Isotop talium

**[[Talium]]** (**<sub>81</sub>Tl**) memiliki 41 isotop dengan massa atom berkisar antara 176 hingga 216. Talium memiliki dua isotop stabil, 203Tl dan 205Tl. 204Tl adalah radioisotop talium yang paling stabil dengan waktu paruh 3,78 tahun. 207Tl, dengan waktu paruh 4,77 menit, memiliki waktu paruh terpanjang dari semua radioisotop talium alami. Semua isotop talium bersifat radioaktif atau stabil secara pengamatan, artinya mereka diprediksi bersifat radioaktif tetapi tidak ada peluruhan aktual yang teramati.

202Tl (waktu paruh 12,23 hari) dapat dibuat dalam siklotron sedangkan 204Tl (waktu paruh 3,78 tahun) dibuat dengan aktivasi neutron dari talium stabil dalam reaktor nuklir.

Dalam keadaan terionisasi penuh, isotop 205Tl dapat menjadi radioaktif, meluruh melalui peluruhan beta menjadi <sup>205</sup>Pb, tetapi 203Tl tetap stabil.

205Tl merupakan produk peluruhan dari <sup>209</sup>Bi, sebuah isotop yang pernah dianggap stabil tetapi sekarang diketahui mengalami peluruhan alfa dengan waktu paruh yang sangat panjang, yaitu 2,01 tahun. 205Tl berada di ujung rantai peluruhan deret neptunium.

## Daftar isotop

|-
| 176Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 95
| 176,00059(21)#
| 5,2(+30−14)&nbsp;mdtk
|
|
| (3&minus;, 4&minus;, 5&minus;)
|
|
|-
| rowspan=2|177Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 96
| rowspan=2|176,996427(27)
| rowspan=2|18(5)&nbsp;mdtk
| p
| 176Hg
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| α (langka)
| 173Au
|-
| rowspan=2 style="text-indent:1em" | 177mTl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 807(18)&nbsp;keV
| rowspan=2|230(40)&nbsp;μs
| p
| 176Hg
| rowspan=2|(11/2−)
| rowspan=2|
| rowspan=2|
|-
| α
| 173Au
|-
| rowspan=2|178Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 97
| rowspan=2|177,99490(12)#
| rowspan=2|255(10)&nbsp;mdtk
| α
| 174Au
| rowspan=2|
| rowspan=2|
| rowspan=2|
|-
| p (langka)
| 177Hg
|-
| rowspan=2|179Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 98
| rowspan=2|178,99109(5)
| rowspan=2|270(30)&nbsp;mdtk
| α
| 175Au
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| p (langka)
| 178Hg
|-
| rowspan=2 style="text-indent:1em" | 179mTl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 860(30)#&nbsp;keV
| rowspan=2|1,60(16)&nbsp;mdtk
| α
| 175Au
| rowspan=2|(9/2−)
| rowspan=2|
| rowspan=2|
|-
| IT (langka)
| 179Tl
|-
| rowspan=3|180Tl
| rowspan=3|
| rowspan=3 style="text-align:right" | 81
| rowspan=3 style="text-align:right" | 99
| rowspan=3|179,98991(13)#
| rowspan=3|1,5(2)&nbsp;dtk
| α (75%)
| 176Au
| rowspan=3|
| rowspan=3|
| rowspan=3|
|-
| β<sup>+</sup> (25%)
| 180Hg
|-
| EC, fisi (10−4%)
| **<sup>100</sup>Ru**, **<sup>80</sup>Kr**
|-
| rowspan=2|181Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 100
| rowspan=2|180,986257(10)
| rowspan=2|3,2(3)&nbsp;dtk
| α
| 177Au
