# Isotopen van indium

Het chemisch element indium (In), met een atoommassa van 114,818(3) u, bezit 1 stabiele isotoop: $^{113}$In, dat in theorie in staat is om spontane splijting te ondergaan. De overige 37 radio-isotopen zijn onstabiel en hebben een relatief korte halveringstijd (de meeste minder dan een seconde).
De kortstlevende isotoop van indium is $^{97}$In, met een halfwaardetijd van ongeveer 5 milliseconden. De langstlevende is $^{115}$In, met een halfwaardetijd van 0,441 biljard jaar. Deze isotoop komt in de natuur het meest voor (de relatieve aanwezigheid bedraagt bijna 96%). Omdat de halfwaardetijd duizenden malen groter is dan de leeftijd van het universum, kan deze isotoop de facto als stabiel worden beschouwd. Op aarde is het een primordiaal nuclide, hetgeen impliceert dat het reeds bestond toen de aarde gevormd werd.

## Overzicht

| Nuclide | Z (p) | N (n) | Isotopische massa (u) | Halveringstijd | Radioactief verval | VP | Kernspin | Isotopische verhouding (molfractie) |
| Natuurlijk voorkomen (molfractie) |||
| $^{97}$In | 49 | 48 | 96,94954(64) | 5 ms | | | 9/2$^+$ | |
| $^{98}$In | 49 | 49 | 97,94214(21) | 45(23) ms | β$^+$ | $^{98}$Cd | 0$^+$ | |
| $^{98m}$In | 0(500) keV | 0(500) keV | 0(500) keV | 1,7(8) s | | | | |
| $^{99}$In | 49 | 50 | 98,93422(43) | 3,1(8) s | β$^+$ | $^{99}$Cd | 9/2$^+$ | |
| $^{99m}$In | 400(150) keV | 400(150) keV | 400(150) keV | 1 s | | | 1/2$^−$ | |
| $^{100}$In | 49 | 51 | 99,93111(27) | 5,9(2) s | β$^+$ (96,1%) | $^{100}$Cd | (6, 7)$^+$ | |
| $^{100}$In | 49 | 51 | 99,93111(27) | 5,9(2) s | β$^+$, p (3,9%) | $^{99}$Ag | (6, 7)$^+$ | |
| $^{101}$In | 49 | 52 | 100,92634(32) | 15,1(3) s | β$^+$ | $^{100}$Cd | 9/2$^+$ | |
| $^{101}$In | 49 | 52 | 100,92634(32) | 15,1(3) s | β$^+$, p | $^{100}$Ag | 9/2$^+$ | |
| $^{101m}$In | 550(100) keV | 550(100) keV | 550(100) keV | 10 s | | | 1/2$^−$ | |
| $^{102}$In | 49 | 53 | 101,92409(12) | 23,3(1) s | β$^+$ (99,99%) | $^{102}$Cd | (6$^+$) | |
| $^{102}$In | 49 | 53 | 101,92409(12) | 23,3(1) s | β$^+$, p (0,00929%) | $^{101}$Ag | (6$^+$) | |
| $^{103}$In | 49 | 54 | 102,919914(27) | 60(1) s | β$^+$ | $^{103}$Cd | 9/2$^+$ | |
| $^{103m}$In | 631,7(1) keV | 631,7(1) keV | 631,7(1) keV | 34(2) s | | | (1/2$^−$) | |
| $^{104}$In | 49 | 55 | 103,91830(9) | 1,80(3) min | β$^+$ | $^{104}$Cd | (5, 6)$^+$ | |
