# Isotopen van telluur

Het chemisch element telluur (Te), met een atoommassa van 127,60(3) u, bezit 6 stabiele isotopen: $^{120}$Te, $^{122}$Te, $^{123}$Te, $^{124}$Te, $^{125}$Te en $^{126}$Te. Het meest abundante nuclide is echter het radioactieve telluur-130. De 31 radio-isotopen zijn onstabiel en hebben een relatief korte halveringstijd (de meeste minder dan een seconde).
De kortstlevende isotoop van telluur is $^{105}$Te, met een halfwaardetijd van ongeveer 1 microseconde. De langstlevende is $^{128}$Te, met een halfwaardetijd van 2,2 quadriljoen jaar. Dit nuclide bezit de langste halfwaardetijd van alle bekende radioactieve nucliden. De op een na langstlevende isotoop is $^{130}$Te, met een halfwaardetijd van 790 triljoen jaar.
Telluur is het lichtste element waarbij alfaverval regelmatig wordt vastgesteld. Lichtere element kunnen dit type radioactief verval ondergaan, maar dit gebeurt slechts sporadisch.

## Overzicht

| Nuclide | Z (p) | N (n) | Isotopische massa (u) | Halveringstijd | Radioactief verval | VP | Kernspin | Isotopische verhouding (molfractie) |
| Natuurlijk voorkomen (molfractie) |||
| $^{105}$Te | 52 | 53 | 104,94364(54) | 1 µs | | | 5/2$^+$ | |
| $^{106}$Te | 52 | 54 | 105,93750(14) | 70(20) µs | α | $^{102}$Sn | 0$^+$ | |
| $^{107}$Te | 52 | 55 | 106,93501(32) | 3,1(1) ms | α (70%) | $^{103}$Sn | 5/2$^+$ | |
| $^{107}$Te | 52 | 55 | 106,93501(32) | 3,1(1) ms | β$^+$ (30%) | $^{107}$Sb | 5/2$^+$ | |
| $^{108}$Te | 52 | 56 | 107,92944(11) | 2,1(1) s | β$^+$ (51%) | $^{108}$Sb | 0$^+$ | |
| $^{108}$Te | 52 | 56 | 107,92944(11) | 2,1(1) s | α (49%) | $^{104}$Sn | 0$^+$ | |
| $^{108}$Te | 52 | 56 | 107,92944(11) | 2,1(1) s | β$^+$, p (2,4%) | $^{108}$Sb | 0$^+$ | |
| $^{108}$Te | 52 | 56 | 107,92944(11) | 2,1(1) s | β$^+$, α (0,065%) | $^{104}$In | 0$^+$ | |
| $^{109}$Te | 52 | 57 | 108,92742(7) | 4,6(3) s | β$^+$ (86,99%) | $^{109}$Sb | (5/2$^+$) | |
| $^{109}$Te | 52 | 57 | 108,92742(7) | 4,6(3) s | β$^+$, p (9,4%) | $^{108}$Sn | (5/2$^+$) | |
| $^{109}$Te | 52 | 57 | 108,92742(7) | 4,6(3) s | α (7,9%) | $^{105}$Sn | (5/2$^+$) | |
| $^{109}$Te | 52 | 57 | 108,92742(7) | 4,6(3) s | β$^+$, α (0,005%) | $^{105}$In | (5/2$^+$) | |
| $^{110}$Te | 52 | 58 | 109,92241(6) | 18,6(8) s | β$^+$ (99,99%) | $^{110}$Sb | 0$^+$ | |
