Isotopes of antimony

Template:Short description Template:Infobox antimony isotopes Antimony (₅₁Sb) occurs in two stable isotopes, ¹²¹Sb and ¹²³Sb. There are 37 artificial radioactive isotopes, the longest-lived of which are ¹²⁵Sb, with a half-life of 2.75856 years; ¹²⁴Sb, with half-life 60.2 days; and ¹²⁶Sb, with half-life 12.35 days. All other isotopes have half-lives less than 4 days, most less than an hour. There are also many isomers, the longest-lived of which is ^120m1Sb with half-life 5.76 days.

List of isotopes

Template:Isotopes table |-id=Antimony-104 | rowspan=4|¹⁰⁴Sb | rowspan=4 style="text-align:right" | 51 | rowspan=4 style="text-align:right" | 53 | rowspan=4|103.93634(11)# | rowspan=4|470(130) ms | β⁺? | ¹⁰⁴Sn | rowspan=4| | rowspan=4| | rowspan=4| |- | p (<7%) | ¹⁰³Sn |- | β⁺, p (<7%) | ¹⁰³In |- | α? | ¹⁰⁰In |-id=Antimony-105 | rowspan=3|¹⁰⁵Sb | rowspan=3 style="text-align:right" | 51 | rowspan=3 style="text-align:right" | 54 | rowspan=3|104.931277(23) | rowspan=3|1.12(16) s | β⁺ (>99.9%) | ¹⁰⁵Sn | rowspan=3|(5/2+) | rowspan=3| | rowspan=3| |- | p (<0.1%) | ¹⁰⁴Sn |- | β⁺, p? | ¹⁰⁴In |-id=Antimony-106 | ¹⁰⁶Sb | style="text-align:right" | 51 | style="text-align:right" | 55 | 105.9286380(80) | 0.6(2) s | β⁺ | ¹⁰⁶Sn | (2+) | | |-id=Antimony-106m | style="text-indent:1em" | ^106mSb | colspan="3" style="text-indent:2em" | 103.5(3) keV | 226(14) ns | IT | ¹⁰⁶Sb | (4+) | | |-id=Antimony-107 | ¹⁰⁷Sb | style="text-align:right" | 51 | style="text-align:right" | 56 | 106.9241506(45) | 4.0(2) s | β⁺ | ¹⁰⁷Sn | 5/2+# | | |-id=Antimony-108 | ¹⁰⁸Sb | style="text-align:right" | 51 | style="text-align:right" | 57 | 107.9222267(59) | 7.4(3) s | β⁺ | ¹⁰⁸Sn | (4+) | | |-id=Antimony-109 | ¹⁰⁹Sb | style="text-align:right" | 51 | style="text-align:right" | 58 | 108.9181412(57) | 17.2(5) s | β⁺ | ¹⁰⁹Sn | 5/2+# | | |-id=Antimony-110 | ¹¹⁰Sb | style="text-align:right" | 51 | style="text-align:right" | 59 | 109.9168543(64) | 23.6(3) s | β⁺ | ¹¹⁰Sn | (3+) | | |-id=Antimony-111 | ¹¹¹Sb | style="text-align:right" | 51 | style="text-align:right" | 60 | 110.9132182(95) | 75(1) s | β⁺ | ¹¹¹Sn | (5/2+) | | |-id=Antimony-112 | ¹¹²Sb | style="text-align:right" | 51 | style="text-align:right" | 61 | 111.912400(19) | 53.5(6) s | β⁺ | ¹¹²Sn | (3+) | | |-id=Antimony-112m | style="text-indent:1em" | ^112mSb | colspan="3" style="text-indent:2em" | 825.9(4) keV | 536(22) ns | IT | ¹¹²Sb | (8−) | | |-id=Antimony-113 | ¹¹³Sb | style="text-align:right" | 51 | style="text-align:right" | 62 | 112.909375(18) | 6.67(7) min | β⁺ | ¹¹³Sn | 5/2+ | | |-id=Antimony-114 | ¹¹⁴Sb | style="text-align:right" | 51 | style="text-align:right" | 63 | 113.909289(21) | 3.49(3) min | β⁺ | ¹¹⁴Sn | 3+ | | |-id=Antimony-114m | style="text-indent:1em" | ^114mSb | colspan="3" style="text-indent:2em" | 495.5(7) keV | 219(12) μs | IT | ¹¹⁴Sb | (8−) | | |-id=Antimony-115 | ¹¹⁵Sb | style="text-align:right" | 51 | style="text-align:right" | 64 | 114.906598(17) | 32.1(3) min | β⁺ | ¹¹⁵Sn | 5/2+ | | |-id=Antimony-115m | style="text-indent:1em" | ^115mSb | colspan="3" style="text-indent:2em" | 2796.26(9) keV | 159(3) ns | IT | ¹¹⁵Sb | (19/2)− | | |-id=Antimony-116 | ¹¹⁶Sb | style="text-align:right" | 51 | style="text-align:right" | 65 | 115.9067927(55) | 15.8(8) min | β⁺ | ¹¹⁶Sn | 3+ | | |-id=Antimony-116m1 | style="text-indent:1em" | ^116m1Sb | colspan="3" style="text-indent:2em" | 93.99(5) keV | 194(4) ns | IT | ¹¹⁶Sb | 1+ | | |-id=Antimony-116m2 | style="text-indent:1em" | ^116m2Sb | colspan="3" style="text-indent:2em" | 390(40) keV | 60.3(6) min | β⁺ | ¹¹⁶Sn | 8− | | |-id=Antimony-117 | ¹¹⁷Sb | style="text-align:right" | 51 | style="text-align:right" | 66 | 116.9048415(91) | 2.97(2) h | β⁺ | ¹¹⁷Sn | 5/2+ | | |-id=Antimony-117m1 | style="text-indent:1em" | ^117m1Sb | colspan="3" style="text-indent:2em" | 3130.76(19) keV | 355(17) μs | IT | ¹¹⁷Sb | (25/2)+ | | |-id=Antimony-117m2 | style="text-indent:1em" | ^117m2Sb | colspan="3" style="text-indent:2em" | 3230.7(2) keV | 290(5) ns | IT | ¹¹⁷Sb | (23/2−) | | |-id=Antimony-118 | ¹¹⁸Sb | style="text-align:right" | 51 | style="text-align:right" | 67 | 117.9055322(32) | 3.6(1) min | β⁺ | ¹¹⁸Sn | 1+ | | |-id=Antimony-118m1 | style="text-indent:1em" | ^118m1Sb | colspan="3" style="text-indent:2em" | 50.814(21) keV | 20.6(6) μs | IT | ¹¹⁸Sb | 3+ | | |-id=Antimony-118m2 | style="text-indent:1em" | ^118m2Sb | colspan="3" style="text-indent:2em" | 250(6) keV | 5.01(3) h | β⁺ | ¹¹⁸Sn | 8− | | |-id=Antimony-119 | ¹¹⁹Sb | style="text-align:right" | 51 | style="text-align:right" | 68 | 118.9039441(75) | 38.19(22) h | EC | ¹¹⁹Sn | 5/2+ | | |-id=Antimony-119m1 | style="text-indent:1em" | ^119m1Sb | colspan="3" style="text-indent:2em" | 2553.6(3) keV | 130(3) ns | IT | ¹¹⁹Sb | 19/2− | | |-id=Antimony-119m2 | style="text-indent:1em" | ^119m2Sb | colspan="3" style="text-indent:2em" | 2841.7(4) keV | 835(81) ms | IT | ¹¹⁹Sb | 25/2+ | | |-id=Antimony-120 | ¹²⁰Sb | style="text-align:right" | 51 | style="text-align:right" | 69 | 119.9050803(77) | 15.89(4) min | β⁺ | ¹²⁰Sn | 1+ | | |-id=Antimony-120m1 | style="text-indent:1em" | ^120m1Sb | colspan="3" style="text-indent:2em" | 0(100)# keV | 5.76(2) d | β⁺ | ¹²⁰Sn | 8− | | |-id=Antimony-120m2 | style="text-indent:1em" | ^120m2Sb | colspan="3" style="text-indent:2em" | 78.16(5) keV | 246(2) ns | IT | ¹²⁰Sb | (3+) | | |-id=Antimony-120m3 | style="text-indent:1em" | ^120m3Sb | colspan="3" style="text-indent:2em" | 2328(100)# keV | 400(8) ns | IT | ¹²⁰Sb | 13+ | | |-id=Antimony-121 | ¹²¹Sb | style="text-align:right" | 51 | style="text-align:right" | 70 | 120.9038114(27) | colspan=3 align=center|Stable | 5/2+ | 0.5721(5) | |-id=Antimony-121m | style="text-indent:1em" | ^121mSb | colspan="3" style="text-indent:2em" | 2751(17) keV | 179(6) μs | IT | ¹²¹Sb | (25/2+) | | |-id=Antimony-122 | rowspan=2|¹²²Sb | rowspan=2 style="text-align:right" | 51 | rowspan=2 style="text-align:right" | 71 | rowspan=2|121.9051693(27) | rowspan=2|2.7238(2) d | β⁻ (97.59%) | ¹²²Te | rowspan=2|2− | rowspan=2| | rowspan=2| |- | β⁺ (2.41%) | ¹²²Sn |-id=Antimony-122m1 | style="text-indent:1em" | ^122m1Sb | colspan="3" style="text-indent:2em" | 61.4131(5) keV | 1.86(8) μs | IT | ¹²²Sb | 3+ | | |-id=Antimony-122m2 | style="text-indent:1em" | ^122m2Sb | colspan="3" style="text-indent:2em" | 137.4726(8) keV | 0.53(3) ms | IT | ¹²²Sb | 5+ | | |-id=Antimony-122m3 | style="text-indent:1em" | ^122m3Sb | colspan="3" style="text-indent:2em" | 163.5591(17) keV | 4.191(3) min | IT | ¹²²Sb | 8− | | |-id=Antimony-123 | ¹²³Sb | style="text-align:right" | 51 | style="text-align:right" | 72 | 122.9042153(15) | colspan=3 align=center|Stable | 7/2+ | 0.4279(5) | |-id=Antimony-123m1 | style="text-indent:1em" | ^123m1Sb | colspan="3" style="text-indent:2em" | 2237.8(3) keV | 214(3) ns | IT | ¹²³Sb | 19/2− | | |-id=Antimony-123m2 | style="text-indent:1em" | ^123m2Sb | colspan="3" style="text-indent:2em" | 2613.4(4) keV | 65(1) μs | IT | ¹²³Sb | 23/2+ | | |-id=Antimony-124 | ¹²⁴Sb | style="text-align:right" | 51 | style="text-align:right" | 73 | 123.9059371(15) | 60.20(3) d | β⁻ | ¹²⁴Te | 3− | | |-id=Antimony-124m1 | rowspan=2 style="text-indent:1em" | ^124m1Sb | rowspan=2 colspan="3" style="text-indent:2em" | 10.8627(8) keV | rowspan=2|93(5) s | IT (75%) | ¹²⁴Sb | rowspan=2|5+ | rowspan=2| | rowspan=2| |- | β⁻ (25%) | ¹²⁴Te |-id=Antimony-124m2 | style="text-indent:1em" | ^124m2Sb | colspan="3" style="text-indent:2em" | 36.8440(14) keV | 20.2(2) min | IT | ^124m1Sb | (8)− | | |-id=Antimony-124m3 | style="text-indent:1em" | ^124m3Sb | colspan="3" style="text-indent:2em" | 40.8038(7) keV | 3.2(3) μs | IT | ¹²⁴Sb | (3+) | | |-id=Antimony-125 | ¹²⁵Sb | style="text-align:right" | 51 | style="text-align:right" | 74 | 124.9052543(27) | 2.7576(11) y | β⁻ | ¹²⁵Te | 7/2+ | | |-id=Antimony-125m1 | style="text-indent:1em" | ^125m1Sb | colspan="3" style="text-indent:2em" | 1971.25(20) keV | 4.1(2) μs | IT | ¹²⁵Sb | 15/2− | | |-id=Antimony-125m2 | style="text-indent:1em" | ^125m2Sb | colspan="3" style="text-indent:2em" | 2112.1(3) keV | 28.5(5) μs | IT | ¹²⁵Sb | 19/2− | | |-id=Antimony-125m3 | style="text-indent:1em" | ^125m3Sb | colspan="3" style="text-indent:2em" | 