| $^{104m}$In | 93,48(10) keV | 93,48(10) keV | 93,48(10) keV | 15,7(5) s | IT (80%) | $^{104}$In | (3$^+$) | |
| $^{104m}$In | 93,48(10) keV | 93,48(10) keV | 93,48(10) keV | 15,7(5) s | β$^+$ (20%) | $^{104}$Cd | (3$^+$) | |
| $^{105}$In | 49 | 56 | 104,914674(19) | 5,07(7) min | β$^+$ | $^{105}$Cd | 9/2$^+$ | |
| $^{105m}$In | 674,1(3) keV | 674,1(3) keV | 674,1(3) keV | 48(6) s | IT | $^{105}$In | 1/2$^−$ | |
| $^{106}$In | 49 | 57 | 105,913465(13) | 6,2(1) min | β$^+$ | $^{106}$Cd | 7$^+$ | |
| $^{106m}$In | 28,6(3) keV | 28,6(3) keV | 28,6(3) keV | 5,2(1) min | β$^+$ | $^{106}$Cd | (3$^+$) | |
| $^{107}$In | 49 | 58 | 106,910295(12) | 32,4(3) min | β$^+$ | $^{107}$Cd | 9/2$^+$ | |
| $^{107m}$In | 678,5(3) keV | 678,5(3) keV | 678,5(3) keV | 50,4(6) s | IT | $^{107}$In | 1/2$^−$ | |
| $^{108}$In | 49 | 59 | 107,909698(10) | 58,0(12) min | β$^+$ | $^{108}$Cd | 7$^+$ | |
| $^{108m}$In | 29,75(5) keV | 29,75(5) keV | 29,75(5) keV | 39,6(7) min | β$^+$ | $^{108}$Cd | 2$^+$ | |
| $^{109}$In | 49 | 60 | 108,907151(6) | 4,2(1) uur | β$^+$ | $^{109}$Cd | 9/2$^+$ | |
| $^{109m1}$In | 650,1(3) keV | 650,1(3) keV | 650,1(3) keV | 1,34(7) min | IT | $^{109}$In | 1/2$^−$ | |
| $^{109m2}$In | 2101,8(2) keV | 2101,8(2) keV | 2101,8(2) keV | 209(6) ms | | | (19/2$^+$) | |
| $^{110}$In | 49 | 61 | 109,907165(13) | 4,9(1) uur | β$^+$ | $^{110}$Cd | 7$^+$ | |
| $^{110m}$In | 62,1(5) keV | 62,1(5) keV | 62,1(5) keV | 69,1(5) min | β$^+$ | $^{110}$Cd | 2$^+$ | |
| $^{111}$In | 49 | 62 | 110,905103(5) | 2,8047(5) d | EV | $^{111}$Cd | 9/2$^+$ | |
| $^{111m}$In | 536,95(6) keV | 536,95(6) keV | 536,95(6) keV | 7,7(2) min | IT | $^{111}$In | 1/2$^−$ | |
| $^{112}$In | 49 | 63 | 111,905532(6) | 14,97(10) min | β$^+$ (56%) | $^{112}$Cd | 1$^+$ | |
| $^{112}$In | 49 | 63 | 111,905532(6) | 14,97(10) min | β$^−$ (44%) | $^{112}$Sn | 1$^+$ | |
| $^{112m1}$In | 156,59(5) keV | 156,59(5) keV | 156,59(5) keV | 20,56(6) min | β$^+$ | $^{112}$Cd | 4$^+$ | |
| $^{112m2}$In | 350,76(9) keV | 350,76(9) keV | 350,76(9) keV | 690(50) ns | | | 7$^+$ | |
| $^{112m3}$In | 613,69(14) keV | 613,69(14) keV | 613,69(14) keV | 2,81(3) µs | | | 8$^−$ | |
| $^{113}$In | 49 | 64 | 112,904058(3) | stabiel | stabiel | stabiel | 9/2$^+$ | 0,0429(5) |
| $^{113m}$In | 391,699(3) keV | 391,699(3) keV | 391,699(3) keV | 1,6579(4) uur | IT | $^{113}$In | 1/2$^−$ | |