| rowspan=2|1/2+#
| rowspan=2|
| rowspan=2|
|-
| β+
| 181Hg
|-
| rowspan=2 style="text-indent:1em" | 181mTl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 857(29)&nbsp;keV
| rowspan=2|1,7(4)&nbsp;mdtk
| α
| 177Au
| rowspan=2|9/2−#
| rowspan=2|
| rowspan=2|
|-
| β+
| 181Hg
|-
| rowspan=2|182Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 101
| rowspan=2|181,98567(8)
| rowspan=2|2,0(3)&nbsp;dtk
| β+ (96%)
| 182Hg
| rowspan=2|2−#
| rowspan=2|
| rowspan=2|
|-
| α (4%)
| 178Au
|-
| rowspan=2 style="text-indent:1em" | 182m1Tl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 100(100)#&nbsp;keV
| rowspan=2|2,9(5)&nbsp;dtk
| α
| 178Au
| rowspan=2|(7+)
| rowspan=2|
| rowspan=2|
|-
| β+ (langka)
| 182Hg
|-
| style="text-indent:1em" | 182m2Tl
|
| colspan="3" style="text-indent:2em" | 600(140)#&nbsp;keV
|
|
|
| 10−
|
|
|-
| rowspan=2|183Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 102
| rowspan=2|182,982193(10)
| rowspan=2|6,9(7)&nbsp;dtk
| β+ (98%)
| 183Hg
| rowspan=2|1/2+#
| rowspan=2|
| rowspan=2|
|-
| α (2%)
| 179Au
|-
| rowspan=2 style="text-indent:1em" | 183m1Tl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 630(17)&nbsp;keV
| rowspan=2|53,3(3)&nbsp;mdtk
| IT (99,99%)
| 183Tl
| rowspan=2|9/2−#
| rowspan=2|
| rowspan=2|
|-
| α (0,01%)
| 179Au
|-
| style="text-indent:1em" | 183m2Tl
|
| colspan="3" style="text-indent:2em" | 976,8(3)&nbsp;keV
| 1,48(10)&nbsp;μdtk
|
|
| (13/2+)
|
|
|-
| 184Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 103
| 183,98187(5)
| 9,7(6)&nbsp;dtk
| β+
| 184Hg
| 2−#
|
|
|-
| rowspan=2 style="text-indent:1em" | 184m1Tl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 100(100)#&nbsp;keV
| rowspan=2|10# dtk
| β+ (97,9%)
| 184Hg
| rowspan=2|7+#
| rowspan=2|
| rowspan=2|
|-
| α (2,1%)
| 180Au
|-
| rowspan=2 style="text-indent:1em" | 184m2Tl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 500(140)#&nbsp;keV
| rowspan=2| 47,1&nbsp;mdtk
| IT (99,911%)
|
| rowspan=2|(10−)
| rowspan=2|
| rowspan=2|
|-
| α (0,089%)
| 180Au
|-
| rowspan=2|185Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 104
| rowspan=2|184,97879(6)
| rowspan=2|19,5(5)&nbsp;dtk
| α
| 181Au
| rowspan=2|1/2+#
| rowspan=2|
| rowspan=2|
|-
| β+
| 185Hg
|-
| rowspan=3 style="text-indent:1em" | 185mTl
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 452,8(20)&nbsp;keV
| rowspan=3|1,93(8)&nbsp;dtk
| IT (99,99%)
| 185Tl
| rowspan=3|9/2−#
| rowspan=3|
| rowspan=3|
|-
| α (0,01%)
| 181Au
|-
| β+
| 185Hg
|-
| rowspan=2|186Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 105
| rowspan=2|185,97833(20)
| rowspan=2|40# dtk
| β+
| 186Hg
| rowspan=2|(2−)
| rowspan=2|
| rowspan=2|
|-
| α (0,006%)
| 182Au
|-
| style="text-indent:1em" | 186m1Tl
|
| colspan="3" style="text-indent:2em" | 320(180)&nbsp;keV
| 27,5(10)&nbsp;dtk
| β+
| 186Hg
| (7+)
|
|
|-
| style="text-indent:1em" | 186m2Tl
|
