Atomistry » Rutherfordium
Atomistry »
  Rutherfordium »
    Isotopes »
    Energy »
    Production »
    Application »
    Properties »

Element Dubnium (Kurchatovium, Joliotium, Unnilpentium, Nielsbohrium, Hahnium), Db

History

Dubnium (named after Dubna, Russia) was first synthesized in 1967 at the Joint Institute for Nuclear Research in Dubna, Russia by Georgy Nikolaevich Flerov et al producing nuclide 261Db by bombarding 243Am with 22Ne.

In 1970 researchers led by Albert Ghiorso at the Berkeley Laboratory of the University of California by bombardment of californium with nitrogen ions and named Hahnium after Otto Hahn (symbol Ha). Also this element was named Nielsbohrium (symbol Ns) in honor of Niels Bohr, meanwhile systematic International Union of Pure and Applied Chemistry (IUPAC) name Unnilpentium (symbol Unp). Another IUPAC suggested name was Joliotium (symbol Jl). In 1997, at the final elements christening during the International Union of Pure and Applied Chemistry (IUPAC) Council meeting in Geneva, element 104 was named Dubnium and element 105 got the name and symbol Dubnium (symbol Db).

Neighbours

Last articles

Zn in 7O75
Zn in 7O73
Zn in 7O4I
Zn in 7O72
Zn in 7O4J
Zn in 7NVR
Zn in 7NVY
Zn in 7NVZ
Zn in 7NW0
Zn in 7O4K
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy