Isotopes of tin
Template:Short description Template:Infobox tin isotopes Tin (50Sn) is the element with the greatest number of stable isotopes (ten; three of them are potentially radioactive but have not been observed to decay). This is probably related to the fact that 50 is a "magic number" of protons. In addition, 32 unstable tin isotopes are known, including tin-100 (100Sn) (discovered in 1994)[1] and tin-132 (132Sn), which are both "doubly magic". The longest-lived tin radioisotope is tin-126 (126Sn), with a half-life of 230,000 years. The other 28 radioisotopes have half-lives of less than a year.
List of isotopes
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Template:Isotopes table
|-id=Tin-98
| 98Sn[2]
| style="text-align:right" | 50
| style="text-align:right" | 48
|
|
|
|
| 0+
|
|
|-id=Tin-99
| rowspan=2|99Sn[n 1]
| rowspan=2 style="text-align:right" | 50
| rowspan=2 style="text-align:right" | 49
| rowspan=2|98.94850(63)#
| rowspan=2|24(4) ms
| β+ (95%)
| 99In
| rowspan=2|9/2+#
| rowspan=2|
| rowspan=2|
|-
| β+, p (5%)
| 98Cd
|-id=Tin-100
| rowspan=2|100Sn[n 2]
| rowspan=2 style="text-align:right" | 50
| rowspan=2 style="text-align:right" | 50
| rowspan=2|99.93865(26)
| rowspan=2|1.18(8) s
| β+ (>83%)
| 100In
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β+, p (<17%)
| 99Cd
|-id=Tin-101
| rowspan=2|101Sn
| rowspan=2 style="text-align:right" | 50
| rowspan=2 style="text-align:right" | 51
| rowspan=2|100.93526(32)
| rowspan=2|2.22(5) s
| β+
| 101In
| rowspan=2|(7/2+)
| rowspan=2|
| rowspan=2|
|-
| β+, p?
| 100Cd
|-id=Tin-102
| 102Sn
| style="text-align:right" | 50
| style="text-align:right" | 52
| 101.93029(11)
| 3.8(2) s
| β+
| 102In
| 0+
|
|
|-id=Tin-102m
| style="text-indent:1em" | 102mSn
| colspan="3" style="text-indent:2em" | 2017(2) keV
| 367(8) ns
| IT
| 102Sn
| (6+)
|
|
|-id=Tin-103
| rowspan=2|103Sn
| rowspan=2 style="text-align:right" | 50
| rowspan=2 style="text-align:right" | 53
| rowspan=2|102.92797(11)#
| rowspan=2|7.0(2) s
| β+ (98.8%)
| 103In
| rowspan=2|5/2+#
| rowspan=2|
| rowspan=2|
|-
| β+, p (1.2%)
| 102Cd
|-id=Tin-104
| 104Sn
| style="text-align:right" | 50
| style="text-align:right" | 54
| 103.923105(6)
| 20.8(5) s
| β+
| 104In
| 0+
|
|
|-id=Tin-105
| rowspan=2|105Sn
| rowspan=2 style="text-align:right" | 50
| rowspan=2 style="text-align:right" | 55
| rowspan=2|104.921268(4)
| rowspan=2|32.7(5) s
| β+
| 105In
| rowspan=2|(5/2+)
| rowspan=2|
| rowspan=2|
|-
| β+, p (0.011%)
| 104Cd
|-id=Tin-106
| 106Sn
| style="text-align:right" | 50
| style="text-align:right" | 56
| 105.916957(5)
| 1.92(8) min
| β+
