Isotopes of bismuth

Bismuth (83Bi) has 41 known isotopes, ranging from 184Bi to 224Bi. Bismuth has no stable isotopes, but does have one very long-lived isotope; thus, the standard atomic weight can be given as $208.98$. Although bismuth-209 is now known to be radioactive, it has classically been considered to be a stable isotope because it has a half-life of approximately 2.01×1019 years, which is more than a billion times the age of the universe. Besides 209Bi, the most stable bismuth radioisotopes are 210mBi with a half-life of 3.04 million years, 208Bi with a half-life of 368,000 years and 207Bi, with a half-life of 32.9 years, none of which occurs in nature. All other isotopes have half-lives under 1 year, most under a day. Of naturally occurring radioisotopes, the most stable is radiogenic 210Bi with a half-life of 5.012 days. 210mBi is unusual for being a nuclear isomer with a half-life multiple orders of magnitude longer than that of the ground state.

List of isotopes

 * 184Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 101
 * 184.00135(13)#
 * 13(2) ms
 * α
 * 180Tl
 * 3+#
 * style="text-indent:1em" | 184mBi
 * colspan="3" style="text-indent:2em" | 150(100)# keV
 * 6.6(15) ms
 * α
 * 180Tl
 * 10−#
 * rowspan=2|185Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 102
 * rowspan=2|184.99760(9)#
 * rowspan=2|$2.8 μs$
 * p (92%)
 * 184Pb
 * rowspan=2|(1/2+)
 * rowspan=2|
 * α (8%)
 * 181Tl
 * style="text-indent:1em" | 185mBi
 * colspan="3" style="text-indent:2em" | 70(50)# keV
 * 58(2) μs
 * IT
 * 185Bi
 * (7/2−, 9/2−)
 * rowspan=3|186Bi
 * rowspan=3|
 * rowspan=3 style="text-align:right" | 83
 * rowspan=3 style="text-align:right" | 103
 * rowspan=3|185.996623(18)
 * rowspan=3|14.8(7) ms
 * α
 * 182Tl
 * rowspan=3|(3+)
 * rowspan=3|
 * β+?
 * 186Pb
 * β+, SF (0.011%)
 * (various)
 * rowspan=3 style="text-indent:1em" | 186mBi
 * rowspan=3|
 * rowspan=3 colspan="3" style="text-indent:2em" | 170(100)# keV
 * rowspan=3|9.8(4) ms
 * α
 * 182Tl
 * rowspan=3|(10−)
 * rowspan=3|
 * β+?
 * 186Pb
 * β+, SF (0.011%)
 * (various)
 * rowspan=2|187Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 104
 * rowspan=2|186.993147(11)
 * rowspan=2|37(2) ms
 * α
 * 183Tl
 * rowspan=2|(9/2−)
 * rowspan=2|
 * β+ (rare)
 * 187Pb
 * style="text-indent:1em" | 187m1Bi
 * colspan="3" style="text-indent:2em" | 108(8) keV
 * 370(20) μs
 * α
 * 183Tl
 * (1/2+)
 * style="text-indent:1em" | 187m2Bi
 * colspan="3" style="text-indent:2em" | 252(3) keV
 * 7(5) μs
 * IT
 * 187Bi
 * (13/2+)
 * rowspan=3|188Bi
 * rowspan=3|
 * rowspan=3 style="text-align:right" | 83
 * rowspan=3 style="text-align:right" | 105
 * rowspan=3| 187.992276(12)
 * rowspan=3|60(3) ms
 * α
 * 184Tl
 * rowspan=3|(3+)
 * rowspan=3|
 * β+ (rare)
 * 188Pb
 * β+, SF (0.0014%)
 * (various)
 * style="text-indent:1em" | 188m1Bi
 * colspan="3" style="text-indent:2em" | 66(30) keV
 * >5 μs
 * IT
 * 184Tl
 * 7+#
 * rowspan=2 style="text-indent:1em" | 188m2Bi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 153(30) keV
 * rowspan=2|265(15) ms
 * α
 * 184Tl
 * rowspan=2|(10−)
 * rowspan=2|
 * β+ (rare)
 * 188Pb
 * rowspan=2|189Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 106
 * rowspan=2|188.989195(22)
 * rowspan=2|688(5) ms
 * α
 * 185Tl
 * rowspan=2|(9/2−)
 * rowspan=2|
 * β+?
