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Isotopes of seaborgium



Seaborgium (Sg) has no stable isotopes. A standard atomic mass cannot be given.

Additional recommended knowledge

Seaborgium has also been called rutherfordium.

Table

nuclide
symbol
Z(p) N(n)  
isotopic mass (u)
 
half-life nuclear
spin
representative
isotopic
composition
(mole fraction)
range of natural
variation
(mole fraction)
excitation energy
258Sg 106 152 258.11317(45)# 3.3(10) ms [2.9(+13-7) ms] 0+
259Sg 106 153 259.11450(19)# 580(210) ms [0.48(+28-13) s] 1/2+#
260Sg 106 154 260.11442(4) 3.8(8) ms 0+
261Sg 106 155 261.11612(14)# 230(60) ms 7/2+#
262Sg 106 156 262.1164(3)# 8(3) ms [6.9(+38-18) ms] 0+
263Sg 106 157 263.11832(13)# 1.0(2) s 9/2+#
263mSg 100(70)# keV 120 ms 3/2+#
264Sg 106 158 264.11893(30)# 0.4# s 0+
265Sg 106 159 265.12111(6) 8(3) s 3/2+#
266Sg 106 160 266.12207(31)# 21(6) s 0+
267Sg 106 161 267.12443(29)# 19 ms
268Sg 106 162 268.12561(58)# 30# s 0+
269Sg 106 163 269.12876(70)# 35(23) s
270Sg 106 164 270.13033(66)# 10# min 0+
271Sg 106 165 271.13347(70)# 2.4(+43-10) min
272Sg 106 166 272.13516(82)# 1# h 0+
273Sg 106 167 273.13822(71)# 1# min

Notes

  • Values marked # are not purely derived from experimental data, but at least partly from systematic trends. Spins with weak assignment arguments are enclosed in parentheses.
  • Uncertainties are given in concise form in parentheses after the corresponding last digits. Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC which use expanded uncertainties.

References

  • Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
  • Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005).
  • Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
    • Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties, Nuc. Phys. A 729, pp. 3-128 (2003).
    • National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (retrieved Sept. 2005).
    • David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.


Isotopes of dubnium Isotopes of seaborgium Isotopes of bohrium
Index to isotope pages
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Isotopes_of_seaborgium". A list of authors is available in Wikipedia.
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