Isotopes of zinc
Template:Short description Template:More footnotes Template:Infobox zinc isotopes Naturally occurring zinc (30Zn) is composed of the 5 stable isotopes 64Zn, 66Zn, 67Zn, 68Zn, and 70Zn with 64Zn being the most abundant (48.6% natural abundance). Twenty-eight radioisotopes have been characterised with the most stable being 65Zn with a half-life of 244.26 days, and then 72Zn with a half-life of 46.5 hours. All of the remaining radioactive isotopes have half-lives that are less than 14 hours and the majority of these have half-lives that are less than 1 second. This element also has 10 meta states.
Zinc has been proposed as a "salting" material for nuclear weapons. A jacket of isotopically enriched 64Zn, irradiated by the intense high-energy neutron flux from an exploding thermonuclear weapon, would transmute into the radioactive isotope 65Zn with a half-life of 244 days and produce approximately 1.115 MeV[1] of gamma radiation, significantly increasing the radioactivity of the weapon's fallout for several years. Such a weapon is not known to have ever been built, tested, or used.[2]
List of isotopes
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Template:Isotopes table
|-id=Zinc-54
| 54Zn
| style="text-align:right" | 30
| style="text-align:right" | 24
| 53.99388(23)#
| 1.8(5) ms
| 2p
| 52Ni
| 0+
|
|
|-id=Zinc-55
| rowspan=2|55Zn
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 25
| rowspan=2|54.98468(43)#
| rowspan=2|19.8(13) ms
| β+, p (91.0%)
| 54Ni
| rowspan=2|5/2−#
| rowspan=2|
| rowspan=2|
|-
| β+ (9.0%)
| 55Cu
|-id=Zinc-56
| rowspan=2|56Zn
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 26
| rowspan=2|55.97274(43)#
| rowspan=2|32.4(7) ms
| β+, p (88.0%)
| 55Ni
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β+ (12.0%)
| 56Cu
|-id=Zinc-57
| rowspan=2|57Zn
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 27
| rowspan=2|56.96506(22)#
| rowspan=2|45.7(6) ms
| β+, p (87%)
| 56Ni
| rowspan=2|7/2−#
| rowspan=2|
| rowspan=2|
|-
| β+ (13%)
| 57Cu
|-id=Zinc-58
| rowspan=2|58Zn
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 28
| rowspan=2|57.954590(54)
| rowspan=2|86.0(19) ms
| β+ (99.3%)
| 58Cu
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β+, p (0.7%)
| 57Ni
|-id=Zinc-59
| rowspan=2|59Zn
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 29
| rowspan=2|58.94931189(81)
| rowspan=2|178.7(13) ms
| β+ (99.90%)
| 59Cu
| rowspan=2|3/2−
| rowspan=2|
| rowspan=2|
|-
| β+, p (0.10%)
| 58Ni
|-id=Zinc-60
| 60Zn
| style="text-align:right" | 30
| style="text-align:right" | 30
| 59.94184132(59)
| 2.38(5) min
| β+
| 60Cu
| 0+
|
|
|-id=Zinc-61
| 61Zn
| style="text-align:right" | 30
| style="text-align:right" | 31
| 60.939507(17)
| 89.1(2) s
| β+
| 61Cu
| 3/2−
|
|
|-id=Zinc-62
| 62Zn
| style="text-align:right" | 30
| style="text-align:right" | 32
| 61.93433336(66)
| 9.193(15) h
| β+
| 62Cu
| 0+
|
|
|-id=Zinc-63
| 63Zn
| style="text-align:right" | 30
| style="text-align:right" | 33
| 62.9332111(17)
| 38.47(5) min
| β+
| 63Cu
| 3/2−
|
|
|-id=Zinc-64
| 64Zn
| style="text-align:right" | 30
| style="text-align:right" | 34
| 63.92914178(69)
| colspan=3 align=center|Observationally Stable[n 1]
| 0+
| 0.4917(75)
|
|-id=Zinc-65
| rowspan="2"|65Zn
| rowspan="2" style="text-align:right" | 30
| rowspan="2" style="text-align:right" | 35
| rowspan="2"|64.92924053(69)
| rowspan="2"|243.94(4) d
| EC (98.579(7)%)
| rowspan="2"|65Cu
| rowspan="2"|5/2−
