Isotop bismut

**[[Bismut]]** (**<sub>83</sub>Bi**) memiliki 41 isotop yang diketahui, mulai dari 184Bi hingga 224Bi. Bismut tidak memiliki satu pun isotop stabil, tetapi memiliki satu isotop yang berumur sangat panjang; dengan demikian, berat atom standarnya dapat diberikan sebagai . Meskipun <sup>209</sup>Bi sekarang diketahui tidak stabil, secara klasik ia dianggap sebagai isotop stabil karena memiliki waktu paruh sekitar 2,01 tahun, lebih dari satu miliar kali usia alam semesta. Selain 209Bi, radioisotop bismut yang paling stabil adalah 210mBi dengan waktu paruh 3,04 juta tahun, 208Bi dengan waktu paruh 368.000 tahun, dan 207Bi dengan waktu paruh 32,9 tahun, tidak ada dari mereka yang terjadi di alam. Semua isotop lain memiliki waktu paruh di bawah 1 tahun, sebagian besar di bawah satu hari. Dari semua radioisotop alami bismut, yang paling stabil adalah 210Bi yang radiogenik dengan waktu paruh 5,012 tahun. 210mBi, seperti <sup>180m</sup>Ta, <sup>242m</sup>Am dan beberapa isomer holmium, tidak biasa karena menjadi isomer nuklir dengan waktu paruh beberapa kali lipat lebih lama daripada keadaan dasarnya.

Secara komersial, isotop 213Bi dapat diproduksi dengan membombardir radium dengan foton *[[bremsstrahlung]]* dari sebuah pemercepat partikel linier. Pada tahun 1997, sebuah konjugat antibodi dengan 213Bi (yang memiliki waktu paruh 45 menit, dan meluruh melalui emisi partikel alfa) digunakan untuk mengobati pasien leukemia. Isotop ini juga telah dicoba dalam program terapi alfa bertarget (*targeted alpha therapy*, TAT) untuk mengobati berbagai jenis kanker. 213Bi juga ditemukan dalam rantai peluruhan <sup>233</sup>U, yang merupakan bahan bakar yang dibiakkan oleh reaktor torium.

## Daftar isotop

|-
| 184Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 101
| 184,00112(14)#
| 6,6(15)&nbsp;mdtk
|
|
| 3+#
|
|
|-
| style="text-indent:1em" | 184mBi
|
| colspan="3" style="text-indent:2em" | 150(100)#&nbsp;keV
| 13(2)&nbsp;mdtk
|
|
| 10−#
|
|
|-
| rowspan=2|185Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 102
| rowspan=2|184,99763(6)#
| rowspan=2|2#&nbsp;mdtk
| p
| 184Pb
| rowspan=2|9/2−#
| rowspan=2|
| rowspan=2|
|-
| α (langka)
| 181Tl
|-
| rowspan=2 style="text-indent:1em" | 185mBi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 70(50)#&nbsp;keV
| rowspan=2|49(7)&nbsp;μdtk
| α
| 181Tl
| rowspan=2|1/2+
| rowspan=2|
| rowspan=2|
|-
| p
| 184Pb
|-
| rowspan=2|186Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 103
| rowspan=2|185,99660(8)
| rowspan=2|14,8(7)&nbsp;mdtk
| α
| 182Tl
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (langka)
| 186Pb
|-
| rowspan=2 style="text-indent:1em" | 186mBi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 270(140)#&nbsp;keV
| rowspan=2|9,8(4)&nbsp;mdtk
| α
| 182Tl
| rowspan=2|(10−)
| rowspan=2|
| rowspan=2|
|-
| β+
| 186Pb
|-
| rowspan=2|187Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 104
| rowspan=2|186,993158(16)
| rowspan=2|32(3)&nbsp;mdtk
| α (50%)
| 183Tl
| rowspan=2|9/2−#
| rowspan=2|
| rowspan=2|
|-
| β+ (50%)
| 187Pb
|-
| style="text-indent:1em" | 187m1Bi
|
| colspan="3" style="text-indent:2em" | 101(20)&nbsp;keV
| 320(70)&nbsp;μdtk
|
|
| 1/2+#
|
|
|-
| style="text-indent:1em" | 187m2Bi
|
| colspan="3" style="text-indent:2em" | 252(1)&nbsp;keV
| 7(5)&nbsp;μdtk
|
|
| (13/2+)
|
|
|-
| rowspan=2|188Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 105
| rowspan=2|187,99227(5)
| rowspan=2|44(3)&nbsp;mdtk
| α
| 184Tl
| rowspan=2|3+#
| rowspan=2|
| rowspan=2|
|-
| β+ (langka)
| 188Pb
|-
| rowspan=2 style="text-indent:1em" | 188mBi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 210(140)#&nbsp;keV
| rowspan=2|220(40)&nbsp;mdtk
| α
| 184Tl
| rowspan=2|(10−)
| rowspan=2|
| rowspan=2|
|-
| β+ (langka)
| 188Pb
|-
| rowspan=2|189Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 106
| rowspan=2|188,98920(6)
| rowspan=2|674(11)&nbsp;mdtk
| α (51%)
| 185Tl
| rowspan=2|(9/2−)
| rowspan=2|
| rowspan=2|
|-
| β+ (49%)
| 189Pb
|-
| style="text-indent:1em" | 189m1Bi
|
| colspan="3" style="text-indent:2em" | 181(6)&nbsp;keV
| 5,0(1)&nbsp;mdtk
|
|
| (1/2+)
|
|
|-
| style="text-indent:1em" | 189m2Bi
|
| colspan="3" style="text-indent:2em" | 357(1)&nbsp;keV
| 880(50)&nbsp;ndtk
|
|
| (13/2+)
|
|
|-
| rowspan=2|190Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 107
| rowspan=2|189,9883(2)
| rowspan=2|6,3(1)&nbsp;dtk
| α (77%)
| 186Tl
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| β+ (30%)
| 190Pb
|-
| rowspan=2 style="text-indent:1em" | 190m1Bi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 420(180)&nbsp;keV
| rowspan=2|6,2(1)&nbsp;dtk
| α (70%)
| 186Tl
| rowspan=2|(10−)
| rowspan=2|
| rowspan=2|
|-
| β+ (23%)
| 190Pb
|-
| style="text-indent:1em" | 190m2Bi
|
| colspan="3" style="text-indent:2em" | 690(180)&nbsp;keV
| >500(100)&nbsp;ndtk
|
|
| 7+#
|
|
|-
| rowspan=2|191Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 108
| rowspan=2|190,985786(8)
| rowspan=2|12,3(3)&nbsp;dtk
| α (60%)
| 187Tl
| rowspan=2|(9/2−)
| rowspan=2|
| rowspan=2|
|-
| β+ (40%)
| 191Pb
|-
| rowspan=2 style="text-indent:1em" | 191mBi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 240(4)&nbsp;keV
| rowspan=2|124(5)&nbsp;mdtk
| α (75%)
| 187Tl
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| β+ (25%)
| 191Pb
|-
| rowspan=2|192Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 109
| rowspan=2|191,98546(4)
| rowspan=2|34,6(9)&nbsp;dtk
| β+ (82%)
| 192Pb
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| α (18%)
| 188Tl
|-
| rowspan=2 style="text-indent:1em" | 192mBi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 150(30)&nbsp;keV
| rowspan=2|39,6(4)&nbsp;dtk
| β+ (90,8%)
| 192Pb
| rowspan=2|(10−)
| rowspan=2|
| rowspan=2|
|-
| α (9,2%)
| 188Tl
|-
| rowspan=2|193Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 110
| rowspan=2|192,98296(1)
