Source of the photo
http://commons.wikimedia.org/wiki/File:Electron_shell_105_dubnium.png
Author of the description
Gruiz Katalin
Atomic number 105
Atomic mass 261.9 g.mol -1
Electronic shell [Rn] 5f14 6d3 7s2
Isotopes 9
Discovered Albert Ghiorso in 1970
The atomic weight of nine known isotopes range from 255 to 263; the longest-lived isotope, dubnium 268 has an half-life of 32 hours.
Applications
Dubnium does not have any application and little is known about it.
Source of description