| $^{114}$In | 49 | 65 | 113,904914(3) | 71,9(1) s | β$^+$ (99,5%) | $^{114}$Cd | 1$^+$ | |
| $^{114}$In | 49 | 65 | 113,904914(3) | 71,9(1) s | β$^−$ (0,5%) | $^{114}$Sn | 1$^+$ | |
| $^{114m1}$In | 190,29(3) keV | 190,29(3) keV | 190,29(3) keV | 49,51(1) dagen | IT (96,75%) | $^{114}$In | 5$^+$ | |
| $^{114m1}$In | 190,29(3) keV | 190,29(3) keV | 190,29(3) keV | 49,51(1) dagen | β$^+$ (3,25%) | $^{114}$Cd | 5$^+$ | |
| $^{114m2}$In | 501,94(3) keV | 501,94(3) keV | 501,94(3) keV | 43,1(6) ms | IT (96,75%) | $^{114}$In | (8$^−$) | |
| $^{114m2}$In | 501,94(3) keV | 501,94(3) keV | 501,94(3) keV | 43,1(6) ms | β$^+$ (3,25%) | $^{114}$Cd | (8$^−$) | |
| $^{114m3}$In | 641,72(3) keV | 641,72(3) keV | 641,72(3) keV | 4,3(4) µs | | | (7$^+$) | |
| $^{115}$In | 49 | 66 | 114,903878(5) | 4,41(25) × 10$^{14}$ jaar | β$^−$ | $^{115}$Sn | 9/2$^+$ | 0,9571(5) |
| $^{115m}$In | 336,244(17) keV | 336,244(17) keV | 336,244(17) keV | 4,486(4) uur | IT (95%) | $^{115}$In | 1/2$^−$ | |
| $^{115m}$In | 336,244(17) keV | 336,244(17) keV | 336,244(17) keV | 4,486(4) uur | β$^−$ (5%) | $^{115}$Sn | 1/2$^−$ | |
| $^{116}$In | 49 | 67 | 115,905260(5) | 14,10(3) s | β$^−$ | $^{116}$Sn | 1$^+$ | |
| $^{116}$In | 49 | 67 | 115,905260(5) | 14,10(3) s | EV | $^{116}$Cd | 1$^+$ | |
| $^{116m1}$In | 127,267(6) keV | 127,267(6) keV | 127,267(6) keV | 54,29(17) min | | | 5$^+$ | |
| $^{116m2}$In | 289,660(6) keV | 289,660(6) keV | 289,660(6) keV | 2,18(4) s | | | 8$^−$ | |
| $^{117}$In | 49 | 68 | 116,904514(6) | 43,2(3) min | β$^−$ | $^{117}$Sn | 9/2$^+$ | |
| $^{117m}$In | 315,302(12) keV | 315,302(12) keV | 315,302(12) keV | 116,2(3) min | β$^−$ (52,91%) | $^{117}$Sn | 1/2$^−$ | |
| $^{117m}$In | 315,302(12) keV | 315,302(12) keV | 315,302(12) keV | 116,2(3) min | IT (47,09%) | $^{117}$In | 1/2$^−$ | |
| $^{118}$In | 49 | 69 | 117,906354(9) | 5,0(5) s | β$^−$ | $^{118}$Sn | 1$^+$ | |
| $^{118m1}$In | 100(50) keV | 100(50) keV | 100(50) keV | 4,364(7) min | β$^−$ | $^{118}$Sn | 5$^+$ | |
| $^{118m2}$In | 240(50) keV | 240(50) keV | 240(50) keV | 8,5(3) s | | | 8$^−$ | |
| $^{119}$In | 49 | 70 | 118,905845(8) | 2,4(1) min | β$^−$ | $^{119}$Sn | 9/2$^+$ | |
| $^{119m1}$In | 311,37(3) keV | 311,37(3) keV | 311,37(3) keV | 18,0(3) min | β$^−$ (94,4%) | $^{119}$Sn | 1/2$^−$ | |