| rowspan=2|67(3)&nbsp;dtk
| β+ (95%)
| 193Pb
| rowspan=2|(9/2−)
| rowspan=2|
| rowspan=2|
|-
| α (5%)
| 189Tl
|-
| rowspan=2 style="text-indent:1em" | 193mBi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 308(7)&nbsp;keV
| rowspan=2|3,2(6)&nbsp;dtk
| α (90%)
| 189Tl
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| β+ (10%)
| 193Pb
|-
| rowspan=2|194Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 111
| rowspan=2|193,98283(5)
| rowspan=2|95(3)&nbsp;dtk
| β+ (99,54%)
| 194Pb
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| α (0,46%)
| 190Tl
|-
| rowspan=2 style="text-indent:1em" | 194m1Bi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 110(70)&nbsp;keV
| rowspan=2|125(2)&nbsp;dtk
| β+
| 194Pb
| rowspan=2|(6+, 7+)
| rowspan=2|
| rowspan=2|
|-
| α (langka)
| 190Tl
|-
| style="text-indent:1em" | 194m2Bi
|
| colspan="3" style="text-indent:2em" | 230(90)#&nbsp;keV
| 115(4)&nbsp;dtk
|
|
| (10−)
|
|
|-
| rowspan=2|195Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 112
| rowspan=2|194,980651(6)
| rowspan=2|183(4)&nbsp;dtk
| β+ (99,97%)
| 195Pb
| rowspan=2|(9/2−)
| rowspan=2|
| rowspan=2|
|-
| α (0,03%)
| 191Tl
|-
| rowspan=2 style="text-indent:1em" | 195m1Bi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 399(6)&nbsp;keV
| rowspan=2|87(1)&nbsp;dtk
| β+ (67%)
| 195Pb
| rowspan=2|(1/2+)
| rowspan=2|
| rowspan=2|
|-
| α (33%)
| 191Tl
|-
| style="text-indent:1em" | 195m2Bi
|
| colspan="3" style="text-indent:2em" | 2311,4+X&nbsp;keV
| 750(50)&nbsp;ndtk
|
|
| (29/2−)
|
|
|-
| rowspan=2|196Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 113
| rowspan=2|195,980667(26)
| rowspan=2|5,1(2)&nbsp;mnt
| β+ (99,99%)
| 196Pb
| rowspan=2|(3+)
| rowspan=2|
| rowspan=2|
|-
| α (0,00115%)
| 192Tl
|-
| rowspan=2 style="text-indent:1em" | 196m1Bi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 166,6(30)&nbsp;keV
| rowspan=2|0,6(5)&nbsp;dtk
| IT
| 196Bi
| rowspan=2|(7+)
| rowspan=2|
| rowspan=2|
|-
| β+
| 196Pb
|-
| style="text-indent:1em" | 196m2Bi
|
| colspan="3" style="text-indent:2em" | 270(3)&nbsp;keV
| 4,00(5)&nbsp;mnt
|
|
| (10−)
|
|
|-
| rowspan=2|197Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 114
| rowspan=2|196,978864(9)
| rowspan=2|9,33(50)&nbsp;mnt
| β+ (99,99%)
| 197Pb
| rowspan=2|(9/2−)
| rowspan=2|
| rowspan=2|
|-
| α (10−4%)
| 193Tl
|-
| rowspan=3 style="text-indent:1em" | 197m1Bi
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 690(110)&nbsp;keV
| rowspan=3|5,04(16)&nbsp;mnt
| α (55%)
| 193Tl
| rowspan=3|(1/2+)
| rowspan=3|
| rowspan=3|
|-
| β+ (45%)
| 197Pb
|-
| IT (0,3%)
| 197Bi
|-
| style="text-indent:1em" | 197m2Bi
|
| colspan="3" style="text-indent:2em" | 2129,3(4)&nbsp;keV
| 204(18)&nbsp;ndtk
|
|
| (23/2−)
|
|
|-
| style="text-indent:1em" | 197m3Bi
|
| colspan="3" style="text-indent:2em" | 2360,4(5)+X&nbsp;keV
| 263(13)&nbsp;ndtk
|
|
| (29/2−)
|
|
|-
| style="text-indent:1em" | 197m4Bi
|