 * 189Pb
 * rowspan=2 style="text-indent:1em" | 189m1Bi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 184(5) keV
 * rowspan=2|5.0(1) ms
 * α (83%)
 * 185Tl
 * rowspan=2|(1/2+)
 * rowspan=2|
 * IT (17%)
 * 189Bi
 * style="text-indent:1em" | 189m2Bi
 * colspan="3" style="text-indent:2em" | 357.6(5) keV
 * 880(50) ns
 * IT
 * 189Bi
 * (13/2+)
 * rowspan=3|190Bi
 * rowspan=3|
 * rowspan=3 style="text-align:right" | 83
 * rowspan=3 style="text-align:right" | 107
 * rowspan=3|189.988625(23)
 * rowspan=3|6.3(1) s
 * α (77%)
 * 186Tl
 * rowspan=3|(3+)
 * rowspan=3|
 * β+ (23%)
 * 190Pb
 * β+, SF (6×10-6%)
 * (various)
 * rowspan=3 style="text-indent:1em" | 190m1Bi
 * rowspan=3|
 * rowspan=3 colspan="3" style="text-indent:2em" | 120(40) keV
 * rowspan=3|6.2(1) s
 * α (70%)
 * 186Tl
 * rowspan=3|(10−)
 * rowspan=3|
 * β+ (30%)
 * 190Pb
 * β+,SF (4×10-6%)
 * (various)
 * style="text-indent:1em" | 190m2Bi
 * colspan="3" style="text-indent:2em" | 121(15) keV
 * 175(8) ns
 * IT
 * 190Bi
 * (5−)
 * style="text-indent:1em" | 190m3Bi
 * colspan="3" style="text-indent:2em" | 394(40) keV
 * 1.3(8) μs
 * IT
 * 190Bi
 * (8−)
 * rowspan=2|191Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 108
 * rowspan=2|190.985787(8)
 * rowspan=2|12.4(3) s
 * α (51%)
 * 187Tl
 * rowspan=2|(9/2−)
 * rowspan=2|
 * β+ (49%)
 * 191Pb
 * rowspan=3 style="text-indent:1em" | 191m1Bi
 * rowspan=3|
 * rowspan=3 colspan="3" style="text-indent:2em" | 242(4) keV
 * rowspan=3|124(5) ms
 * α (68%)
 * 187Tl
 * rowspan=3|(1/2+)
 * rowspan=3|
 * IT (32%)
 * 191Bi
 * β+ (rare)
 * 191Pb
 * style="text-indent:1em" | 191m2Bi
 * colspan="3" style="text-indent:2em" | 429.7(5) keV
 * 562(10) ns
 * IT
 * 191Bi
 * (13/2+)
 * style="text-indent:1em" | 191m3Bi
 * colspan="3" style="text-indent:2em" | 1875(25)# keV
 * 400(40) ns
 * IT
 * 191Bi
 * 25/2-#
 * rowspan=2|192Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 109
 * rowspan=2|191.98547(3)
 * rowspan=2|34.6(9) s
 * β+ (82%)
 * 192Pb
 * rowspan=2|(3+)
 * rowspan=2|
 * α (18%)
 * 188Tl
 * rowspan=2 style="text-indent:1em" | 192mBi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 150(30) keV
 * rowspan=2|39.6(4) s
 * β+ (90.8%)
 * 192Pb
 * rowspan=2|(10−)
 * 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|192.982947(8)
 * rowspan=2|67(3) s
 * β+ (95%)
 * 193Pb
 * rowspan=2|(9/2−)
 * rowspan=2|
 * α (5%)
 * 189Tl
 * rowspan=2 style="text-indent:1em" | 193mBi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 308(7) keV
 * rowspan=2|3.2(6) s
 * α (90%)
 * 189Tl
 * rowspan=2|(1/2+)
 * 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|193.982799(6)
 * rowspan=2|95(3) s
 * β+ (99.54%)
 * 194Pb
 * rowspan=2|(3+)
 * rowspan=2|
 * α (.46%)
 * 190Tl
 * rowspan=2 style="text-indent:1em" | 194m1Bi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 110(70) keV
 * rowspan=2|125(2) s
 * β+
 * 194Pb
 * rowspan=2|(6+, 7+)
 * rowspan=2|
 * α (rare)
 * 190Tl
 * style="text-indent:1em" | 194m2Bi
 * colspan="3" style="text-indent:2em" | 230(90)# keV
 * 115(4) s
 * (10−)