| $^{119m1}$In | 311,37(3) keV | 311,37(3) keV | 311,37(3) keV | 18,0(3) min | IT (5,6%) | $^{119}$In | 1/2$^−$ | |
| $^{119m2}$In | 654,27(7) keV | 654,27(7) keV | 654,27(7) keV | 130(15) ns | | | 1/2$^+$, 3/2$^+$ | |
| $^{120}$In | 49 | 71 | 119,90796(4) | 3,08(8) s | β$^−$ | $^{120}$Sn | 1$^+$ | |
| $^{120m1}$In | 50(60) keV | 50(60) keV | 50(60) keV | 46,2(8) s | | | 5$^+$ | |
| $^{120m2}$In | 300(200) keV | 300(200) keV | 300(200) keV | 47,3(5) s | β$^−$ | $^{120}$Sn | 8$^−$ | |
| $^{121}$In | 49 | 72 | 120,907846(29) | 23,1(6) s | β$^−$ | $^{121}$Sn | 9/2$^+$ | |
| $^{121m}$In | 312,98(8) keV | 312,98(8) keV | 312,98(8) keV | 3,88(10) min | β$^−$ (98,8%) | $^{121}$Sn | 1/2- | |
| $^{121m}$In | 312,98(8) keV | 312,98(8) keV | 312,98(8) keV | 3,88(10) min | IT (1,2%) | $^{121}$In | 1/2- | |
| $^{122}$In | 49 | 73 | 121,91028(5) | 1,5(3) s | β$^−$ | $^{122}$Sn | 1$^+$ | |
| $^{122m1}$In | 40(60) keV | 40(60) keV | 40(60) keV | 10,3(6) s | | | 5$^+$ | |
| $^{122m2}$In | 290(140) keV | 290(140) keV | 290(140) keV | 10,8(4) s | β$^−$ | $^{122}$Sn | 8$^−$ | |
| $^{123}$In | 49 | 74 | 122,910438(26) | 6,17(5) s | β$^−$ | $^{123m}$Sn | 9/2$^+$ | |
| $^{123m}$In | 327,21(4) keV | 327,21(4) keV | 327,21(4) keV | 47,4(4) s | β$^−$ | $^{123m}$Sn | 1/2$^−$ | |
| $^{124}$In | 49 | 75 | 123,91318(5) | 3,11(10) s | β$^−$ | $^{124}$Sn | 3$^+$ | |
| $^{124m}$In | −20(70) keV | −20(70) keV | −20(70) keV | 3,7(2) s | β$^−$ | $^{124}$Sn | (8$^−$) | |
| $^{124m}$In | −20(70) keV | −20(70) keV | −20(70) keV | 3,7(2) s | IT | $^{124}$In | (8$^−$) | |
| $^{125}$In | 49 | 76 | 124,91360(3) | 2,36(4) s | β$^−$ | $^{125m}$Sn | 9/2$^+$ | |
| $^{125m}$In | 360,12(9) keV | 360,12(9) keV | 360,12(9) keV | 12,2(2) s | β$^−$ | $^{125}$Sn | 1/2$^−$ | |
| $^{126}$In | 49 | 77 | 125,91646(4) | 1,53(1) s | β$^−$ | $^{126}$Sn | 3$^+$ | |
| $^{126m}$In | 100(60) keV | 100(60) keV | 100(60) keV | 1,64(5) s | β$^−$ | $^{126}$Sn | 8$^−$ | |
| $^{127}$In | 49 | 78 | 126,91735(4) | 1,09(1) s | β$^−$ (99,97%) | $^{127m}$Sn | 9/2$^+$ | |
| $^{127}$In | 49 | 78 | 126,91735(4) | 1,09(1) s | β$^−$, n (0,03%) | $^{126}$Sn | 9/2$^+$ | |
| $^{127m}$In | 460(70) keV | 460(70) keV | 460(70) keV | 3,67(4) s | β$^−$ (99,31%) | $^{127m}$Sn | (1/2$^−$) | |
| $^{127m}$In | 460(70) keV | 460(70) keV | 460(70) keV | 3,67(4) s | β$^−$, n (0,69%) | $^{126}$Sn | (1/2$^−$) | |