| colspan="3" style="text-indent:2em" | 2383,1(7)+X&nbsp;keV
| 253(39)&nbsp;ndtk
|
|
| (29/2−)
|
|
|-
| style="text-indent:1em" | 197m5Bi
|
| colspan="3" style="text-indent:2em" | 2929,5(5)&nbsp;keV
| 209(30)&nbsp;ndtk
|
|
| (31/2−)
|
|
|-
| 198Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 115
| 197,97921(3)
| 10,3(3)&nbsp;mnt
| β+
| 198Pb
| (2+, 3+)
|
|
|-
| style="text-indent:1em" | 198m1Bi
|
| colspan="3" style="text-indent:2em" | 280(40)&nbsp;keV
| 11,6(3)&nbsp;mnt
| β+
| 198Pb
| (7+)
|
|
|-
| style="text-indent:1em" | 198m2Bi
|
| colspan="3" style="text-indent:2em" | 530(40)&nbsp;keV
| 7,7(5)&nbsp;dtk
|
|
| 10−
|
|
|-
| 199Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 116
| 198,977672(13)
| 27(1)&nbsp;mnt
| β+
| 199Pb
| 9/2−
|
|
|-
| rowspan=3 style="text-indent:1em" | 199m1Bi
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 667(4)&nbsp;keV
| rowspan=3|24,70(15)&nbsp;mnt
| β+ (98%)
| 199Pb
| rowspan=3|(1/2+)
| rowspan=3|
| rowspan=3|
|-
| IT (2%)
| 199Bi
|-
| α (0,01%)
| 195Tl
|-
| style="text-indent:1em" | 199m2Bi
|
| colspan="3" style="text-indent:2em" | 1947(25)&nbsp;keV
| 0,10(3)&nbsp;μdtk
|
|
| (25/2+)
|
|
|-
| style="text-indent:1em" | 199m3Bi
|
| colspan="3" style="text-indent:2em" | ~2547,0&nbsp;keV
| 168(13)&nbsp;ndtk
|
|
| 29/2−
|
|
|-
| 200Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 117
| 199,978132(26)
| 36,4(5)&nbsp;mnt
| β+
| 200Pb
| 7+
|
|
|-
| rowspan=2 style="text-indent:1em" | 200m1Bi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 100(70)#&nbsp;keV
| rowspan=2|31(2)&nbsp;mnt
| EC (90%)
| 200Pb
| rowspan=2|(2+)
| rowspan=2|
| rowspan=2|
|-
| IT (10%)
| 200Bi
|-
| style="text-indent:1em" | 200m2Bi
|
| colspan="3" style="text-indent:2em" | 428,20(10)&nbsp;keV
| 400(50)&nbsp;mdtk
|
|
| (10−)
|
|
|-
| rowspan=2|201Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 118
| rowspan=2|200,977009(16)
| rowspan=2|108(3)&nbsp;mnt
| β+ (99,99%)
| 201Pb
| rowspan=2|9/2−
| rowspan=2|
| rowspan=2|
|-
| α (10−4%)
| 197Tl
|-
| rowspan=3 style="text-indent:1em" | 201m1Bi
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 846,34(21)&nbsp;keV
| rowspan=3|59,1(6)&nbsp;mnt
| EC (92,9%)
| 201Pb
| rowspan=3|1/2+
| rowspan=3|
| rowspan=3|
|-
| IT (6,8%)
| 201Bi
|-
| α (0,3%)
| 197Tl
|-
| style="text-indent:1em" | 201m2Bi
|
| colspan="3" style="text-indent:2em" | 1932,2+X&nbsp;keV
| 118(28)&nbsp;ndtk
|
|
| (25/2+)
|
|
|-
| style="text-indent:1em" | 201m3Bi
|
| colspan="3" style="text-indent:2em" | 1971,2+X&nbsp;keV
| 105(75)&nbsp;ndtk
|
|
| (27/2+)
|
|
|-
| style="text-indent:1em" | 201m4Bi
|
| colspan="3" style="text-indent:2em" | 2739,90(20)+X&nbsp;keV
| 124(4)&nbsp;ndtk
|
|
| (29/2−)
|
|
|-
| rowspan=2|202Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 119
| rowspan=2|201,977742(22)
| rowspan=2|1,72(5)&nbsp;jam
| β+
| 202Pb
| rowspan=2|5(+#)
| rowspan=2|
| rowspan=2|
|-
| α (10−5%)
| 198Tl
|-
| style="text-indent:1em" | 202m1Bi
|