| 106In
| 0+
|
|
|-id=Tin-107
| 107Sn
| style="text-align:right" | 50
| style="text-align:right" | 57
| 106.915714(6)
| 2.90(5) min
| β+
| 107In
| (5/2+)
|
|
|-id=Tin-108
| 108Sn
| style="text-align:right" | 50
| style="text-align:right" | 58
| 107.911894(6)
| 10.30(8) min
| β+
| 108In
| 0+
|
|
|-id=Tin-109
| 109Sn
| style="text-align:right" | 50
| style="text-align:right" | 59
| 108.911293(9)
| 18.1(2) min
| β+
| 109In
| 5/2+
|
|
|-id=Tin-110
| 110Sn
| style="text-align:right" | 50
| style="text-align:right" | 60
| 109.907845(15)
| 4.154(4) h
| EC
| 110In
| 0+
|
|
|-id=Tin-111
| 111Sn
| style="text-align:right" | 50
| style="text-align:right" | 61
| 110.907741(6)
| 35.3(6) min
| β+
| 111In
| 7/2+
|
|
|-id=Tin-111m
| style="text-indent:1em" | 111mSn
| colspan="3" style="text-indent:2em" | 254.71(4) keV
| 12.5(10) μs
| IT
| 111Sn
| 1/2+
|
|
|-id=Tin-112
| 112Sn
| style="text-align:right" | 50
| style="text-align:right" | 62
|111.9048249(3)
| colspan=3 align=center|Observationally Stable[n 3]
| 0+
| 0.0097(1)
|
|-id=Tin-113
| 113Sn
| style="text-align:right" | 50
| style="text-align:right" | 63
|112.9051759(17)
| 115.08(4) d
| β+
| 113In
| 1/2+
|
|
|-id=Tin-113m
| rowspan=2 style="text-indent:1em" | 113mSn
| rowspan=2 colspan="3" style="text-indent:2em" | 77.389(19) keV
| rowspan=2|21.4(4) min
| IT (91.1%)
| 113Sn
| rowspan=2|7/2+
| rowspan=2|
| rowspan=2|
|-
| β+ (8.9%)
| 113In
|-id=Tin-114
| 114Sn
| style="text-align:right" | 50
| style="text-align:right" | 64
|113.90278013(3)
| colspan=3 align=center|Stable
| 0+
| 0.0066(1)
|
|-id=Tin-114m
| style="text-indent:1em" | 114mSn
| colspan="3" style="text-indent:2em" | 3087.37(7) keV
| 733(14) ns
| IT
| 114Sn
| 7−
|
|
|-id=Tin-115
| 115Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 65
| 114.903344695(16)
| colspan=3 align=center|Stable
| 1/2+
| 0.0034(1)
|
|-id=Tin-115m1
| style="text-indent:1em" | 115m1Sn
| colspan="3" style="text-indent:2em" | 612.81(4) keV
| 3.26(8) μs
| IT
| 115Sn
| 7/2+
|
|
|-id=Tin-115m2
| style="text-indent:1em" | 115m2Sn
| colspan="3" style="text-indent:2em" | 713.64(12) keV
| 159(1) μs
| IT
| 115Sn
| 11/2−
|
|
|-id=Tin-116
| 116Sn
| style="text-align:right" | 50
| style="text-align:right" | 66
| 115.90174283(10)
| colspan=3 align=center|Stable
| 0+
| 0.1454(9)
|
|-id=Tin-116m1
| style="text-indent:1em" | 116m1Sn
| colspan="3" style="text-indent:2em" | 2365.975(21) keV
| 348(19) ns
| IT
| 116Sn
| 5−
|
|
|-id=Tin-116m2
| style="text-indent:1em" | 116m2Sn
| colspan="3" style="text-indent:2em" | 3547.16(17) keV
| 833(30) ns
| IT
| 116Sn
| 10+
|
|
|-id=Tin-117