| $^{128}$In | 49 | 79 | 127,92017(5) | 0,84(6) s | β$^−$ (99,96%) | $^{128}$Sn | 3$^+$ | |
| $^{128}$In | 49 | 79 | 127,92017(5) | 0,84(6) s | β$^−$, n (0,038%) | $^{127}$Sn | 3$^+$ | |
| $^{128m1}$In | 247,87(10) keV | 247,87(10) keV | 247,87(10) keV | 10(7) ms | | | 1$^−$ | |
| $^{128m2}$In | 320(60) keV | 320(60) keV | 320(60) keV | 720(100) ms | β$^−$ | $^{128}$Sn | (8$^−$) | |
| $^{129}$In | 49 | 80 | 128,92170(5) | 611(4) ms | β$^−$ (99,75%) | $^{129}$Sn | 9/2$^+$ | |
| $^{129}$In | 49 | 80 | 128,92170(5) | 611(4) ms | β$^−$, n (0,25%) | $^{128}$Sn | 9/2$^+$ | |
| $^{129m1}$In | 380(70) keV | 380(70) keV | 380(70) keV | 1,23(3) s | β$^−$ (97,2%) | $^{129}$Sn | (1/2$^−$) | |
| $^{129m1}$In | 380(70) keV | 380(70) keV | 380(70) keV | 1,23(3) s | β$^−$, n (2,5%) | $^{128}$Sn | (1/2$^−$) | |
| $^{129m1}$In | 380(70) keV | 380(70) keV | 380(70) keV | 1,23(3) s | IT (,3%) | $^{129}$In | (1/2$^−$) | |
| $^{129m2}$In | 1688,0(5) keV | 1688,0(5) keV | 1688,0(5) keV | 8,5(5) µs | | | 17/2$^−$ | |
| $^{130}$In | 49 | 81 | 129,92497(4) | 0,29(2) s | β$^−$ (98,35%) | $^{130}$Sn | 1$^−$ | |
| $^{130}$In | 49 | 81 | 129,92497(4) | 0,29(2) s | β$^−$, n (1,65%) | $^{129}$Sn | 1$^−$ | |
| $^{130m1}$In | 50(50) keV | 50(50) keV | 50(50) keV | 538(5) ms | | | 10$^−$ | |
| $^{130m2}$In | 400(60) keV | 400(60) keV | 400(60) keV | 0,54(1) s | | | (5$^+$) | |
| $^{131}$In | 49 | 82 | 130,92685(3) | 0,28(3) s | β$^−$ (97,8%) | $^{131}$Sn | (9/2$^+$) | |
| $^{131}$In | 49 | 82 | 130,92685(3) | 0,28(3) s | β$^−$, n (2,19%) | $^{130}$Sn | (9/2$^+$) | |
| $^{131m1}$In | 363(37) keV | 363(37) keV | 363(37) keV | 0,35(5) s | | | (1/2$^−$) | |
| $^{131m2}$In | 4,10(7) MeV | 4,10(7) MeV | 4,10(7) MeV | 320(60) ms | | | (19/2$^+$ tot 23/2$^+$) | |
| $^{132}$In | 49 | 83 | 131,93299(7) | 206(4) ms | β$^−$ (94,8%) | $^{132}$Sn | (7$^−$) | |
| $^{132}$In | 49 | 83 | 131,93299(7) | 206(4) ms | β$^−$, n (5,2%) | $^{131}$Sn | (7$^−$) | |
| $^{133}$In | 49 | 84 | 132,93781(32) | 165(3) ms | β$^−$, n (85%) | $^{132}$Sn | (9/2$^+$) | |
| $^{133}$In | 49 | 84 | 132,93781(32) | 165(3) ms | β$^−$ (15%) | $^{133}$Sn | (9/2$^+$) | |
| $^{133m}$In | 330(40) keV | 330(40) keV | 330(40) keV | 180 ms | IT | $^{133}$In | (1/2$^−$) | |
