Isotopes of zinc

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 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.

List of isotopes

 * 54Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 24
 * 53.99388(23)#
 * 1.8(5) ms
 * 2p
 * 52Ni
 * 0+
 * 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
 * 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
 * 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
 * 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
 * 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
 * 60Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 30
 * 59.94184132(59)
 * 2.38(5) min
 * β+
 * 60Cu
 * 0+
 * 61Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 31
 * 60.939507(17)
 * 89.1(2) s
 * β+
 * 61Cu
 * 3/2−
 * 62Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 32
 * 61.93433336(66)
 * 9.193(15) h
 * β+
 * 62Cu
 * 0+
 * 63Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 33
 * 62.9332111(17)
 * 38.47(5) min
 * β+
 * 63Cu
 * 3/2−
 * 64Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 34
 * 63.92914178(69)
 * colspan=3 align=center|Observationally Stable
 * 0+
 * 0.4917(75)
 * 65Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 35
 * 64.92924053(69)
 * 243.94(4) d
 * β+
 * 65Cu
 * 5/2−
 * style="text-indent:1em" | 65mZn
 * colspan="3" style="text-indent:2em" | 53.928(10) keV
 * 1.6(6) μs
 * IT
 * 65Zn
 * 1/2−
 * 66Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 36
 * 65.92603364(80)
 * colspan=3 align=center|Stable
 * 0+
 * 0.2773(98)
 * 67Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 37
 * 66.92712742(81)
 * colspan=3 align=center|Stable
 * 5/2−
 * 0.0404(16)
 * style="text-indent:1em" | 67m1Zn
 * colspan="3" style="text-indent:2em" | 93.312(5) keV
 * 9.15(7) μs
 * IT
 * 67Zn
 * 1/2−
 * style="text-indent:1em" | 67m2Zn
 * colspan="3" style="text-indent:2em" | 604.48(5) keV
 * 333(14) ns
 * IT
 * 67Zn
 * 9/2+
 * 68Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 38
 * 67.92484423(84)
 * colspan=3 align=center|Stable
 * 0+
 * 0.1845(63)
 * 69Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 39
 * 68.92655036(85)
 * 56.4(9) min
 * β−
 * 69Ga
 * 1/2−
 * 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
 * 70Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 40
 * 69.9253192(21)
 * colspan=3 align=center|Observationally Stable
 * 0+
 * 0.0061(10)
 * 71Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 41
 * 70.9277196(28)
 * 2.40(5) min
 * β−
 * 71Ga
 * 1/2−
 * 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
 * 72Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 42
 * 71.9268428(23)
 * 46.5(1) h
 * β−
 * 72Ga
 * 0+
 * 73Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 43
 * 72.9295826(20)
 * 24.5(2) s
 * β−
 * 73Ga
 * 1/2−
 * style="text-indent:1em" | 73mZn
 * colspan="3" style="text-indent:2em" | 195.5(2) keV
 * 13.0(2) ms
 * IT
 * 73Zn
 * 5/2+
 * 74Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 44
 * 73.9294073(27)
 * 95.6(12) s
 * β−
 * 74Ga
 * 0+
 * 75Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 45
 * 74.9328402(21)
 * 10.2(2) s
 * β−
 * 75Ga
 * 7/2+
 * 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
 * 76Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 46
 * 75.9331150(16)
 * 5.7(3) s
 * β−
 * 76Ga
 * 0+
 * 77Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 47
 * 76.9368872(21)
 * 2.08(5) s
 * β−
 * 77Ga
 * 7/2+
 * 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
 * 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
 * style="text-indent:1em" | 78mZn
 * colspan="3" style="text-indent:2em" | 2673.7(6) keV
 * 320(6) ns
 * IT
 * 78Zn
 * (8+)
 * 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
 * rowspan=2 style="text-indent:1em" | 79mZn
 * rowspan=2 colspan="3" style="text-indent:2em" | 1100(150) keV
 * rowspan=2|>200 ms
 * β−?
 * 79Ga
 * rowspan=2|1/2+
 * rowspan=2|
 * rowspan=2|
 * IT?
 * 79Zn
 * 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
 * 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
 * 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
 * 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
 * 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
 * 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
 * rowspan=2|86Zn
 * 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
 * 87Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 57
 * β− (98.64%)
 * 80Ga
 * rowspan=2|0+
 * rowspan=2|
 * rowspan=2|
 * β−, n (1.36%)
 * 79Ga
 * 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
 * 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
 * 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
 * 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
 * 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
 * rowspan=2|86Zn
 * 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
 * 87Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 57
 * 83Ga
 * rowspan=2|86Zn
 * 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
 * 87Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 57
 * 87Zn
 * style="text-align:right" | 30
 * style="text-align:right" | 57