2471.0(4) keV | 277.0(64) ns | IT | ¹²⁵Sb | (23/2)+ | | |-id=Antimony-126 | ¹²⁶Sb | style="text-align:right" | 51 | style="text-align:right" | 75 | 125.907253(34) | 12.35(6) d | β⁻ | ¹²⁶Te | 8− | | |-id=Antimony-126m1 | rowspan=2 style="text-indent:1em" | ^126m1Sb | rowspan=2 colspan="3" style="text-indent:2em" | 17.7(3) keV | rowspan=2|19.15(8) min | β⁻ (86%) | ¹²⁶Te | rowspan=2|5+ | rowspan=2| | rowspan=2| |- | IT (14%) | ¹²⁶Sb |-id=Antimony-126m2 | style="text-indent:1em" | ^126m2Sb | colspan="3" style="text-indent:2em" | 40.4(3) keV | ~11 s | IT | ^126m1Sb | 3− | | |-id=Antimony-126m3 | style="text-indent:1em" | ^126m3Sb | colspan="3" style="text-indent:2em" | 104.6(3) keV | 553(5) ns | IT | ¹²⁶Sb | 3+ | | |-id=Antimony-126m4 | style="text-indent:1em" | ^126m4Sb | colspan="3" style="text-indent:2em" | 1810.7(17) keV | 90(16) ns | IT | ¹²⁶Sb | (13+) | | |-id=Antimony-127 | ¹²⁷Sb | style="text-align:right" | 51 | style="text-align:right" | 76 | 126.9069256(55) | 3.85(5) d | β⁻ | ¹²⁷Te | 7/2+ | | |-id=Antimony-127m1 | style="text-indent:1em" | ^127m1Sb | colspan="3" style="text-indent:2em" | 1920.19(21) keV | 11.7(1) μs | IT | ¹²⁷Sb | 15/2− | | |-id=Antimony-127m2 | style="text-indent:1em" | ^127m2Sb | colspan="3" style="text-indent:2em" | 2324.7(4) keV | 269(5) ns | IT | ¹²⁷Sb | 23/2+ | | |-id=Antimony-128 | ¹²⁸Sb | style="text-align:right" | 51 | style="text-align:right" | 77 | 127.909146(20) | 9.05(4) h | β⁻ | ¹²⁸Te | 8− | | |-id=Antimony-128m1 | rowspan=2 style="text-indent:1em" | ^128m1Sb | rowspan=2 colspan="3" style="text-indent:2em" | 10(6) keV | rowspan=2|10.41(18) min | β⁻ (96.4%) | ¹²⁸Te | rowspan=2|5+ | rowspan=2| | rowspan=2| |- | IT (3.6%) | ¹²⁸Sb |-id=Antimony-128m2 | style="text-indent:1em" | ^128m2Sb | colspan="3" style="text-indent:2em" | 1617.3(7) keV | 500(20) ns | IT | ¹²⁸Sb | (11+) | | |-id=Antimony-128m3 | style="text-indent:1em" | ^128m3Sb | colspan="3" style="text-indent:2em" | 1769.9(12) keV | 217(7) ns | IT | ¹²⁸Sb | (13+) | | |-id=Antimony-129 | ¹²⁹Sb | style="text-align:right" | 51 | style="text-align:right" | 78 | 128.909147(23) | 4.366(26) h | β⁻ | ¹²⁹Te | 7/2+ | | |-id=Antimony-129m1 | rowspan=2 style="text-indent:1em" | ^129m1Sb | rowspan=2 colspan="3" style="text-indent:2em" | 1851.31(6) keV | rowspan=2|17.7(1) min | β⁻ (85%) | ¹²⁹Te | rowspan=2|19/2− | rowspan=2| | rowspan=2| |- | IT (15%) | ¹²⁹Sb |-id=Antimony-129m2 | style="text-indent:1em" | ^129m2Sb | colspan="3" style="text-indent:2em" | 1861.06(5) keV | 2.23(17) μs | IT | ¹²⁹Sb | 15/2− | | |-id=Antimony-129m3 | style="text-indent:1em" | ^129m3Sb | colspan="3" style="text-indent:2em" | 2139.4(3) keV | 0.89(3) μs | IT | ¹²⁹Sb | 23/2+ | | |-id=Antimony-130 | ¹³⁰Sb | style="text-align:right" | 