| colspan="3" style="text-indent:2em" | 615(7)&nbsp;keV
| 3,04(6)&nbsp;μdtk
|
|
| (10#)−
|
|
|-
| style="text-indent:1em" | 202m2Bi
|
| colspan="3" style="text-indent:2em" | 2607,1(5)&nbsp;keV
| 310(50)&nbsp;ndtk
|
|
| (17+)
|
|
|-
| rowspan=2|203Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 120
| rowspan=2|202,976876(23)
| rowspan=2|11,76(5)&nbsp;jam
| β+
| 203Pb
| rowspan=2|9/2−
| rowspan=2|
| rowspan=2|
|-
| α (10−5%)
| 199Tl
|-
| style="text-indent:1em" | 203m1Bi
|
| colspan="3" style="text-indent:2em" | 1098,14(7)&nbsp;keV
| 303(5)&nbsp;mdtk
| IT
| 203Bi
| 1/2+
|
|
|-
| style="text-indent:1em" | 203m2Bi
|
| colspan="3" style="text-indent:2em" | 2041,5(6)&nbsp;keV
| 194(30)&nbsp;ndtk
|
|
| 25/2+
|
|
|-
| 204Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 121
| 203,977813(28)
| 11,22(10)&nbsp;jam
| β+
| **<sup>204</sup>Pb**
| 6+
|
|
|-
| style="text-indent:1em" | 204m1Bi
|
| colspan="3" style="text-indent:2em" | 805,5(3)&nbsp;keV
| 13,0(1)&nbsp;mdtk
| IT
| 204Bi
| 10−
|
|
|-
| style="text-indent:1em" | 204m2Bi
|
| colspan="3" style="text-indent:2em" | 2833,4(11)&nbsp;keV
| 1,07(3)&nbsp;mdtk
|
|
| (17+)
|
|
|-
| 205Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 122
| 204,977389(8)
| 15,31(4)&nbsp;hri
| β+
| 205Pb
| 9/2−
|
|
|-
| 206Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 123
| 205,978499(8)
| 6,243(3)&nbsp;hri
| β+
| **<sup>206</sup>Pb**
| 6(+)
|
|
|-
| style="text-indent:1em" | 206m1Bi
|
| colspan="3" style="text-indent:2em" | 59,897(17)&nbsp;keV
| 7,7(2)&nbsp;μdtk
|
|
| (4+)
|
|
|-
| style="text-indent:1em" | 206m2Bi
|
| colspan="3" style="text-indent:2em" | 1044,8(5)&nbsp;keV
| 890(10)&nbsp;μdtk
|
|
| (10−)
|
|
|-
| 207Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 124
| 206,9784707(26)
| 32,9(14)&nbsp;thn
| β+
| **<sup>207</sup>Pb**
| 9/2−
|
|
|-
| style="text-indent:1em" | 207mBi
|
| colspan="3" style="text-indent:2em" | 2101,49(16)&nbsp;keV
| 182(6)&nbsp;μdtk
|
|
| 21/2+
|
|
|-
| 208Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 125
| 207,9797422(25)
| 3,68(4) thn
| β+
| **<sup>208</sup>Pb**
| (5)+
|
|
|-
| style="text-indent:1em" | 208mBi
|
| colspan="3" style="text-indent:2em" | 1571,1(4)&nbsp;keV
| 2,58(4)&nbsp;mdtk
| IT
| 208Bi
| (10)−
|
|
|-
| <sup>209</sup>Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 126
| 208,9803987(16)
| **2,01(8) thn**
| α
| **<sup>205</sup>Tl**
| 9/2−
| 1,0000
|
|-
| rowspan=2|210Bi
| rowspan=2|Radium E
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 127
| rowspan=2|209,9841204(16)
| rowspan=2|5,012(5)&nbsp;hri
| β−
| 210Po
| rowspan=2|1−
| rowspan=2|Renik
| rowspan=2|
|-
| α (1,32%)
| 206Tl
|-
| style="text-indent:1em" | 210mBi
|
| colspan="3" style="text-indent:2em" | 271,31(11)&nbsp;keV
| 3,04(6) thn
| α
| 206Tl
| 9−
|
|
|-
| rowspan=2|211Bi
| rowspan=2|Aktinium C
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 128
| rowspan=2|210,987269(6)
| rowspan=2|2,14(2)&nbsp;mnt