| colspan="3" style="text-indent:2em" | 690(180)&nbsp;keV
| 2,9(2)&nbsp;dtk
|
|
| (10−)
|
|
|-
| rowspan=2|187Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 106
| rowspan=2|186,975906(9)
| rowspan=2|~51 dtk
| β+
| 187Hg
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| α (langka)
| 183Au
|-
| rowspan=3 style="text-indent:1em" | 187mTl
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 335(3)&nbsp;keV
| rowspan=3|15,60(12)&nbsp;dtk
| α
| 183Au
| rowspan=3|(9/2−)
| rowspan=3|
| rowspan=3|
|-
| IT
| 187Tl
|-
| β+
| 187Hg
|-
| 188Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 107
| 187,97601(4)
| 71(2)&nbsp;dtk
| β+
| 188Hg
| (2−)
|
|
|-
| style="text-indent:1em" | 188m1Tl
|
| colspan="3" style="text-indent:2em" | 40(30)&nbsp;keV
| 71(1)&nbsp;dtk
| β+
| 188Hg
| (7+)
|
|
|-
| style="text-indent:1em" | 188m2Tl
|
| colspan="3" style="text-indent:2em" | 310(30)&nbsp;keV
| 41(4)&nbsp;mdtk
|
|
| (9−)
|
|
|-
| 189Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 108
| 188,973588(12)
| 2,3(2)&nbsp;mnt
| β+
| 189Hg
| (1/2+)
|
|
|-
| rowspan=2 style="text-indent:1em" | 189mTl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 257,6(13)&nbsp;keV
| rowspan=2|1,4(1)&nbsp;mnt
| β+ (96%)
| 189Hg
| rowspan=2|(9/2−)
| rowspan=2|
| rowspan=2|
|-
| IT (4%)
| 189Tl
|-
| 190Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 109
| 189,97388(5)
| 2,6(3)&nbsp;mnt
| β+
| 190Hg
| 2(−)
|
|
|-
| style="text-indent:1em" | 190m1Tl
|
| colspan="3" style="text-indent:2em" | 130(90)#&nbsp;keV
| 3,7(3)&nbsp;mnt
| β+
| 190Hg
| 7(+#)
|
|
|-
| style="text-indent:1em" | 190m2Tl
|
| colspan="3" style="text-indent:2em" | 290(70)#&nbsp;keV
| 750(40)&nbsp;μdtk
|
|
| (8−)
|
|
|-
| style="text-indent:1em" | 190m3Tl
|
| colspan="3" style="text-indent:2em" | 410(70)#&nbsp;keV
| >1&nbsp;μdtk
|
|
| 9−
|
|
|-
| 191Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 110
| 190,971786(8)
| 20#&nbsp;mnt
| β+
| 191Hg
| (1/2+)
|
|
|-
| style="text-indent:1em" | 191mTl
|
| colspan="3" style="text-indent:2em" | 297(7)&nbsp;keV
| 5,22(16)&nbsp;mnt
| β+
| 191Hg
| 9/2(−)
|
|
|-
| 192Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 111
| 191,97223(3)
| 9,6(4)&nbsp;mnt
| β+
| 192Hg
| (2−)
|
|
|-
| style="text-indent:1em" | 192m1Tl
|
| colspan="3" style="text-indent:2em" | 160(50)&nbsp;keV
| 10,8(2)&nbsp;mnt
| β+
| 192Hg
| (7+)
|
|
|-
| style="text-indent:1em" | 192m2Tl
|
| colspan="3" style="text-indent:2em" | 407(54)&nbsp;keV
| 296(5)&nbsp;ndtk
|
|
| (8−)
|
|
|-
| 193Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 112
| 192,97067(12)
| 21,6(8)&nbsp;mnt
| β+
| 193Hg
| 1/2(+#)
|
|
|-
| rowspan=2 style="text-indent:1em" | 193mTl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 369(4)&nbsp;keV
| rowspan=2|2,11(15)&nbsp;mnt
| IT (75%)
| 193Tl
| rowspan=2|9/2−
| rowspan=2|
| rowspan=2|
|-
| β+ (25%)
| 193Hg
|-
| rowspan=2|194Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 113