 * rowspan=2|195Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 112
 * rowspan=2|194.980649(6)
 * rowspan=2|183(4) s
 * β+ (99.97%)
 * 195Pb
 * rowspan=2|(9/2−)
 * rowspan=2|
 * α (.03%)
 * 191Tl
 * rowspan=2 style="text-indent:1em" | 195m1Bi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 399(6) keV
 * rowspan=2|87(1) s
 * β+ (67%)
 * 195Pb
 * rowspan=2|(1/2+)
 * rowspan=2|
 * α (33%)
 * 191Tl
 * style="text-indent:1em" | 195m2Bi
 * colspan="3" style="text-indent:2em" | 2311.4+X keV
 * 750(50) ns
 * (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) min
 * β+ (99.99%)
 * 196Pb
 * rowspan=2|(3+)
 * rowspan=2|
 * α (.00115%)
 * 192Tl
 * rowspan=2 style="text-indent:1em" | 196m1Bi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 166.6(30) keV
 * rowspan=2|0.6(5) s
 * IT
 * 196Bi
 * rowspan=2|(7+)
 * rowspan=2|
 * β+
 * 196Pb
 * style="text-indent:1em" | 196m2Bi
 * colspan="3" style="text-indent:2em" | 270(3) keV
 * 4.00(5) min
 * (10−)
 * rowspan=2|197Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 114
 * rowspan=2|196.978865(9)
 * rowspan=2|9.33(50) min
 * β+ (99.99%)
 * 197Pb
 * rowspan=2|(9/2−)
 * 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) keV
 * rowspan=3|5.04(16) min
 * α (55%)
 * 193Tl
 * rowspan=3|(1/2+)
 * rowspan=3|
 * β+ (45%)
 * 197Pb
 * IT (.3%)
 * 197Bi
 * style="text-indent:1em" | 197m2Bi
 * colspan="3" style="text-indent:2em" | 2129.3(4) keV
 * 204(18) ns
 * (23/2−)
 * style="text-indent:1em" | 197m3Bi
 * colspan="3" style="text-indent:2em" | 2360.4(5)+X keV
 * 263(13) ns
 * (29/2−)
 * style="text-indent:1em" | 197m4Bi
 * colspan="3" style="text-indent:2em" | 2383.1(7)+X keV
 * 253(39) ns
 * (29/2−)
 * style="text-indent:1em" | 197m5Bi
 * colspan="3" style="text-indent:2em" | 2929.5(5) keV
 * 209(30) ns
 * (31/2−)
 * 198Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 115
 * 197.979201(30)
 * 10.3(3) min
 * β+
 * 198Pb
 * (2+, 3+)
 * style="text-indent:1em" | 198m1Bi
 * colspan="3" style="text-indent:2em" | 280(40) keV
 * 11.6(3) min
 * β+
 * 198Pb
 * (7+)
 * style="text-indent:1em" | 198m2Bi
 * colspan="3" style="text-indent:2em" | 530(40) keV
 * 7.7(5) s
 * 10−
 * 199Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 116
 * 198.977673(11)
 * 27(1) min
 * β+
 * 199Pb
 * 9/2−
 * rowspan=3 style="text-indent:1em" | 199m1Bi
 * rowspan=3|
 * rowspan=3 colspan="3" style="text-indent:2em" | 667(4) keV
 * rowspan=3|24.70(15) min
 * β+ (98%)
 * 199Pb
 * rowspan=3|(1/2+)
 * rowspan=3|
 * IT (2%)
 * 199Bi
 * α (.01%)
 * 195Tl
 * style="text-indent:1em" | 199m2Bi
 * colspan="3" style="text-indent:2em" | 1947(25) keV
 * 0.10(3) μs
 * (25/2+)
 * style="text-indent:1em" | 199m3Bi
 * colspan="3" style="text-indent:2em" | ~2547.0 keV
 * 168(13) ns
 * 29/2−
 * 200Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 117
 * 199.978131(24)
 * 36.4(5) min
 * β+
 * 200Pb
 * 7+
 * rowspan=2 style="text-indent:1em" | 200m1Bi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 100(70)# keV
 * rowspan=2|31(2) min
 * EC (90%)
 * 200Pb
 * rowspan=2|(2+)
 * rowspan=2|
 * IT (10%)
