand the properties of superheavy elements.
- The discovery of hahniums contributed to the expansion of the periodic table.
- Early research on hahniums helped chemists learn about element 105.
- Hahniums are extremely rare and difficult to produce in particle accelerators.