| $^{110}$Te | 52 | 58 | 109,92241(6) | 18,6(8) s | β$^+$, p (0,003%) | $^{109}$Sn | 0$^+$ | |
| $^{111}$Te | 52 | 59 | 110,92111(8) | 19,3(4) s | β$^+$ | $^{111}$Sb | 5/2$^+$ | |
| $^{111}$Te | 52 | 59 | 110,92111(8) | 19,3(4) s | β$^+$, p (zelden) | $^{110}$Sn | 5/2$^+$ | |
| $^{112}$Te | 52 | 60 | 111,91701(18) | 2,0(2) min | β$^+$ | $^{112}$Sb | 0$^+$ | |
| $^{113}$Te | 52 | 61 | 112,91589(3) | 1,7(2) min | β$^+$ | $^{113}$Sb | (7/2$^+$) | |
| $^{114}$Te | 52 | 62 | 113,91209(3) | 15,2(7) min | β$^+$ | $^{114}$Sb | 0$^+$ | |
| $^{115}$Te | 52 | 63 | 114,91190(3) | 5,8(2) min | β$^+$ | $^{115}$Sb | 7/2$^+$ | |
| $^{115m1}$Te | 10(7) keV | 10(7) keV | 10(7) keV | 6,7(4) min | β$^+$ | $^{115}$Sb | 1/2$^+$ | |
| $^{115m1}$Te | 10(7) keV | 10(7) keV | 10(7) keV | 6,7(4) min | IT | $^{115}$Te | 1/2$^+$ | |
| $^{115m2}$Te | 280,05(20) keV | 280,05(20) keV | 280,05(20) keV | 7,5(2) µs | | | 11/2$^−$ | |
| $^{116}$Te | 52 | 64 | 115,90846(3) | 2,49(4) uur | β$^+$ | $^{116}$Sb | 0$^+$ | |
| $^{117}$Te | 52 | 65 | 116,908645(14) | 62(2) min | β$^+$ | $^{117}$Sb | 1/2$^+$ | |
| $^{117m}$Te | 296,1(5) keV | 296,1(5) keV | 296,1(5) keV | 103(3) ms | IT | $^{117}$Te | (11/2$^−$) | |
| $^{118}$Te | 52 | 66 | 117,905828(16) | 6,00(2) d | EV | $^{118}$Sb | 0$^+$ | |
| $^{119}$Te | 52 | 67 | 118,906404(9) | 16,05(5) uur | β$^+$ | $^{119}$Sb | 1/2$^+$ | |
| $^{119m}$Te | 260,96(5) keV | 260,96(5) keV | 260,96(5) keV | 4,70(4) dagen | β$^+$ (99,99%) | $^{119}$Sb | 11/2$^−$ | |
| $^{119m}$Te | 260,96(5) keV | 260,96(5) keV | 260,96(5) keV | 4,70(4) dagen | IT (0,008%) | $^{119}$Te | 11/2$^−$ | |
| $^{120}$Te | 52 | 68 | 119,90402(1) | stabiel | stabiel | stabiel | 0$^+$ | 9(1) × 10$^{−4}$ |
| $^{121}$Te | 52 | 69 | 120,904936(28) | 19,16(5) dagen | β$^+$ | $^{121}$Sb | 1/2$^+$ | |
| $^{121m}$Te | 293,991(22) keV | 293,991(22) keV | 293,991(22) keV | 154(7) dagen | IT (88,6%) | $^{121}$Te | 11/2$^−$ | |
| $^{121m}$Te | 293,991(22) keV | 293,991(22) keV | 293,991(22) keV | 154(7) dagen | β$^+$ (11,4%) | $^{121}$Sb | 11/2$^−$ | |
| $^{122}$Te | 52 | 70 | 121,9030439(16) | stabiel | stabiel | stabiel | 0$^+$ | 0,0255(12) |
| $^{123}$Te | 52 | 71 | 122,9042700(16) | stabiel | stabiel | stabiel | 1/2$^+$ | 0,0089(3) |
| $^{123m}$Te | 247,47(4) keV | 247,47(4) keV | 247,47(4) keV | 119,2(1) dagen | IT | $^{123}$Te | 11/2$^−$ | |