| 117Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 67
| 116.90295404(52)
| colspan=3 align=center|Stable
| 1/2+
| 0.0768(7)
|
|-id=Tin-117m1
| style="text-indent:1em" | 117m1Sn[n 4]
| colspan="3" style="text-indent:2em" | 314.58(4) keV
| 13.939(24) d
| IT
| 117Sn
| 11/2−
|
|
|-id=Tin-117m2
| style="text-indent:1em" | 117m2Sn
| colspan="3" style="text-indent:2em" | 2406.4(4) keV
| 1.75(7) μs
| IT
| 117Sn
| (19/2+)
|
|
|-id=Tin-118
| 118Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 68
| 117.90160663(54)
| colspan=3 align=center|Stable
| 0+
| 0.2422(9)
|
|-id=Tin-118m1
| style="text-indent:1em" | 118m1Sn
| colspan="3" style="text-indent:2em" | 2574.91(4) keV
| 230(10) ns
| IT
| 118Sn
| 7−
|
|
|-id=Tin-118m2
| style="text-indent:1em" | 118m2Sn
| colspan="3" style="text-indent:2em" | 3108.06(22) keV
| 2.52(6) μs
| IT
| 118Sn
| (10+)
|
|
|-id=Tin-119
| 119Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 69
| 118.90331127(78)
| colspan=3 align=center|Stable
| 1/2+
| 0.0859(4)
|
|-id=Tin-119m1
| style="text-indent:1em" | 119m1Sn[n 4]
| colspan="3" style="text-indent:2em" | 89.531(13) keV
| 293.1(7) d
| IT
| 119Sn
| 11/2−
|
|
|-id=Tin-119m2
| style="text-indent:1em" | 119m2Sn
| colspan="3" style="text-indent:2em" | 2127.0(10) keV
| 9.6(12) μs
| IT
| 119Sn
| (19/2+)
|
|
|-id=Tin-119m3
| style="text-indent:1em" | 119m3Sn
| colspan="3" style="text-indent:2em" | 2369.0(3) keV
| 96(9) ns
| IT
| 119Sn
| 23/2+
|
|
|-id=Tin-120
| 120Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 70
| 119.90220256(99)
| colspan=3 align=center|Stable
| 0+
| 0.3258(9)
|
|-id=Tin-120m1
| style="text-indent:1em" | 120m1Sn
| colspan="3" style="text-indent:2em" | 2481.63(6) keV
| 11.8(5) μs
| IT
| 120Sn
| 7−
|
|
|-id=Tin-120m2
| style="text-indent:1em" | 120m2Sn
| colspan="3" style="text-indent:2em" | 2902.22(22) keV
| 6.26(11) μs
| IT
| 120Sn
| 10+
|
|
|-id=Tin-121
| 121Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 71
| 120.9042435(11)
| 27.03(4) h
| β−
| 121Sb
| 3/2+
|
|
|-id=Tin-121m1
| rowspan=2 style="text-indent:1em" | 121m1Sn[n 4]
| rowspan=2 colspan="3" style="text-indent:2em" | 6.31(6) keV
| rowspan=2|43.9(5) y
| IT (77.6%)
| 121Sn
| rowspan=2| 11/2−
| rowspan=2|
| rowspan=2|
|-
| β− (22.4%)
| 121Sb
|-id=Tin-121m2
| style="text-indent:1em" | 121m2Sn
| colspan="3" style="text-indent:2em" | 1998.68(13) keV
| 5.3(5) μs
| IT
| 121Sn
| 19/2+
|
|
|-id=Tin-121m3
| style="text-indent:1em" | 121m3Sn
| colspan="3" style="text-indent:2em" | 2222.0(2) keV
| 520(50) ns
| IT
| 121Sn
| 23/2+
|
|
|-id=Tin-121m4
| style="text-indent:1em" | 121m4Sn
