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Isotopes of copper



Copper (Cu) has two stable isotopes, 63Cu and 65Cu, along with a couple dozen radioisotopes. The vast majority of radioisotopes have half lives on the order of minutes or less; the longest lived, 67Cu, has a half life of 61.8 hours.
Standard atomic mass: 63.546(3) amu

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
52Cu 29 23 51.99718(28)# (3+)#
53Cu 29 24 52.98555(28)# <300 ns (3/2-)#
54Cu 29 25 53.97671(23)# <75 ns (3+)#
55Cu 29 26 54.96605(32)# 40# ms [>200 ns] 3/2-#
56Cu 29 27 55.95856(15)# 93(3) ms (4+)
57Cu 29 28 56.949211(17) 196.3(7) ms 3/2-
58Cu 29 29 57.9445385(17) 3.204(7) s 1+
59Cu 29 30 58.9394980(8) 81.5(5) s 3/2-
60Cu 29 31 59.9373650(18) 23.7(4) min 2+
61Cu 29 32 60.9334578(11) 3.333(5) h 3/2-
62Cu 29 33 61.932584(4) 9.673(8) min 1+
63Cu 29 34 62.9295975(6) STABLE 3/2- 0.6915(15) 0.68983-0.69338
64Cu 29 35 63.9297642(6) 12.700(2) h 1+
65Cu 29 36 64.9277895(7) STABLE 3/2- 0.3085(15) 0.30662-0.31017
66Cu 29 37 65.9288688(7) 5.120(14) min 1+
67Cu 29 38 66.9277303(13) 61.83(12) h 3/2-
68Cu 29 39 67.9296109(17) 31.1(15) s 1+
68mCu 721.6(7) keV 3.75(5) min (6-)
69Cu 29 40 68.9294293(15) 2.85(15) min 3/2-
69mCu 2741.8(10) keV 360(30) ns (13/2+)
70Cu 29 41 69.9323923(17) 44.5(2) s (6-)
70m1Cu 101.1(3) keV 33(2) s (3-)
70m2Cu 242.6(5) keV 6.6(2) s 1+
71Cu 29 42 70.9326768(16) 19.4(14) s (3/2-)
71mCu 2756(10) keV 271(13) ns (19/2-)
72Cu 29 43 71.9358203(15) 6.6(1) s (1+)
72mCu 270(3) keV 1.76(3) µs (4-)
73Cu 29 44 72.936675(4) 4.2(3) s (3/2-)
74Cu 29 45 73.939875(7) 1.594(10) s (1+,3+)
75Cu 29 46 74.94190(105) 1.224(3) s (3/2-)#
76Cu 29 47 75.945275(7) 641(6) ms (3,5)
76mCu 0(200)# keV 1.27(30) s (1,3)
77Cu 29 48 76.94785(43)# 469(8) ms 3/2-#
78Cu 29 49 77.95196(43)# 342(11) ms
79Cu 29 50 78.95456(54)# 188(25) ms 3/2-#
80Cu 29 51 79.96087(64)# 100# ms [>300 ns]

Notes

  • The precision of the isotope abundances and atomic mass is limited through variations. The given ranges should be applicable to any normal terrestrial material.
  • 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 nickel Isotopes of copper Isotopes of zinc
Index to isotope pages
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Isotopes_of_copper". A list of authors is available in Wikipedia.
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