51 | style="text-align:right" | 79 | 129.911663(15) | 39.5(8) min | β⁻ | ¹³⁰Te | 8− | | |-id=Antimony-130m1 | style="text-indent:1em" | ^130m1Sb | colspan="3" style="text-indent:2em" | 4.80(20) keV | 6.3(2) min | β⁻ | ¹³⁰Te | 4+ | | |-id=Antimony-130m2 | style="text-indent:1em" | ^130m2Sb | colspan="3" style="text-indent:2em" | 84.67(4) keV | 800(100) ns | IT | ¹³⁰Sb | 6− | | |-id=Antimony-130m3 | style="text-indent:1em" | ^130m3Sb | colspan="3" style="text-indent:2em" | 1508(1) keV | 600(15) ns | IT | ¹³⁰Sb | (11+) | | |-id=Antimony-130m4 | style="text-indent:1em" | ^130m4Sb | colspan="3" style="text-indent:2em" | 1544.7(5) keV | 1.25(1) μs | IT | ¹³⁰Sb | (13+) | | |-id=Antimony-131 | ¹³¹Sb | style="text-align:right" | 51 | style="text-align:right" | 80 | 130.9119893(22) | 23.03(4) min | β⁻ | ¹³¹Te | 7/2+ | | |-id=Antimony-131m1 | style="text-indent:1em" | ^131m1Sb | colspan="3" style="text-indent:2em" | 1676.06(6) keV | 64.2(26) μs | IT | ¹³¹Sb | 15/2− | | |-id=Antimony-131m2 | style="text-indent:1em" | ^131m2Sb | colspan="3" style="text-indent:2em" | 1687.2(9) keV | 4.3(8) μs | IT | ¹³¹Sb | 19/2− | | |-id=Antimony-131m3 | style="text-indent:1em" | ^131m3Sb | colspan="3" style="text-indent:2em" | 2165.6(15) keV | 0.97(3) μs | IT | ¹³¹Sb | 23/2+ | | |-id=Antimony-132 | ¹³²Sb | style="text-align:right" | 51 | style="text-align:right" | 81 | 131.9145141(29) | 2.79(7) min | β⁻ | ¹³²Te | (4)+ | | |-id=Antimony-132m1 | style="text-indent:1em" | ^132m1Sb | colspan="3" style="text-indent:2em" | 139.3(20) keV | 4.10(5) min | β⁻ | ¹³²Te | (8−) | | |-id=Antimony-132m2 | style="text-indent:1em" | ^132m2Sb | colspan="3" style="text-indent:2em" | 254.5(3) keV | 102(4) ns | IT | ¹³²Sb | (6−) | | |-id=Antimony-133 | ¹³³Sb | style="text-align:right" | 51 | style="text-align:right" | 82 | 132.9152721(34) | 2.34(5) min | β⁻ | ¹³³Te | (7/2+) | | |-id=Antimony-133m | style="text-indent:1em" | ^133mSb | colspan="3" style="text-indent:2em" | 4541(9) keV | 16.54(19) μs | IT | ¹³³Sb | (21/2+) | | |-id=Antimony-134 | rowspan=2|¹³⁴Sb | rowspan=2 style="text-align:right" | 51 | rowspan=2 style="text-align:right" | 83 | rowspan=2|133.9205373(33) | rowspan=2|674(4) ms | β⁻ | ¹³⁴Te | rowspan=2|(0-) | rowspan=2| | rowspan=2| |- | β⁻, n? | ¹³³Te |-id=Antimony-134m | rowspan=2 style="text-indent:1em" | ^134mSb | rowspan=2 colspan="3" style="text-indent:2em" | 279(1) keV | rowspan=2|10.01(4) s | β⁻ (99.91%) | ¹³⁴Te | rowspan=2|(7−) | rowspan=2| | rowspan=2| |- | β⁻, n (0.088%) | ¹³³Te |-id=Antimony-135 | rowspan=2|¹³⁵Sb | rowspan=2 style="text-align:right" | 51 | rowspan=2 style="text-align:right" | 84 | rowspan=2|134.9251844(28) | rowspan=2|1.668(9) s | β⁻ (80.9%) | ¹³⁵Te | rowspan=2|(7/2+) | rowspan=2| | rowspan=2| |- | β⁻, n (19.1%) | ¹³⁴Te |-id=Antimony-136 | rowspan=3|¹³⁶Sb | rowspan=3 style="text-align:right" | 51 | rowspan=3 style="text-align:right" | 85 | rowspan=3|135.9307490(63) | rowspan=3|0.923(14) s | β⁻ (75.2%) | ¹³⁶Te | rowspan=3|(1−) | rowspan=3| | rowspan=3| |- | β⁻, n (24.7%) | ¹³⁵Te |- | β⁻, 2n (0.14%) | ¹³⁴Te |-id=Antimony-136m | style="text-indent:1em" | ^136mSb | colspan="3" style="text-indent:2em" | 269.3(5) keV | 570(5) ns | IT | ¹³⁶Sb | (6−) | | |-id=Antimony-137 | rowspan=3|¹³⁷Sb | rowspan=3 style="text-align:right" | 51 | rowspan=3 style="text-align:right" | 86 | rowspan=3|136.935523(56) | rowspan=3|497(21) ms | β⁻ (51%) | ¹³⁷Te | rowspan=3|7/2+# | rowspan=3| | rowspan=3| |- | β⁻, n (49%) | ¹³⁶Te |- | β⁻, 2n? | ¹³⁵Te |-id=Antimony-138 | rowspan=3|¹³⁸Sb | rowspan=3 style="text-align:right" | 51 | rowspan=3 style="text-align:right" | 87 | rowspan=3|137.94133(32)# | rowspan=3|333(7) ms | β⁻, n (72%) | ¹³⁷Te | rowspan=3|(3−) | rowspan=3| | rowspan=3| |- | β⁻ (28%) | ¹³⁸Te |- | β⁻, 2n? | ¹³⁶Te |-id=Antimony-139 | rowspan=3|¹³⁹Sb | rowspan=3 style="text-align:right" | 51 | rowspan=3 style="text-align:right" | 88 | rowspan=3|138.94627(43)# | rowspan=3|182(9) ms | β⁻, n (90%) | ¹³⁸Te | rowspan=3|7/2+# | rowspan=3| | rowspan=3| |- | β⁻ (10%) | ¹³⁹Te |- | β⁻, 2n? | ¹³⁷Te |-id=Antimony-140 | rowspan=3|¹⁴⁰Sb | rowspan=3 style="text-align:right" | 51 | rowspan=3 style="text-align:right" | 89 | rowspan=3|139.95235(64)# | rowspan=3|170(6) ms | β⁻ (69%) | ¹⁴⁰Te | rowspan=3|(3−) | rowspan=3| | rowspan=3| |- | β⁻, n (23%) | ¹³⁹Te |- | β⁻, 2n (7.6%) | ¹³⁸Te |-id=Antimony-140m | style="text-indent:1em" | ^140mSb | colspan="3" style="text-indent:2em" | 330(30)# keV | 41(8) μs | IT | ¹⁴⁰Sb | (6−,7−) | | |-id=Antimony-141 | rowspan=3|¹⁴¹Sb | rowspan=3 style="text-align:right" | 51 | rowspan=3 style="text-align:right" | 90 | rowspan=3|140.95755(54)# | rowspan=3|103(29) ms | β⁻ | ¹⁴¹Te | rowspan=3|7/2+# | rowspan=3| | rowspan=3| |- | β⁻, n? | ¹⁴⁰Te |- | β⁻, 2n? | ¹³⁹Te |-id=Antimony-142 | rowspan=3|¹⁴²Sb | rowspan=3 style="text-align:right" | 51 | rowspan=3 style="text-align:right" | 91 | rowspan=3|141.96392(32)# | rowspan=3|80(50) ms | β⁻ | ¹⁴²Te | rowspan=3| | rowspan=3| | rowspan=3| |- | β⁻, n? | ¹⁴¹Te |- | β⁻, 2n? | ¹⁴⁰Te Template:Isotopes table/footer

See also

Daughter products other than antimony

• Isotopes of tellurium
• Isotopes of tin
• Isotopes of indium

References

• Isotope masses from:
  • Template:NUBASE 2003
• Isotopic compositions and standard atomic masses from:
  • Template:CIAAW2003
  • Template:CIAAW 2005
• Half-life, spin, and isomer data selected from the following sources.
  • Template:NUBASE 2003
  • Template:NNDC
  • Template:CRC85