| colspan="3" style="text-indent:2em" | 2833.9(2) keV
| 167(25) ns
| IT
| 121Sn
| 27/2−
|
|
|-id=Tin-122
| 122Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 72
| 121.9034455(26)
| colspan=3 align=center|Observationally Stable[n 5]
| 0+
| 0.0463(3)
|
|-id=Tin-122m1
| style="text-indent:1em" | 122m1Sn
| colspan="3" style="text-indent:2em" | 2409.03(4) keV
| 7.5(9) μs
| IT
| 122Sn
| 7−
|
|
|-id=Tin-122m2
| style="text-indent:1em" | 122m2Sn
| colspan="3" style="text-indent:2em" | 2765.5(3) keV
| 62(3) μs
| IT
| 122Sn
| 10+
|
|
|-id=Tin-122m3
| style="text-indent:1em" | 122m3Sn
| colspan="3" style="text-indent:2em" | 4721.2(3) keV
| 139(9) ns
| IT
| 122Sn
| 15−
|
|
|-id=Tin-123
| 123Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 73
| 122.9057271(27)
| 129.2(4) d
| β−
| 123Sb
| 11/2−
|
|
|-id=Tin-123m1
| style="text-indent:1em" | 123m1Sn
| colspan="3" style="text-indent:2em" | 24.6(4) keV
| 40.06(1) min
| β−
| 123Sb
| 3/2+
|
|
|-id=Tin-123m2
| style="text-indent:1em" | 123m2Sn
| colspan="3" style="text-indent:2em" | 1944.90(12) keV
| 7.4(26) μs
| IT
| 123Sn
| 19/2+
|
|
|-id=Tin-123m3
| style="text-indent:1em" | 123m3Sn
| colspan="3" style="text-indent:2em" | 2152.66(19) keV
| 6 μs
| IT
| 123Sn
| 23/2+
|
|
|-id=Tin-123m4
| style="text-indent:1em" | 123m4Sn
| colspan="3" style="text-indent:2em" | 2712.47(21) keV
| 34 μs
| IT
| 123Sn
| 27/2−
|
|
|-id=Tin-124
| 124Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 74
| 123.9052796(14)
| colspan=3 align=center|Observationally Stable[n 6]
| 0+
| 0.0579(5)
|
|-id=Tin-124m1
| style="text-indent:1em" | 124m1Sn
| colspan="3" style="text-indent:2em" | 2204.620(23) keV
| 270(60) ns
| IT
| 124Sn
| 5-
|
|
|-id=Tin-124m2
| style="text-indent:1em" | 124m2Sn
| colspan="3" style="text-indent:2em" | 2324.96(4) keV
| 3.1(5) μs
| IT
| 124Sn
| 7−
|
|
|-id=Tin-124m3
| style="text-indent:1em" | 124m3Sn
| colspan="3" style="text-indent:2em" | 2656.6(3) keV
| 51(3) μs
| IT
| 124Sn
| 10+
|
|
|-id=Tin-124m4
| style="text-indent:1em" | 124m4Sn
| colspan="3" style="text-indent:2em" | 4552.4(3) keV
| 260(25) ns
| IT
| 124Sn
| 15−
|
|
|-id=Tin-125
| 125Sn[n 4]
| style="text-align:right" | 50
| style="text-align:right" | 75
| 124.9077894(14)
| 9.634(15) d
| β−
| 125Sb
| 11/2−
|
|
|-id=Tin-125m1
| style="text-indent:1em" | 125m1Sn
| colspan="3" style="text-indent:2em" | 27.50(14) keV
| 9.77(25) min
| β−
| 125Sb
| 3/2+
|
|
|-id=Tin-125m2
| style="text-indent:1em" | 125m2Sn
| colspan="3" style="text-indent:2em" | 1892.8(3) keV
| 6.2(2) μs
| IT
| 125Sn
| 19/2+
|
|
|-id=Tin-125m3
| style="text-indent:1em" | 125m3Sn