| rowspan=2|193,97120(15)
| rowspan=2|33,0(5)&nbsp;mnt
| β+
| 194Hg
| rowspan=2|2−
| rowspan=2|
| rowspan=2|
|-
| α (10−7%)
| 190Au
|-
| style="text-indent:1em" | 194mTl
|
| colspan="3" style="text-indent:2em" | 300(200)#&nbsp;keV
| 32,8(2)&nbsp;mnt
| β+
| 194Hg
| (7+)
|
|
|-
| 195Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 114
| 194,969774(15)
| 1,16(5)&nbsp;jam
| β+
| 195Hg
| 1/2+
|
|
|-
| style="text-indent:1em" | 195mTl
|
| colspan="3" style="text-indent:2em" | 482,63(17)&nbsp;keV
| 3,6(4)&nbsp;dtk
| IT
| 195Tl
| 9/2−
|
|
|-
| 196Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 115
| 195,970481(13)
| 1,84(3)&nbsp;jam
| β+
| **<sup>196</sup>Hg**
| 2−
|
|
|-
| rowspan=2 style="text-indent:1em" | 196mTl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 394,2(5)&nbsp;keV
| rowspan=2|1,41(2)&nbsp;jam
| β+ (95,5%)
| **<sup>196</sup>Hg**
| rowspan=2|(7+)
| rowspan=2|
| rowspan=2|
|-
| IT (4,5%)
| 196Tl
|-
| 197Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 116
| 196,969575(18)
| 2,84(4)&nbsp;jam
| β+
| 197Hg
| 1/2+
|
|
|-
| style="text-indent:1em" | 197mTl
|
| colspan="3" style="text-indent:2em" | 608,22(8)&nbsp;keV
| 540(10)&nbsp;mdtk
| IT
| 197Tl
| 9/2−
|
|
|-
| 198Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 117
| 197,97048(9)
| 5,3(5)&nbsp;jam
| β+
| **<sup>198</sup>Hg**
| 2−
|
|
|-
| rowspan=2 style="text-indent:1em" | 198m1Tl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 543,5(4)&nbsp;keV
| rowspan=2|1,87(3)&nbsp;jam
| β+ (54%)
| **<sup>198</sup>Hg**
| rowspan=2|7+
| rowspan=2|
| rowspan=2|
|-
| IT (46%)
| 198Tl
|-
| style="text-indent:1em" | 198m2Tl
|
| colspan="3" style="text-indent:2em" | 687,2(5)&nbsp;keV
| 150(40)&nbsp;ndtk
|
|
| (5+)
|
|
|-
| style="text-indent:1em" | 198m3Tl
|
| colspan="3" style="text-indent:2em" | 742,3(4)&nbsp;keV
| 32,1(10)&nbsp;mdtk
|
|
| (10−)#
|
|
|-
| 199Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 118
| 198,96988(3)
| 7,42(8)&nbsp;jam
| β+
| **<sup>199</sup>Hg**
| 1/2+
|
|
|-
| style="text-indent:1em" | 199mTl
|
| colspan="3" style="text-indent:2em" | 749,7(3)&nbsp;keV
| 28,4(2)&nbsp;mdtk
| IT
| 199Tl
| 9/2−
|
|
|-
| 200Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 119
| 199,970963(6)
| 26,1(1)&nbsp;jam
| β+
| **<sup>200</sup>Hg**
| 2−
|
|
|-
| style="text-indent:1em" | 200m1Tl
|
| colspan="3" style="text-indent:2em" | 753,6(2)&nbsp;keV
| 34,3(10)&nbsp;mdtk
| IT
| 200Tl
| 7+
|
|
|-
| style="text-indent:1em" | 200m2Tl
|
| colspan="3" style="text-indent:2em" | 762,0(2)&nbsp;keV
| 0,33(5)&nbsp;μdtk
|
|
| 5+
|
|
|-
| 201Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 120
| 200,970819(16)
| 72,912(17)&nbsp;jam
| EC
| **<sup>201</sup>Hg**
| 1/2+
|
|
|-
| style="text-indent:1em" | 201mTl
|
| colspan="3" style="text-indent:2em" | 919,50(9)&nbsp;keV
| 2,035(7)&nbsp;mdtk
| IT
| 201Tl
