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Isotopes of darmstadtium



Darmstadtium (Ds) has no stable isotopes. A standard atomic mass cannot be given.

Additional recommended knowledge

Darmstadtium has also been called hahnium, eka-platinum, and, jokingly, policium.

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
267Ds 110 157 267.14434(39)# 3(+6-2) µs 9/2+#
268Ds 110 158 268.14380(54)# 100# µs 0+
269Ds 110 159 269.14512(15)# 230(110) µs [179(+245-66) µs] 3/2+#
270Ds 110 160 270.14472(31)# 160(100) µs [0.10(+14-4) ms] 0+
270mDs 1140(70) keV 10(6) ms [6.0(+82-22) ms] (10)(-#)
271Ds 110 161 271.14606(11)# 210(170) ms 11/2-#
271mDs 29(29) keV 1.3(5) ms 9/2+#
272Ds 110 162 272.14632(70)# 1# s 0+
273Ds 110 163 273.14886(14)# 0.17(+17-6) ms 13/2-#
273m1Ds 198(20) keV 120 ms 3/2+#
273m2Ds 290(40) keV
274Ds 110 164 274.14949(53)# 2# s 0+
275Ds 110 165 275.15218(48)# 2# s
276Ds 110 166 276.15303(65)# 5# s 0+
277Ds 110 167 277.15565(104)# 5# s 11/2+#
278Ds 110 168 278.15647(73)# 10# s 0+
279Ds 110 169 279.15886(80)# 0.18(+5-3) s
280Ds 110 170 280.15980(91)# 11(6) s 0+
281Ds 110 171 281.16206(78)# 9.6 s 3/2+#

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 meitnerium Isotopes of darmstadtium Isotopes of roentgenium
Index to isotope pages
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Isotopes_of_darmstadtium". A list of authors is available in Wikipedia.
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