Definition of Dubnium. Meaning of Dubnium. Synonyms of Dubnium

- Dubnium is a synthetic chemical element; it has symbol Db and atomic number 105. It is highly radioactive: the most stable known isotope, dubnium-268...
- Soviet Union and the United States independently created rutherfordium and dubnium. The naming and credit for synthesis of these elements remained unresolved...
- table. Group 5 contains vanadium (V), niobium (Nb), tantalum (Ta) and dubnium (Db). This group lies in the d-block of the periodic table. This group...
- was involved in the discovery of elements 104 and 105 (rutherfordium and dubnium, respectively). Harris was the head of the Heavy Isotopes Production Group...
- Dubnium (105Db) is a synthetic element, thus a standard atomic weight cannot be given. Like all synthetic elements, it has no stable isotopes. The first...
- There are exceptions, however, including several isotopes of curium and dubnium. Some heavier elements in this series, around atomic numbers 110–114, are...
- IUPAC suggested a set of names for elements 104 through 109, in which dubnium (Db) became element 104 and rutherfordium became element 106. This recommendation...
- in group 5. Eka-tantalum is actually the synthetic superheavy element dubnium (105). Mendeleev's 1869 table had implicitly predicted a heavier analog...
- (Ha) in honor of Otto Hahn. IUPAC recommended that element 105 be named dubnium, after Dubna. The element was discovered almost simultaneously by two laboratories...
- dubnium, also later proposed for what is now h****ium); joliotium after Irène Joliot-Curie (now nobelium, also later proposed for what is now dubnium);...