| $^{134}$In | 49 | 85 | 133,94415(43) | 140(4) ms | β$^−$ (79%) | $^{134}$Sn | | |
| $^{134}$In | 49 | 85 | 133,94415(43) | 140(4) ms | β$^−$, n (17%) | $^{133}$Sn | | |
| $^{134}$In | 49 | 85 | 133,94415(43) | 140(4) ms | β$^−$, 2n (4%) | $^{132}$Sn | | |
| $^{135}$In | 49 | 86 | 134,94933(54) | 92(10) ms | | | 9/2$^+$ | |

## Overzicht van isotopen per element

* (en) R.B. Firestone, S.Y. Frank Chu & C.M. Baglin (1999) - Table of Isotopes (online versie van de cd-rom)
* (en) G. Audi, A.H. Wapstra, C. Thibault, J. Blachot & O. Bersillon (2003) - The NUBASE evaluation of nuclear and decay properties, Nuclear Physics A, 729, pp. 3-128
* (en) J.R. de Laeter, J.K. Böhlke, P. De Bièvre, H. Hidaka, H.S. Peiser, K.J.R. Rosman & P.D.P. Taylor (2003) - Atomic weights of the elements. Review 2000 (IUPAC Technical Report), Pure and Applied Chemistry, 75 (6), pp. 683–800
* (en) M.E. Wieser (2006) - Atomic weights of the elements 2005 (IUPAC Technical Report), Pure and Applied Chemistry, 78 (11), pp. 2051–2066
* (en) David R. Lide (2004) - CRC Handbook of Chemistry and Physics (85th ed.), hoofdstuk 11, CRC Press - ISBN 978-0849304859
$^{96}$In · $^{97}$In · $^{98}$In · $^{98m}$In · $^{99}$In · $^{99m}$In · $^{100}$In · $^{101}$In · $^{101m}$In · $^{102}$In · $^{103}$In · $^{103m}$In · $^{104}$In · $^{104m}$In · $^{105}$In · $^{105m}$In · $^{106}$In · $^{106m}$In · $^{107}$In · $^{107m}$In · $^{108}$In · $^{108m}$In · $^{109}$In · $^{109m1}$In · $^{109m2}$In · $^{110}$In · $^{110m}$In · $^{111}$In · $^{111m}$In · $^{112}$In · $^{112m1}$In · $^{112m2}$In · $^{112m3}$In · $^{113}$In · $^{113m}$In · $^{114}$In · $^{114m1}$In · $^{114m2}$In · $^{114m3}$In · $^{115}$In · $^{115m}$In · $^{116}$In · $^{116m1}$In · $^{116m2}$In · $^{117}$In · $^{117m}$In · $^{118}$In · $^{118m1}$In · $^{118m2}$In · $^{119}$In · $^{119m1}$In · $^{119m2}$In · $^{120}$In · $^{120m1}$In · $^{120m2}$In · $^{121}$In · $^{121m}$In · $^{122}$In · $^{122m1}$In · $^{122m2}$In · $^{123}$In · $^{123m}$In · $^{124}$In · $^{124m}$In · $^{125}$In · $^{125m}$In · $^{126}$In · $^{126m}$In · $^{127}$In · $^{127m}$In · $^{128}$In · $^{128m1}$In · $^{128m2}$In · $^{129}$In · $^{129m1}$In · $^{129m2}$In · $^{130}$In · $^{130m1}$In · $^{130m2}$In · $^{131}$In · $^{131m1}$In · $^{131m2}$In · $^{132}$In · $^{133}$In · $^{133m}$In · $^{134}$In · $^{135}$In · $^{136}$In · $^{137}$In