Seaborgium
Isotopes

Seaborgium

Section Title: Isotopes
Table Section Text: None

Isotope	Half-life	Decay mode	Discovery year	Reaction

258Sg	3 ms	SF	1994	209Bi(51V,2n)

259Sg	600 ms	α	1985	207Pb(54Cr,2n)

260Sg	4 ms	SF, α	1985	208Pb(54Cr,2n)

261Sg	200 ms	α, EC, SF	1985	208Pb(54Cr,n)

261mSg	92 μs	IT	2009	208Pb(54Cr,n)

262Sg	7 ms	SF, α	2001	270Ds(—,2α)

263Sg	1 s	α	1994	271Ds(—,2α)

263mSg	120 ms	α, SF	1974	249Cf(18O,4n)

264Sg	37 ms	SF	2006	238U(34Si,4n)

265Sg	8 s	α	1993	248Cm(22Ne,5n)

265mSg	16.2 s	α	1993	248Cm(22Ne,5n)

266Sg	360 ms	SF	2004	270Hs(—,α)

267Sg	1.4 min	SF, α	2004	271Hs(—,α)

269Sg	14 min	α	2010	285Fl(—,4α)

271Sg	2.4 min	α	2003	287Fl(—,4α)

Sentence(s)

The isotopes of seaborgium have half-lives ranging from 92 microseconds for ²⁶¹ᵐSg to 14 minutes for ²⁶⁹Sg.

final_sentence: The isotopes of seaborgium have half-lives ranging from 92 microseconds for ²⁶¹ᵐSg to 14 minutes for ²⁶⁹Sg.