| $^{124}$Te | 52 | 72 | 123,9028179(16) | stabiel | stabiel | stabiel | 0$^+$ | 0,0474(14) |
| $^{125}$Te | 52 | 73 | 124,9044307(16) | stabiel | stabiel | stabiel | 1/2$^+$ | 0,0707(15) |
| $^{125m}$Te | 144,772(9) keV | 144,772(9) keV | 144,772(9) keV | 57,40(15) dagen | IT | $^{125}$Te | 11/2$^−$ | |
| $^{126}$Te | 52 | 74 | 125,9033117(16) | stabiel | stabiel | stabiel | 0$^+$ | 0,1884(25) |
| $^{127}$Te | 52 | 75 | 126,9052263(16) | 9,35(7) uur | β$^−$ | $^{127}$I | 3/2$^+$ | |
| $^{127m}$Te | 88,26(8) keV | 88,26(8) keV | 88,26(8) keV | 109(2) dagen | IT (97,6%) | $^{127}$Te | 11/2$^−$ | |
| $^{127m}$Te | 88,26(8) keV | 88,26(8) keV | 88,26(8) keV | 109(2) dagen | β$^−$ (2,4%) | $^{127}$I | 11/2$^−$ | |
| $^{128}$Te | 52 | 76 | 127,9044631(19) | 2,2(3) × 10$^{24}$ jaar | β$^−$β$^−$ | $^{128}$Xe | 0$^+$ | 0,3174(8) |
| $^{128m}$Te | 2790,7(4) keV | 2790,7(4) keV | 2790,7(4) keV | 370(30) ns | | | 10$^+$ | |
| $^{129}$Te | 52 | 77 | 128,9065982(19) | 69,6(3) min | β$^−$ | $^{129}$I | 3/2$^+$ | |
| $^{129m}$Te | 105,50(5) keV | 105,50(5) keV | 105,50(5) keV | 33,6(1) dagen | | | 11/2$^−$ | |
| $^{130}$Te | 52 | 78 | 129,9062244(21) | 790(100) × 10$^{18}$ jaar | β$^−$β$^−$ | $^{130}$Xe | 0$^+$ | 0,3408(62) |
| $^{130m1}$Te | 2146,41(4) keV | 2146,41(4) keV | 2146,41(4) keV | 115(8) ns | | | 7$^−$ | |
| $^{130m2}$Te | 2661(7) keV | 2661(7) keV | 2661(7) keV | 1,90(8) µs | | | (10$^+$) | |
| $^{130m3}$Te | 4375,4(18) keV | 4375,4(18) keV | 4375,4(18) keV | 261(33) ns | | | | |
| $^{131}$Te | 52 | 79 | 130,9085239(21) | 25,0(1) min | β$^−$ | $^{131}$I | 3/2$^+$ | |
| $^{131m}$Te | 182,250(20) keV | 182,250(20) keV | 182,250(20) keV | 30(2) uur | β$^−$ (77,8%) | $^{131}$I | 11/2$^−$ | |
| $^{131m}$Te | 182,250(20) keV | 182,250(20) keV | 182,250(20) keV | 30(2) uur | IT (22,2%) | $^{131}$Te | 11/2$^−$ | |
| $^{132}$Te | 52 | 80 | 131,908553(7) | 3,204(13) dagen | β$^−$ | $^{132}$I | 0$^+$ | |
| $^{133}$Te | 52 | 81 | 132,910955(26) | 12,5(3) min | β$^−$ | $^{133}$I | (3/2$^+$) | |
| $^{133m}$Te | 334,26(4) keV | 334,26(4) keV | 334,26(4) keV | 55,4(4) min | β$^−$ (82,5%) | $^{133}$I | (11/2$^−$) | |
| $^{133m}$Te | 334,26(4) keV | 334,26(4) keV | 334,26(4) keV | 55,4(4) min | IT (17,5%) | $^{133}$Te | (11/2$^−$) | |