 * 200Bi
 * style="text-indent:1em" | 200m2Bi
 * colspan="3" style="text-indent:2em" | 428.20(10) keV
 * 400(50) ms
 * (10−)
 * rowspan=2|201Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 118
 * rowspan=2|200.976995(13)
 * rowspan=2|108(3) min
 * β+ (99.99%)
 * 201Pb
 * rowspan=2|9/2−
 * 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) keV
 * rowspan=3|59.1(6) min
 * EC (92.9%)
 * 201Pb
 * rowspan=3|1/2+
 * rowspan=3|
 * IT (6.8%)
 * 201Bi
 * α (.3%)
 * 197Tl
 * style="text-indent:1em" | 201m2Bi
 * colspan="3" style="text-indent:2em" | 1932.2+X keV
 * 118(28) ns
 * (25/2+)
 * style="text-indent:1em" | 201m3Bi
 * colspan="3" style="text-indent:2em" | 1971.2+X keV
 * 105(75) ns
 * (27/2+)
 * style="text-indent:1em" | 201m4Bi
 * colspan="3" style="text-indent:2em" | 2739.90(20)+X keV
 * 124(4) ns
 * (29/2−)
 * rowspan=2|202Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 119
 * rowspan=2|201.977723(15)
 * rowspan=2|1.72(5) h
 * β+
 * 202Pb
 * rowspan=2|5(+#)
 * rowspan=2|
 * α (10−5%)
 * 198Tl
 * style="text-indent:1em" | 202m1Bi
 * colspan="3" style="text-indent:2em" | 615(7) keV
 * 3.04(6) μs
 * (10#)−
 * style="text-indent:1em" | 202m2Bi
 * colspan="3" style="text-indent:2em" | 2607.1(5) keV
 * 310(50) ns
 * (17+)
 * rowspan=2|203Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 120
 * rowspan=2|202.976892(14)
 * rowspan=2|11.76(5) h
 * β+
 * 203Pb
 * rowspan=2|9/2−
 * rowspan=2|
 * α (10−5%)
 * 199Tl
 * style="text-indent:1em" | 203m1Bi
 * colspan="3" style="text-indent:2em" | 1098.14(7) keV
 * 303(5) ms
 * IT
 * 203Bi
 * 1/2+
 * style="text-indent:1em" | 203m2Bi
 * colspan="3" style="text-indent:2em" | 2041.5(6) keV
 * 194(30) ns
 * 25/2+
 * 204Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 121
 * 203.977836(10)
 * 11.22(10) h
 * β+
 * 204Pb
 * 6+
 * style="text-indent:1em" | 204m1Bi
 * colspan="3" style="text-indent:2em" | 805.5(3) keV
 * 13.0(1) ms
 * IT
 * 204Bi
 * 10−
 * style="text-indent:1em" | 204m2Bi
 * colspan="3" style="text-indent:2em" | 2833.4(11) keV
 * 1.07(3) ms
 * (17+)
 * 205Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 122
 * 204.977385(5)
 * 15.31(4) d
 * β+
 * 205Pb
 * 9/2−
 * 206Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 123
 * 205.978499(8)
 * 6.243(3) d
 * β+
 * 206Pb
 * 6(+)
 * style="text-indent:1em" | 206m1Bi
 * colspan="3" style="text-indent:2em" | 59.897(17) keV
 * 7.7(2) μs
 * (4+)
 * style="text-indent:1em" | 206m2Bi
 * colspan="3" style="text-indent:2em" | 1044.8(5) keV
 * 890(10) μs
 * (10−)
 * 207Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 124
 * 206.9784706(26)
 * 32.9(14) y
 * β+
 * 207Pb
 * 9/2−
 * style="text-indent:1em" | 207mBi
 * colspan="3" style="text-indent:2em" | 2101.49(16) keV
 * 182(6) μs
 * 21/2+
 * 208Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 125
 * 207.9797421(25)
 * 3.68(4)×105 y
 * β+
 * 208Pb
 * (5)+
 * style="text-indent:1em" | 208mBi
 * colspan="3" style="text-indent:2em" | 1571.1(4) keV
 * 2.58(4) ms
 * IT
 * 208Bi
 * (10)−
 * 209Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 126