| rowspan="2"|
| rowspan="2"|
|-
| β+ (1.421(7)%)[3]
|-id=Zinc-65m
| style="text-indent:1em" | 65mZn
| colspan="3" style="text-indent:2em" | 53.928(10) keV
| 1.6(6) μs
| IT
| 65Zn
| 1/2−
|
|
|-id=Zinc-66
| 66Zn
| style="text-align:right" | 30
| style="text-align:right" | 36
| 65.92603364(80)
| colspan=3 align=center|Stable
| 0+
| 0.2773(98)
|
|-id=Zinc-67
| 67Zn
| style="text-align:right" | 30
| style="text-align:right" | 37
| 66.92712742(81)
| colspan=3 align=center|Stable
| 5/2−
| 0.0404(16)
|
|-id=Zinc-67m1
| style="text-indent:1em" | 67m1Zn
| colspan="3" style="text-indent:2em" | 93.312(5) keV
| 9.15(7) μs
| IT
| 67Zn
| 1/2−
|
|
|-id=Zinc-67m2
| style="text-indent:1em" | 67m2Zn
| colspan="3" style="text-indent:2em" | 604.48(5) keV
| 333(14) ns
| IT
| 67Zn
| 9/2+
|
|
|-id=Zinc-68
| 68Zn
| style="text-align:right" | 30
| style="text-align:right" | 38
| 67.92484423(84)
| colspan=3 align=center|Stable
| 0+
| 0.1845(63)
|
|-id=Zinc-69
| 69Zn
| style="text-align:right" | 30
| style="text-align:right" | 39
| 68.92655036(85)
| 56.4(9) min
| β−
| 69Ga
| 1/2−
|
|
|-id=Zinc-69m
| rowspan=2 style="text-indent:1em" | 69mZn
| rowspan=2 colspan="3" style="text-indent:2em" | 438.636(18) keV
| rowspan=2|13.747(11) h
| IT (99.97%)
| 69Zn
| rowspan=2|9/2+
| rowspan=2|
| rowspan=2|
|-
| β− (0.033%)
| 69Ga
|-id=Zinc-70
| 70Zn
| style="text-align:right" | 30
| style="text-align:right" | 40
| 69.9253192(21)
| colspan=3 align=center|Observationally Stable[n 2]
| 0+
| 0.0061(10)
|
|-id=Zinc-71
| 71Zn
| style="text-align:right" | 30
| style="text-align:right" | 41
| 70.9277196(28)
| 2.40(5) min
| β−
| 71Ga
| 1/2−
|
|
|-id=Zinc-71m
| rowspan=2 style="text-indent:1em" | 71mZn
| rowspan=2 colspan="3" style="text-indent:2em" | 157.7(13) keV
| rowspan=2|4.148(12) h
| β−
| 71Ga
| rowspan=2|9/2+
| rowspan=2|
| rowspan=2|
|-
| IT?
| 71Zn
|-id=Zinc-72
| 72Zn
| style="text-align:right" | 30
| style="text-align:right" | 42
| 71.9268428(23)
| 46.5(1) h
| β−
| 72Ga
| 0+
|
|
|-id=Zinc-73
| 73Zn
| style="text-align:right" | 30
| style="text-align:right" | 43
| 72.9295826(20)
| 24.5(2) s
| β−
| 73Ga
| 1/2−
|
|
|-id=Zinc-73m
| style="text-indent:1em" | 73mZn
| colspan="3" style="text-indent:2em" | 195.5(2) keV
| 13.0(2) ms
| IT
| 73Zn
| 5/2+
|
|
|-id=Zinc-74
| 74Zn
| style="text-align:right" | 30
| style="text-align:right" | 44
| 73.9294073(27)
| 95.6(12) s
| β−
| 74Ga
| 0+
|
|
|-id=Zinc-75
| 75Zn
| style="text-align:right" | 30
| style="text-align:right" | 45
| 74.9328402(21)
| 10.2(2) s
| β−
| 75Ga
| 7/2+
|
|
|-id=Zinc-75m
| rowspan=2 style="text-indent:1em" | 75mZn
| rowspan=2 colspan="3" style="text-indent:2em" | 126.94(9) keV
| rowspan=2|5# s
| β−?
| 75Ga
| rowspan=2|1/2−
| rowspan=2|
| rowspan=2|
|-
| IT?
| 75Zn
|-id=Zinc-76
| 76Zn
| style="text-align:right" | 30
| style="text-align:right" | 46
| 75.9331150(16)
| 5.7(3) s
| β−
| 76Ga
| 0+
|
|
|-id=Zinc-77
| 77Zn
| style="text-align:right" | 30
| style="text-align:right" | 47
| 76.9368872(21)
| 2.08(5) s
| β−
| 77Ga
| 7/2+
|
|
|-id=Zinc-77m
| rowspan=2 style="text-indent:1em" | 77mZn
| rowspan=2 colspan="3" style="text-indent:2em" | 772.440(15) keV
| rowspan=2|1.05(10) s
| β− (66%)
| 77Ga
| rowspan=2|1/2−
| rowspan=2|
| rowspan=2|
|-
| IT (34%)
| 77Zn
|-id=Zinc-78
| rowspan=2|78Zn
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 48
| rowspan=2|77.9382892(21)
| rowspan=2|1.47(15) s
| β−
| 78Ga
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β−, n?
