found: Work cat.: Chemical identification of a long-lived isotope of dubnium, a descendant of element 115, 2006:p. 3 (If the assignment of Element 115 is correct for the parent, the 5-[alpha]-decay descendant would be dubnium.)
found: Hall, L.E. The transactinides, 2010:t.p. (dubnium) p. 33 (Dubnium is a member of group 5, with homologues of vanadium, niobium, and tantalum. Four dubnium compounds have been synthesized: DbCl₅, DbBr₅, DbOCl₃, and DbOBr₃)
found: Wikipedia, Sept. 18, 2012(Dubnium is a chemical element with the symbol Db and atomic number 105, named after the town of Dubna in Russia, where it was first produced. It is a synthetic element (an element that can be created in a laboratory but is not found in nature) and radioactive; the most stable known isotope, dubnium-268, has a half-life of approximately 28 hours; Element category: transition metal; The Soviet (later, Russian) team proposed the name nielsbohrium (Ns) in honor of the Danish nuclear physicist Niels Bohr. The American team proposed that the new element should be named hahnium (Ha), in honor of the late German chemist Otto Hahn. Consequently hahnium was the name that most American and Western European scientists used and appears in many papers published at the time, and nielsbohrium was used in the Soviet Union and Eastern Bloc countries. An element naming controversy erupted between the two groups. The International Union of Pure and Applied Chemistry (IUPAC) thus adopted unnilpentium (Unp) as a temporary, systematic element name. Attempting to resolve the issue, in 1994, the IUPAC proposed the name joliotium (Jl), after the French physicist Frédéric Joliot-Curie, which was originally proposed by Soviet team for element 102, later named nobelium. The two principal claimants still disagreed about the names of elements 104-106. However, in 1997 they resolved the dispute and adopted the current name, dubnium (Db), after the Russian town of Dubna, the location of the Joint Institute for Nuclear Research)
found: WebElements periodic table of the elements, viewed Sept. 18, 2012(Dubnium; a synthetic element that is not present in the environment at all; element 105; Symbol: Db; Atomic number: 105; Atomic weight: [268]; Group in periodic table: 5; Group name: (none); Period in periodic table: 7; Block in periodic table: d-block; Colour: unknown, but probably metallic and silvery white or grey in appearance; Classification: Metallic)
found: The element dubnium, via It's elemental website, Sept. 18, 2012(Db; Dubnium; Atomic Number: 105; Atomic Weight: 270; Element Classification: Metal; Period Number: 7; Group Number: 5; Group Name: none; Radioactive and Artificially Produced)
found: ChemicalElements.com, Sept. 18, 2012(Name: Dubnium Symbol: Db; Atomic Number: 105; Atomic Mass: (262.0) amu; Number of Protons/Electrons: 105; Number of Neutrons: 157; Classification: Transition Metal; Other Names: Unnilpentium (Unp), Joliotium (Jl), Hahnium (Ha))
found: OCLC, Sept. 18, 2012(titles: Chemical isolation of dubnium (element 105) in fluoride media; Solution chemistry of element 105; Chemical and nuclear properties of lawrencium (element 103) and hahnium (element 105); On-line gas chromatographic studies of rutherfordium (element 104), hahnium (element 105), and homologs; Redox reactions for group 5 elements, including element 105, in aqueous solutions)
