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Isotopes of gallium



Gallium (Ga)
Standard atomic mass: 69.723(1) u

Additional recommended knowledge

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
56Ga 31 25 55.99491(28)# 3+#
57Ga 31 26 56.98293(28)# 1/2-#
58Ga 31 27 57.97425(23)# 2+#
59Ga 31 28 58.96337(18)# 3/2-#
60Ga 31 29 59.95706(12)# 70(10) ms (2+)
61Ga 31 30 60.94945(6) 168(3) ms 3/2-
62Ga 31 31 61.944175(30) 116.18(4) ms 0+
63Ga 31 32 62.9392942(14) 32.4(5) s (3/2-)
64Ga 31 33 63.9368387(22) 2.627(12) min 0(+#)
64mGa 42.85(8) keV 21.9(7) µs 2+
65Ga 31 34 64.9327348(9) 15.2(2) min 3/2-
66Ga 31 35 65.931589(3) 9.49(7) h 0+
67Ga 31 36 66.9282017(14) 3.2612(6) d 3/2-
68Ga 31 37 67.9279801(16) 67.71(9) min 1+
69Ga 31 38 68.9255736(13) STABLE 3/2- 0.60108(9)
70Ga 31 39 69.9260220(13) 21.14(3) min 1+
71Ga 31 40 70.9247013(11) STABLE 3/2- 0.39892(9)
72Ga 31 41 71.9263663(11) 14.095(3) h 3-
72mGa 119.66(5) keV 39.68(13) ms (0+)
73Ga 31 42 72.9251747(18) 4.86(3) h 3/2-
74Ga 31 43 73.926946(4) 8.12(12) min (3-)
74mGa 59.571(14) keV 9.5(10) s (0)
75Ga 31 44 74.9265002(26) 126(2) s (3/2)-
76Ga 31 45 75.9288276(21) 32.6(6) s (2+,3+)
77Ga 31 46 76.9291543(26) 13.2(2) s (3/2-)
78Ga 31 47 77.9316082(26) 5.09(5) s (3+)
79Ga 31 48 78.93289(11) 2.847(3) s (3/2-)#
80Ga 31 49 79.93652(13) 1.697(11) s (3)
81Ga 31 50 80.93775(21) 1.217(5) s (5/2-)
82Ga 31 51 81.94299(32)# 0.599(2) s (1,2,3)
83Ga 31 52 82.94698(32)# 308(1) ms 3/2-#
84Ga 31 53 83.95265(43)# 0.085(10) s
85Ga 31 54 84.95700(54)# 50# ms [>300 ns] 3/2-#
86Ga 31 55 85.96312(86)# 30# ms [>300 ns]

Notes

  • Commercially available materials may have been subjected to an undisclosed or inadvertent isotopic fractionation. Substantial deviations from the given mass and composition can occur.
  • 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.


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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Isotopes_of_gallium". A list of authors is available in Wikipedia.
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