| $^{134}$Te | 52 | 82 | 133,911369(11) | 41,8(8) min | β$^−$ | $^{134}$I | 0$^+$ | |
| $^{134m}$Te | 1691,34(16) keV | 1691,34(16) keV | 1691,34(16) keV | 164,1(9) ns | | | 6$^+$ | |
| $^{135}$Te | 52 | 83 | 134,91645(10) | 19,0(2) s | β$^−$ | $^{135}$I | (7/2$^−$) | |
| $^{135m}$Te | 1554,88(17) keV | 1554,88(17) keV | 1554,88(17) keV | 510(20) ns | | | (19/2$^−$) | |
| $^{136}$Te | 52 | 84 | 135,92010(5) | 17,63(8) s | β$^−$ (98,7%) | $^{136}$I | 0$^+$ | |
| $^{136}$Te | 52 | 84 | 135,92010(5) | 17,63(8) s | β$^−$, n (1,3%) | $^{135}$I | 0$^+$ | |
| $^{137}$Te | 52 | 85 | 136,92532(13) | 2,49(5) s | β$^−$ (97,01%) | $^{137}$I | 3/2- | |
| $^{137}$Te | 52 | 85 | 136,92532(13) | 2,49(5) s | β$^−$, n (2,99%) | $^{136}$I | 3/2- | |
| $^{138}$Te | 52 | 86 | 137,92922(22) | 1,4(4) s | β$^−$ (93,7%) | $^{138}$I | 0$^+$ | |
| $^{138}$Te | 52 | 86 | 137,92922(22) | 1,4(4) s | β$^−$, n (6,3%) | $^{137}$I | 0$^+$ | |
| $^{139}$Te | 52 | 87 | 138,93473(43) | 500 ms | β$^−$ | $^{139}$I | 5/2$^−$ | |
| $^{139}$Te | 52 | 87 | 138,93473(43) | 500 ms | β$^−$, n | $^{138}$I | 5/2$^−$ | |
| $^{140}$Te | 52 | 88 | 139,93885(32) | 300 ms | β$^−$ | $^{140}$I | 0$^+$ | |
| $^{140}$Te | 52 | 88 | 139,93885(32) | 300 ms | β$^−$, n | $^{139}$I | 0$^+$ | |
| $^{141}$Te | 52 | 89 | 140,94465(43) | 100 ms | β$^−$ | $^{141}$I | 5/2$^−$ | |
| $^{141}$Te | 52 | 89 | 140,94465(43) | 100 ms | β$^−$, n | $^{140}$I | 5/2$^−$ | |
| $^{142}$Te | 52 | 90 | 141,94908(64) | 50 ms | β$^−$ | $^{142}$I | 0$^+$ | |

## 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
$^{105}$Te · $^{106}$Te · $^{107}$Te · $^{108}$Te · $^{109}$Te · $^{110}$Te · $^{111}$Te · $^{112}$Te · $^{113}$Te · $^{114}$Te · $^{115}$Te · $^{115m1}$Te · $^{115m2}$Te · $^{116}$Te · $^{117}$Te · $^{117m}$Te · $^{118}$Te · $^{119}$Te · $^{119m}$Te · $^{120}$Te · $^{121}$Te · $^{121m}$Te · $^{122}$Te · $^{123}$Te · $^{123m}$Te · $^{124}$Te · $^{125}$Te · $^{125m}$Te · $^{126}$Te · $^{127}$Te · $^{127m}$Te · $^{128}$Te · $^{128m}$Te · $^{129}$Te · $^{129m}$Te · $^{130}$Te · $^{130m1}$Te · $^{130m2}$Te · $^{130m3}$Te · $^{131}$Te · $^{131m}$Te · $^{132}$Te · $^{133}$Te · $^{133m}$Te · $^{134}$Te · $^{134m}$Te · $^{135}$Te · $^{135m}$Te · $^{136}$Te · $^{137}$Te · $^{138}$Te · $^{139}$Te · $^{140}$Te · $^{141}$Te · $^{142}$Te · $^{143}$Te