Roentgenium
Stability and half-lives

Roentgenium

Section Title: Stability and half-lives
Table Section Text: None

Isotope	Half-life	Decay mode	Discovery year	Discovery reaction

Recent publications	Ref	NUBASE 2016

272Rg	3.8 ms	4.5 ms	α	1994	209Bi(64Ni,n)

274Rg	14 ms	29 ms	α	2004	278Nh(—,α)

278Rg	4.2 ms	8 ms	α	2006	282Nh(—,α)

279Rg	90 ms	180 ms	α	2003	287Mc(—,2α)

280Rg	4.6 s	4.3 s	α, EC	2003	288Mc(—,2α)

281Rg	17 s	24 s	SF, α	2010	293Ts(—,3α)

282Rg	1.7 min	1.6 min	α	2010	294Ts(—,3α)

283Rg	5.1 min	—	SF	1999	283Cn(e−,νe)

286Rg	10.7 min	—	α	1998	290Fl(e−,νeα)

Sentence(s)

Nine different isotopes of roentgenium have been reported with masses of 272, 274, 278–283, and 286.

final_sentence: Nine different isotopes of roentgenium have been reported with masses of 272, 274, 278–283, and 286.