| (9/2−)
|
|
|-
| 202Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 121
| 201,972106(16)
| 12,23(2)&nbsp;hri
| β+
| **<sup>202</sup>Hg**
| 2−
|
|
|-
| style="text-indent:1em" | 202mTl
|
| colspan="3" style="text-indent:2em" | 950,19(10)&nbsp;keV
| 572(7)&nbsp;μdtk
|
|
| 7+
|
|
|-
| 203Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 122
| 202,9723442(14)
| colspan=3 align=center|**[[Stabil Secara Pengamatan]]**
| 1/2+
| 0,2952(1)
| 0,29494–0,29528
|-
| style="text-indent:1em" | 203mTl
|
| colspan="3" style="text-indent:2em" | 3400(300)&nbsp;keV
| 7,7(5)&nbsp;μdtk
|
|
| (25/2+)
|
|
|-
| rowspan=2|204Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 123
| rowspan=2|203,9738635(13)
| rowspan=2|3,78(2)&nbsp;thn
| β− (97,1%)
| **<sup>204</sup>Pb**
| rowspan=2|2−
| rowspan=2|
| rowspan=2|
|-
| EC (2,9%)
| **<sup>204</sup>Hg**
|-
| style="text-indent:1em" | 204m1Tl
|
| colspan="3" style="text-indent:2em" | 1104,0(4)&nbsp;keV
| 63(2)&nbsp;μdtk
|
|
| (7)+
|
|
|-
| style="text-indent:1em" | 204m2Tl
|
| colspan="3" style="text-indent:2em" | 2500(500)&nbsp;keV
| 2,6(2)&nbsp;μdtk
|
|
| (12−)
|
|
|-
| style="text-indent:1em" | 204m3Tl
|
| colspan="3" style="text-indent:2em" | 3500(500)&nbsp;keV
| 1,6(2)&nbsp;μdtk
|
|
| (20+)
|
|
|-
| 205Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 124
| 204,9744275(14)
| colspan=3 align=center|**Stabil Secara Pengamatan**
| 1/2+
| 0,7048(1)
| 0,70472–0,70506
|-
| style="text-indent:1em" | 205m1Tl
|
| colspan="3" style="text-indent:2em" | 3290,63(17)&nbsp;keV
| 2,6(2)&nbsp;μdtk
|
|
| 25/2+
|
|
|-
| style="text-indent:1em" | 205m2Tl
|
| colspan="3" style="text-indent:2em" | 4835,6(15)&nbsp;keV
| 235(10)&nbsp;ndtk
|
|
| (35/2–)
|
|
|-
| 206Tl
| Radium E*
| style="text-align:right" | 81
| style="text-align:right" | 125
| 205,9761103(15)
| 4,200(17)&nbsp;mnt
| β<sup>−</sup>
| *'206Pb**
| 0−
| Renik
|
|-
| style="text-indent:1em" | <sup>206m</sup>Tl
|
| colspan="3" style="text-indent:2em" | 2643,11(19)&nbsp;keV
| 3,74(3)&nbsp;mnt
| IT
| <sup>206</sup>Tl
| (12–)
|
|
|-
| <sup>207</sup>Tl
| Aktinium C''
| style="text-align:right" | 81
| style="text-align:right" | 126
| 206,977419(6)
| 4,77(2)&nbsp;mnt
| β<sup>−</sup>
| **207Pb**
| 1/2+
| Renik
|
|-
| rowspan=2 style="text-indent:1em" | <sup>207m</sup>Tl
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 1348,1(3)&nbsp;keV
| rowspan=2|1,33(11)&nbsp;dtk
| IT (99,9%)
| <sup>207</sup>Tl
| rowspan=2|11/2–
| rowspan=2|
| rowspan=2|
|-
| β<sup>−</sup> (0,1%)
| **207Pb**
|-
| <sup>208</sup>Tl
| Torium C"
| style="text-align:right" | 81
| style="text-align:right" | 127
| 207,9820187(21)
| 3,053(4)&nbsp;mnt
| β<sup>−</sup>
| **208Pb**
| 5+
| Renik
|
|-
| <sup>209</sup>Tl
|
| style="text-align:right" | 81
| style="text-align:right" | 128
| 208,985359(8)
| 2,161(7)&nbsp;mnt
| β<sup>−</sup>
| <sup>209</sup>Pb
| 1/2+
| Renik
|
|-