 * 208.9803986(15)
 * 2.01(8)×1019 y
 * α
 * 205Tl
 * 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|209.9841202(15)
 * rowspan=2|5.012(5) d
 * β−
 * 210Po
 * rowspan=2|1−
 * rowspan=2|Trace
 * α (1.32×10−4%)
 * 206Tl
 * style="text-indent:1em" | 210mBi
 * colspan="3" style="text-indent:2em" | 271.31(11) keV
 * 3.04(6)×106 y
 * α
 * 206Tl
 * 9−
 * rowspan=2|211Bi
 * rowspan=2|Actinium 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) min
 * α (99.72%)
 * 207Tl
 * rowspan=2|9/2−
 * rowspan=2|Trace
 * β− (.276%)
 * 211Po
 * style="text-indent:1em" | 211mBi
 * colspan="3" style="text-indent:2em" | 1257(10) keV
 * 1.4(3) μs
 * (25/2−)
 * rowspan=3|212Bi
 * rowspan=3|Thorium C
 * rowspan=3 style="text-align:right" | 83
 * rowspan=3 style="text-align:right" | 129
 * rowspan=3|211.991285(2)
 * rowspan=3|60.55(6) min
 * β− (64.05%)
 * 212Po
 * rowspan=3|1(−)
 * rowspan=3|Trace
 * α (35.94%)
 * 208Tl
 * β−, α (.014%)
 * 208Pb
 * rowspan=3 style="text-indent:1em" | 212m1Bi
 * rowspan=3|
 * rowspan=3 colspan="3" style="text-indent:2em" | 250(30) keV
 * rowspan=3|25.0(2) min
 * α (67%)
 * 208Tl
 * rowspan=3|(9−)
 * rowspan=3|
 * β− (33%)
 * 212mPo
 * β−, α (.3%)
 * 208Pb
 * style="text-indent:1em" | 212m2Bi
 * colspan="3" style="text-indent:2em" | 2200(200)# keV
 * 7.0(3) min
 * >16
 * rowspan=2|213Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 130
 * rowspan=2|212.994384(5)
 * rowspan=2|45.59(6) min
 * β− (97.91%)
 * 213Po
 * rowspan=2|9/2−
 * rowspan=2|Trace
 * 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|213.998711(12)
 * rowspan=3|19.9(4) min
 * β− (99.97%)
 * 214Po
 * rowspan=3|1−
 * rowspan=3|Trace
 * α (.021%)
 * 210Tl
 * β−, α (.003%)
 * 210Pb
 * 215Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 132
 * 215.001749(6)
 * 7.6(2) min
 * β−
 * 215Po
 * (9/2−)
 * Trace
 * rowspan=2 style="text-indent:1em" | 215mBi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 1347.5(25) keV
 * rowspan=2| 36.9(6) s
 * IT (76.9%)
 * 215Bi
 * rowspan=2| (25/2−)
 * rowspan=2|
 * β− (23.1%)
 * 215Po
 * 216Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 133
 * 216.006306(12)
 * 2.17(5) min
 * β−
 * 216Po
 * (6−, 7−)
 * style="text-indent:1em" | 216mBi
 * colspan="3" style="text-indent:2em" | 24(19) keV
 * 6.6(21) min
 * β−
 * 216Po
 * 3−#
 * 217Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 134
 * 217.009372(19)
 * 98.5(8) s
 * β−
 * 217Po
 * 9/2−#
 * style="text-indent:1em" | 217mBi
 * colspan="3" style="text-indent:2em" | 1480(40) keV
 * 2.70(6) μs
 * IT
 * 217Bi
 * 25/2−#
 * 218Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 135
 * 218.014188(29)
 * 33(1) s
 * β−
 * 218Po
 * (6−, 7−, 8−)
 * 219Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 136
 * 219.01752(22)#
 * 8.7(29) s
 * β−
 * 219Po
 * 9/2−#
 * 220Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 137
 * 220.02250(32)#
 * 9.5(57) s
 * β−
 * 220Po
 * 1−#
 * rowspan=2| 221Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 138
 * rowspan=2|221.02598(32)#
 * rowspan=2| 2# s
 * β−?
