Isotopes of seaborgium

Isotopes of seaborgium (₁₀₆Sg)
SF 13%	Preview warning: Infobox Sg isotopes: Decay product missing; pn2, ps2 for "dm2=SF 13%" cat#P Preview warning: Infobox Sg isotopes: Decay mode not recognised, input shown unedited "dm2=SF 13%" cat#D
SF27%	Preview warning: Infobox Sg isotopes: Decay product missing; pn2, ps2 for "dm2=SF" cat#P

Seaborgium (₁₀₆Sg) is a synthetic element and so has no stable isotopes. A standard atomic weight cannot be given. The first isotope to be synthesized was ²⁶³Sg in 1974. There are fourteen known radioisotopes from ²⁵⁷Sg to ²⁷¹Sg (except ²⁷⁰Sg) and five known isomers (^259mSg, ^261mSg, ^263mSg, ^265mSg, and ^267mSg). The longest-lived isotopes are ²⁶⁹Sg with a half-life of 13 minutes and ²⁶⁷Sg with a half-life of 9.8 minutes. Due to a low number of measurements, and the consequent overlapping measurement uncertainties at the confidence level corresponding to one standard deviation, a definite assignment of the most stable isotope cannot be made.

^ Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
^ Oganessian, Yu. Ts.; Utyonkov, V. K.; Shumeiko, M. V.; et al. (2023). "New isotope ²⁷⁶Ds and its decay products ²⁷²Hs and ²⁶⁸Sg from the ²³²Th + ⁴⁸Ca reaction". Physical Review C. 108 (024611). doi:10.1103/PhysRevC.108.024611.
^ Oganessian, Yu. Ts.; Utyonkov, V. K.; Ibadullayev, D.; et al. (2022). "Investigation of ⁴⁸Ca-induced reactions with ²⁴²Pu and ²³⁸U targets at the JINR Superheavy Element Factory". Physical Review C. 106 (24612). doi:10.1103/PhysRevC.106.024612. S2CID 251759318.

[NUBASE2020-1] Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.

[276Ds-2023-2] Oganessian, Yu. Ts.; Utyonkov, V. K.; Shumeiko, M. V.; et al. (2023). "New isotope ²⁷⁶Ds and its decay products ²⁷²Hs and ²⁶⁸Sg from the ²³²Th + ⁴⁸Ca reaction". Physical Review C. 108 (024611). doi:10.1103/PhysRevC.108.024611.

[PuCa2022-3] Oganessian, Yu. Ts.; Utyonkov, V. K.; Ibadullayev, D.; et al. (2022). "Investigation of ⁴⁸Ca-induced reactions with ²⁴²Pu and ²³⁸U targets at the JINR Superheavy Element Factory". Physical Review C. 106 (24612). doi:10.1103/PhysRevC.106.024612. S2CID 251759318.

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