| α (99,72%)
| 207Tl
| rowspan=2|9/2−
| rowspan=2|Renik
| rowspan=2|
|-
| β− (0,276%)
| 211Po
|-
| style="text-indent:1em" | 211mBi
|
| colspan="3" style="text-indent:2em" | 1257(10)&nbsp;keV
| 1,4(3)&nbsp;μdtk
|
|
| (25/2−)
|
|
|-
| rowspan=3|212Bi
| rowspan=3|Torium C
| rowspan=3 style="text-align:right" | 83
| rowspan=3 style="text-align:right" | 129
| rowspan=3|211,9912857(21)
| rowspan=3|60,55(6)&nbsp;mnt
| β− (64,05%)
| 212Po
| rowspan=3|1(−)
| rowspan=3|Renik
| rowspan=3|
|-
| α (35,94%)
| 208Tl
|-
| β−, α (0,014%)
| **<sup>208</sup>Pb**
|-
| rowspan=3 style="text-indent:1em" | 212m1Bi
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 250(30)&nbsp;keV
| rowspan=3|25,0(2)&nbsp;mnt
| α (67%)
| 208Tl
| rowspan=3|(9−)
| rowspan=3|
| rowspan=3|
|-
| β− (33%)
| 212mPo
|-
| β−, α (0,3%)
| **<sup>208</sup>Pb**
|-
| style="text-indent:1em" | 212m2Bi
|
| colspan="3" style="text-indent:2em" | 2200(200)#&nbsp;keV
| 7,0(3)&nbsp;mnt
|
|
| >16
|
|
|-
| rowspan=2|213Bi
| rowspan=2|
| rowspan=2 style="text-align:right" | 83
| rowspan=2 style="text-align:right" | 130
| rowspan=2|212,994385(5)
| rowspan=2|45,59(6)&nbsp;mnt
| β− (97,91%)
| 213Po
| rowspan=2|9/2−
| rowspan=2|Renik
| rowspan=2|
|-
| α (2,09%)
| 209Tl
|-
| rowspan=3|214Bi
| rowspan=3|Radium C
| rowspan=3 style="text-align:right" | 83
| rowspan=3 style="text-align:right" | 131
| rowspan=3|213,998712(12)
| rowspan=3|19,9(4)&nbsp;mnt
| β− (99,97%)
| 214Po
| rowspan=3|1−
| rowspan=3|Renik
| rowspan=3|
|-
| α (0,021%)
| 210Tl
|-
| β−, α (0,003%)
| 210Pb
|-
| 215Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 132
| 215,001770(16)
| 7,6(2)&nbsp;mnt
| β−
| 215Po
| (9/2−)
| Renik
|
|-
| rowspan=2 style="text-indent:1em" | 215mBi
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 1347,5(25)&nbsp;keV
| rowspan=2| 36,9(6)&nbsp;dtk
| IT (76,9%)
| 215Bi
| rowspan=2| (25/2−)
| rowspan=2|
| rowspan=2|
|-
| β− (23,1%)
| 215Po
|-
| 216Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 133
| 216,006306(12)
| 2,17(5)&nbsp;mnt
| β−
| 216Po
| (6-, 7-)
|
|
|-
| style="text-indent:1em" | 216mBi
|
| colspan="3" style="text-indent:2em" | 24(19)&nbsp;keV
| 6,6(21)&nbsp;mnt
| β−
| 216Po
| 3-#
|
|
|-
| 217Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 134
| 217,009372(19)
| 98,5(8)&nbsp;dtk
| β−
| 217Po
| 9/2−#
|
|
|-
| style="text-indent:1em" | 217mBi
|
| colspan="3" style="text-indent:2em" | 1480(40)&nbsp;keV
| 2,70(6)&nbsp;μdtk
| IT
| 217Bi
| 25/2−#
|
|
|-
| 218Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 135
| 218,014188(29)
| 33(1)&nbsp;dtk
| β−
| 218Po
| (6-, 7-, 8-)
|
|
|-
| 219Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 136
| 219,017480(210)#
| 8,7(29)&nbsp;dtk
| β−
| 219Po
| 9/2-#
|
|
|-
| 220Bi
|
| style="text-align:right" | 83
| style="text-align:right" | 137
| 220,022350(320)#
| 9,5(57)&nbsp;dtk
| β−
| 220Po
| 1-#
|
|

## Referensi

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