| colspan="3" style="text-indent:2em" | 2059.5(4) keV
| 650(60) ns
| IT
| 125Sn
| 23/2+
|
|
|-id=Tin-125m4
| style="text-indent:1em" | 125m4Sn
| colspan="3" style="text-indent:2em" | 2623.5(5) keV
| 230(17) ns
| IT
| 125Sn
| 27/2−
|
|
|-
| 126Sn[n 7]
| style="text-align:right" | 50
| style="text-align:right" | 76
| 125.907658(11)
| 2.30(14)×105 y
| β−
| 126Sb
| 0+
| < 10−14[3]
|
|-id=Tin-126m1
| style="text-indent:1em" | 126m1Sn
| colspan="3" style="text-indent:2em" | 2218.99(8) keV
| 6.1(7) μs
| IT
| 126Sn
| 7−
|
|
|-id=Tin-126m2
| style="text-indent:1em" | 126m2Sn
| colspan="3" style="text-indent:2em" | 2564.5(5) keV
| 7.6(3) μs
| IT
| 126Sn
| 10+
|
|
|-id=Tin-126m3
| style="text-indent:1em" | 126m3Sn
| colspan="3" style="text-indent:2em" | 4347.4(4) keV
| 114(2) ns
| IT
| 126Sn
| 15−
|
|
|-id=Tin-127
| 127Sn
| style="text-align:right" | 50
| style="text-align:right" | 77
| 126.9103917(99)
| 2.10(4) h
| β−
| 127Sb
| 11/2−
|
|
|-id=Tin-127m1
| style="text-indent:1em" | 127m1Sn
| colspan="3" style="text-indent:2em" | 5.07(6) keV
| 4.13(3) min
| β−
| 127Sb
| 3/2+
|
|
|-id=Tin-127m2
| style="text-indent:1em" | 127m2Sn
| colspan="3" style="text-indent:2em" | 1826.67(16) keV
| 4.52(15) μs
| IT
| 127Sn
| 19/2+
|
|
|-id=Tin-127m3
| style="text-indent:1em" | 127m3Sn
| colspan="3" style="text-indent:2em" | 1930.97(17) keV
| 1.26(15) μs
| IT
| 127Sn
| (23/2+)
|
|
|-id=Tin-127m4
| style="text-indent:1em" | 127m4Sn
| colspan="3" style="text-indent:2em" | 2552.4(10) keV
| 250 (30) ns
| IT
| 127Sn
| (27/2−)
|
|
|-id=Tin-128
| 128Sn
| style="text-align:right" | 50
| style="text-align:right" | 78
|127.910508(19)
| 59.07(14) min
| β−
| 128Sb
| 0+
|
|
|-id=Tin-128m1
| style="text-indent:1em" | 128m1Sn
| colspan="3" style="text-indent:2em" | 2091.50(11) keV
| 6.5(5) s
| IT
| 128Sn
| 7−
|
|
|-id=Tin-128m2
| style="text-indent:1em" | 128m2Sn
| colspan="3" style="text-indent:2em" | 2491.91(17) keV
| 2.91(14) μs
| IT
| 128Sn
| 10+
|
|
|-id=Tin-128m3
| style="text-indent:1em" | 128m3Sn
| colspan="3" style="text-indent:2em" | 4099.5(4) keV
| 220(30) ns
| IT
| 128Sn
| (15−)
|
|
|-id=Tin-129
| 129Sn
| style="text-align:right" | 50
| style="text-align:right" | 79
| 128.913482(19)
| 2.23(4) min
| β−
| 129Sb
| 3/2+
|
|
|-id=Tin-129m1
| style="text-indent:1em" | 129m1Sn
| colspan="3" style="text-indent:2em" | 35.15(5) keV
| 6.9(1) min
| β−
| 129Sb
| 11/2−
|
|
|-id=Tin-129m2
| style="text-indent:1em" | 129m2Sn
| colspan="3" style="text-indent:2em" | 1761.6(10) keV
| 3.49(11) μs
| IT
| 129Sn
| (19/2+)
|
|
|-id=Tin-129m3
| style="text-indent:1em" | 129m3Sn
| colspan="3" style="text-indent:2em" | 1802.6(10) keV