| rowspan=2|<sup>210</sup>Tl
| rowspan=2|Radium C″
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 129
| rowspan=2|209,990074(12)
| rowspan=2|1,30(3)&nbsp;mnt
| β<sup>−</sup> (99,991%)
| <sup>210</sup>Pb
| rowspan=2|(5+)#
| rowspan=2| Renik
| rowspan=2|
|-
| β<sup>−</sup>, [[Emisi neutron|n]] (0,009%)
| <sup>209</sup>Pb
|-
| rowspan=2|<sup>211</sup>Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 130
| rowspan=2|210,993480(50)
| rowspan=2|80(16)&nbsp;dtk
| β<sup>−</sup> (97,8%)
| <sup>211</sup>Pb
| rowspan=2|1/2+
| rowspan=2|
| rowspan=2|
|-
| β<sup>−</sup>, n (2,2%)
| <sup>210</sup>Pb
|-
| rowspan=2|<sup>212</sup>Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 131
| rowspan=2|211,998340(220)#
| rowspan=2|31(8)&nbsp;dtk
| β<sup>−</sup> (98,2%)
| <sup>212</sup>Pb
| rowspan=2|(5+)
| rowspan=2|
| rowspan=2|
|-
| β<sup>−</sup>, n (1,8%)
| <sup>211</sup>Pb
|-
| rowspan=2|<sup>213</sup>Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 132
| rowspan=2|213,001915(29)
| rowspan=2|24(4)&nbsp;dtk
| β<sup>−</sup> (92,4%)
| <sup>213</sup>Pb
| rowspan=2|1/2+
| rowspan=2|
| rowspan=2|
|-
| β<sup>−</sup>, n (7,6%)
| <sup>212</sup>Pb
|-
| rowspan=2|<sup>214</sup>Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 133
| rowspan=2|214,006940(210)#
| rowspan=2|11(2)&nbsp;dtk
| β<sup>−</sup> (66%)
| <sup>214</sup>Pb
| rowspan=2|5+#
| rowspan=2|
| rowspan=2|
|-
| β<sup>−</sup>, n (34%)
| <sup>213</sup>Pb
|-
| rowspan=2|<sup>215</sup>Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 134
| rowspan=2|215,010640(320)#
| rowspan=2|10(4)&nbsp;dtk
| β<sup>−</sup> (95,4%)
| <sup>215</sup>Pb
| rowspan=2|1/2+#
| rowspan=2|
| rowspan=2|
|-
| β<sup>−</sup>, n (4,6%)
| <sup>214</sup>Pb
|-
| rowspan=2|<sup>216</sup>Tl
| rowspan=2|
| rowspan=2 style="text-align:right" | 81
| rowspan=2 style="text-align:right" | 135
| rowspan=2|216,015800(320)#
| rowspan=2|6(3)&nbsp;dtk
| β<sup>−</sup>
| <sup>216</sup>Pb
| rowspan=2|5+#
| rowspan=2|
| rowspan=2|
|-
| β<sup>−</sup>, n (<11,5%)
| <sup>215</sup>Pb


==Talium-201==
**Talium-201''' (201Tl) adalah sebuah radioisotop sintetis talium. Ia memiliki waktu paruh 73 jam dan meluruh dengan menangkap elektron, memancarkan sinar-X (~70–80&nbsp;keV), dan foton 135 dan 167 keV dalam kelimpahan total 10%. 201Tl disintesis oleh aktivasi neutron talium stabil dalam reaktor nuklir, atau dengan reaksi nuklir 203Tl(p, 3n)201Pb di dalam siklotron, karena <sup>201</sup>Pb secara alami meluruh menjadi 201Tl sesudahnya. Ia merupakan radiofarmasi, karena memiliki karakteristik pencitraan yang baik tanpa dosis radiasi pasien yang berlebihan. Ia juga merupakan isotop paling populer yang digunakan untuk iskemia koroner inti talium.

## Referensi

* Massa isotop dari:
**
* Komposisi isotop dan massa atom standar dari:
**
**
* Data waktu paruh, spin, dan isomer dipilih dari sumber-sumber berikut.
**
**
**