| 77Ga
|-id=Zinc-78m
| style="text-indent:1em" | 78mZn
| colspan="3" style="text-indent:2em" | 2673.7(6) keV
| 320(6) ns
| IT
| 78Zn
| (8+)
|
|
|-id=Zinc-79
| rowspan=2|79Zn
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 49
| rowspan=2|78.9426381(24)
| rowspan=2|746(42) ms
| β− (98.3%)
| 79Ga
| rowspan=2|9/2+
| rowspan=2|
| rowspan=2|
|-
| β−, n (1.7%)
| 78Ga
|-id=Zinc-79m
| rowspan=2 style="text-indent:1em" | 79mZn
| rowspan=2 colspan="3" style="text-indent:2em" | 942(10) keV[4]
| rowspan=2|>200 ms
| β−?
| 79Ga
| rowspan=2|1/2+
| rowspan=2|
| rowspan=2|
|-
| IT?
| 79Zn
|-id=Zinc-80
| rowspan=2|80Zn
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 50
| rowspan=2|79.9445529(28)
| rowspan=2|562.2(30) ms
| β− (98.64%)
| 80Ga
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β−, n (1.36%)
| 79Ga
|-id=Zinc-81
| rowspan=3|81Zn
| rowspan=3 style="text-align:right" | 30
| rowspan=3 style="text-align:right" | 51
| rowspan=3|80.9504026(54)
| rowspan=3|299.4(21) ms
| β− (77%)
| 81Ga
| rowspan=3|(1/2+, 5/2+)
| rowspan=3|
| rowspan=3|
|-
| β−, n (23%)
| 80Ga
|-
| β−, 2n?
| 79Ga
|-id=Zinc-82
| rowspan=3|82Zn
| rowspan=3 style="text-align:right" | 30
| rowspan=3 style="text-align:right" | 52
| rowspan=3|81.9545741(33)
| rowspan=3|177.9(25) ms
| β−, n (69%)
| 81Ga
| rowspan=3|0+
| rowspan=3|
| rowspan=3|
|-
| β− (31%)
| 82Ga
|-
| β−, 2n?
| 80Ga
|-id=Zinc-83
| rowspan=3|83Zn
| rowspan=3 style="text-align:right" | 30
| rowspan=3 style="text-align:right" | 53
| rowspan=3|82.96104(32)#
| rowspan=3|100(3) ms
| β−, n (71%)
| 82Ga
| rowspan=3|3/2+#
| rowspan=3|
| rowspan=3|
|-
| β− (29%)
| 83Ga
|-
| β−, 2n?
| 81Ga
|-id=Zinc-84
| rowspan=3|84Zn
| rowspan=3 style="text-align:right" | 30
| rowspan=3 style="text-align:right" | 54
| rowspan=3|83.96583(43)#
| rowspan=3|54(8) ms
| β−, n (73%)
| 83Ga
| rowspan=3|0+
| rowspan=3|
| rowspan=3|
|-
| β− (27%)
| 84Ga
|-
| β−, 2n?
| 82Ga
|-id=Zinc-85
| rowspan=3|85Zn
| rowspan=3 style="text-align:right" | 30
| rowspan=3 style="text-align:right" | 55
| rowspan=3|84.97305(54)#
| rowspan=3|40# ms [>400 ns]
| β−?
| 85Ga
| rowspan=3|5/2+#
| rowspan=3|
| rowspan=3|
|-
| β−, n?
| 84Ga
|-
| β−, 2n?
| 83Ga
|-id=Zinc-86
| rowspan=2|86Zn[5]
| rowspan=2 style="text-align:right" | 30
| rowspan=2 style="text-align:right" | 56
| rowspan=2|85.97846(54)#
| rowspan=2|
| β−?
| 86Ga
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β−, n?
| 85Ga
|-id=Zinc-87
| 87Zn[5]
| style="text-align:right" | 30
| style="text-align:right" | 57
|
|
|
|
|
|
|
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See also
Daughter products other than zinc
References
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- Isotope masses from:
- Isotopic compositions and standard atomic masses from:
- Half-life, spin, and isomer data selected from the following sources.
External links
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