Seaborgium

Seaborgium (half-life of 2.4 minutes. Its chemistry probably resembles that of tungsten.

History

Element 106 was discovered almost simultaneously by two different laboratories. In June 1974, an American research team led by s,

Because their work was independently confirmed first, the Americans suggested the name seaborgium to honor the American chemist Glenn T. Seaborg credited as a member of the American team along with Ghiorso, J. M. Nitschke, J. R. Alonso, C. T. Alonso, M. Nurmia, E. Kenneth Hulet, and R. W. Lougheed in recognition of his participation in the discovery of several other actinides. The name selected by the team became controversial. An international committee decided in 1992 that the Berkeley and Dubna laboratories should share credit for the discovery.

An einsteinium during Albert Einstein's life. In 1997, as part of a compromise involving elements 104 to 108, the name seaborgium for element 106 was recognized internationally.

Isotopes

Main article: Isotopes of seaborgium

There are 12 known isotopes of Seaborgium, the longest-lived of which is ²⁷¹Sg which decays through spontaneous fission. It has a half-life of 2.4 minutes. The shortest-lived isotope is ²⁵⁸Sg which also decays through alpha decay and spontaneous fission. It has a half-life of 2.9 ms.

References

• Los Alamos National Laboratory - Seaborgium
• National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (retrieved Sept. 2006).