| 2.22(13) μs
| IT
| 129Sn
| 23/2+
|
|
|-id=Tin-129m4
| style="text-indent:1em" | 129m4Sn
| colspan="3" style="text-indent:2em" | 2552.9(11) keV
| 221(18) ns
| IT
| 129Sn
| (27/2−)
|
|
|-id=Tin-130
| 130Sn
| style="text-align:right" | 50
| style="text-align:right" | 80
|129.9139745(20)
| 3.72(7) min
| β−
| 130Sb
| 0+
|
|
|-id=Tin-130m1
| style="text-indent:1em" | 130m1Sn
| colspan="3" style="text-indent:2em" | 1946.88(10) keV
| 1.7(1) min
| β−
| 130Sb
| 7−
|
|
|-id=Tin-130m2
| style="text-indent:1em" | 130m2Sn
| colspan="3" style="text-indent:2em" | 2434.79(12) keV
| 1.501(17) μs
| IT
| 130Sn
| (10+)
|
|
|-id=Tin-131
| 131Sn
| style="text-align:right" | 50
| style="text-align:right" | 81
| 130.917053(4)
| 56.0(5) s
| β−
| 131Sb
| 3/2+
|
|
|-id=Tin-131m1
| rowspan=2 style="text-indent:1em" | 131m1Sn
| rowspan=2 colspan="3" style="text-indent:2em" | 65.1(3) keV
| rowspan=2|58.4(5) s
| β−
| 131Sb
| rowspan=2|11/2−
| rowspan=2|
| rowspan=2|
|-
| IT?
| 131Sn
|-id=Tin-131m2
| style="text-indent:1em" | 131m2Sn
| colspan="3" style="text-indent:2em" | 4670.0(4) keV
| 316(5) ns
| IT
| 131Sn
| (23/2−)
|
|
|-id=Tin-132
| 132Sn
| style="text-align:right" | 50
| style="text-align:right" | 82
| 131.9178239(21)
| 39.7(8) s
| β−
| 132Sb
| 0+
|
|
|-id=Tin-132m
| style="text-indent:1em" | 132mSn
| colspan="3" style="text-indent:2em" | 4848.52(20) keV
| 2.080(16) μs
| IT
| 132Sn
| 8+
|
|
|-id=Tin-133
| rowspan=2|133Sn
| rowspan=2 style="text-align:right" | 50
| rowspan=2 style="text-align:right" | 83
| rowspan=2|132.9239138(20)
| rowspan=2|1.37(7) s
| β− (99.97%)
| 133Sb
| rowspan=2|7/2−
| rowspan=2|
| rowspan=2|
|-
| β−n (.0294%)
| 132Sb
|-id=Tin-134
| rowspan=2|134Sn
| rowspan=2 style="text-align:right" | 50
| rowspan=2 style="text-align:right" | 84
| rowspan=2| 133.928680(3)
| rowspan=2| 0.93(8) s
| β− (83%)
| 134Sb
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β−n (17%)
| 133Sb
|-id=Tin-134m
| style="text-indent:1em" | 134mSn
| colspan="3" style="text-indent:2em" | 1247.4(5) keV
| 87(8) ns
| IT
| 134Sn
| 6+
|
|
|-id=Tin-135
| rowspan=3|135Sn
| rowspan=3 style="text-align:right" | 50
| rowspan=3 style="text-align:right" | 85
| rowspan=3| 134.934909(3)
| rowspan=3|515(5) ms
| β− (79%)
| 135Sb
| rowspan=3|7/2−#
| rowspan=3|
| rowspan=3|
|-
| β−n (21%)
| 134Sb
|-
| β−2n?
| 133Sb
|-id=Tin-136
| rowspan=3|136Sn
| rowspan=3 style="text-align:right" | 50
| rowspan=3 style="text-align:right" | 86
| rowspan=3| 135.93970(22)#
| rowspan=3|355(18) ms
| β− (72%)
| 136Sb
| rowspan=3|0+
| rowspan=3|
| rowspan=3|
|-
| β−n (28%)
| 135Sb
|-
| β−2n?
| 134Sb
|-id=Tin-137
| rowspan=3|137Sn
| rowspan=3 style="text-align:right" | 50
| rowspan=3 style="text-align:right" | 87
| rowspan=3|136.94616(32)#
| rowspan=3|249(15) ms
| β− (52%)
| 137Sb
| rowspan=3|5/2−#
| rowspan=3|
| rowspan=3|
|-
| β−n (48%)
| 136Sb
|-
| β−2n?
| 135Sb
|-id=Tin-138
| rowspan=3|138Sn
| rowspan=3 style="text-align:right" | 50
| rowspan=3 style="text-align:right" | 88
| rowspan=3|137.95114(43)#
| rowspan=3|148(9) ms
| β− (64%)
| 138Sb
| rowspan=3|0+
| rowspan=3|
| rowspan=3|
|-
| β−n (36%)
| 137Sb
|-
| β−2n?
| 136Sb
|-id=Tin-138m
| style="text-indent:1em" | 138mSn
| colspan="3" style="text-indent:2em" | 1344(2) keV
| 210(45) ns
| IT
| 138Sn
| (6+)
|
|
|-id=Tin-139
| rowspan=3|139Sn
| rowspan=3 style="text-align:right" | 50
| rowspan=3 style="text-align:right" | 89
| rowspan=3|138.95780(43)#
| rowspan=3|120(38) ms
| β−
| 139Sb
| rowspan=3|5/2−#
| rowspan=3|
| rowspan=3|
|-
| β−n?
| 138Sb
|-
| β−2n?
| 137Sb
|-id=Tin-140
|rowspan=3| 140Sn
|rowspan=3 style="text-align:right" | 50
|rowspan=3 style="text-align:right" | 90
|rowspan=3| 139.96297(32)#
|rowspan=3| 50# ms
[>550 ns]
|β−?
|140Sb
|rowspan=3|0+
|rowspan=3|
|rowspan=3|
|-
|β−n?
|139Sb
|-
|β−2n?
|138Sb
Template:Isotopes table/footer
Tin-117m
Tin-117m is a radioisotope of tin. One of its uses is in a particulate suspension to treat canine synovitis (radiosynoviorthesis).[4]
Tin-121m
Tin-121m (121mSn) is a radioisotope and nuclear isomer of tin with a half-life of 43.9 years.
In a normal thermal reactor, it has a very low fission product yield; thus, this isotope is not a significant contributor to nuclear waste. Fast fission or fission of some heavier actinides will produce tin-121 at higher yields. For example, its yield from uranium-235 is 0.0007% per thermal fission and 0.002% per fast fission.[5]
Tin-126
Template:Chain yield Tin-126 is a radioisotope of tin and one of the only seven long-lived fission products of uranium and plutonium. While tin-126's half-life of 230,000 years translates to a low specific activity of gamma radiation, its short-lived decay products, two isomers of antimony-126, emit a cascade of hard gamma radiation - at least 3 photons over 400 keV per decay - before reaching stable tellurium-126, making external exposure to tin-126 a potential concern.
Tin-126 is in the middle of the mass range for fission products. Thermal reactors, which make up almost all current nuclear power plants, produce it at only low yield, since slow neutrons almost always fission 235U or 239Pu into unequal halves. Fast fission in a fast reactor or nuclear weapon, or fission of some heavy minor actinides such as californium, will produce it at higher yields.
See also
Daughter products other than tin
References
- Isotope masses from:
- Isotopic compositions and standard atomic masses from:
- Half-life, spin, and isomer data selected from:
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- ↑ M. B. Chadwick et al, "Evaluated Nuclear Data File (ENDF) : ENDF/B-VII.1: Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields, and Decay Data", Nucl. Data Sheets 112(2011)2887. (accessed at https://www-nds.iaea.org/exfor/endf.htm)
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