 * 221Po
 * rowspan=2| 9/2−#
 * rowspan=2|
 * β−, n?
 * 220Po
 * rowspan=2| 222Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 139
 * rowspan=2|222.03108(32)#
 * rowspan=2| 3# s
 * β−?
 * 222Po
 * rowspan=2| 1−#
 * rowspan=2|
 * β−, n?
 * 221Po
 * rowspan=2| 223Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 140
 * rowspan=2| 223.03461(43)#
 * rowspan=2| 1# s
 * β−?
 * 223Po
 * rowspan=2| 9/2−#
 * rowspan=2|
 * β−, n?
 * 222Po
 * rowspan=2| 224Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 141
 * rowspan=2|224.03980(43)#
 * rowspan=2| 1# s
 * β−?
 * 224Po
 * rowspan=2|1−#
 * rowspan=2|
 * β−, n?
 * 223Po
 * 182(6) μs
 * 21/2+
 * 208Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 125
 * 207.9797421(25)
 * 3.68(4)×105 y
 * β+
 * 208Pb
 * (5)+
 * style="text-indent:1em" | 208mBi
 * colspan="3" style="text-indent:2em" | 1571.1(4) keV
 * 2.58(4) ms
 * IT
 * 208Bi
 * (10)−
 * 209Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 126
 * 208.9803986(15)
 * 2.01(8)×1019 y
 * α
 * 205Tl
 * 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|209.9841202(15)
 * rowspan=2|5.012(5) d
 * β−
 * 210Po
 * rowspan=2|1−
 * rowspan=2|Trace
 * α (1.32×10−4%)
 * 206Tl
 * style="text-indent:1em" | 210mBi
 * colspan="3" style="text-indent:2em" | 271.31(11) keV
 * 3.04(6)×106 y
 * α
 * 206Tl
 * 9−
 * rowspan=2|211Bi
 * rowspan=2|Actinium 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) min
 * α (99.72%)
 * 207Tl
 * rowspan=2|9/2−
 * rowspan=2|Trace
 * β− (.276%)
 * 211Po
 * style="text-indent:1em" | 211mBi
 * colspan="3" style="text-indent:2em" | 1257(10) keV
 * 1.4(3) μs
 * (25/2−)
 * rowspan=3|212Bi
 * rowspan=3|Thorium C
 * rowspan=3 style="text-align:right" | 83
 * rowspan=3 style="text-align:right" | 129
 * rowspan=3|211.991285(2)
 * rowspan=3|60.55(6) min
 * β− (64.05%)
 * 212Po
 * rowspan=3|1(−)
 * rowspan=3|Trace
 * α (35.94%)
 * 208Tl
 * β−, α (.014%)
 * 208Pb
 * rowspan=3 style="text-indent:1em" | 212m1Bi
 * rowspan=3|
 * rowspan=3 colspan="3" style="text-indent:2em" | 250(30) keV
 * rowspan=3|25.0(2) min
 * α (67%)
 * 208Tl
 * rowspan=3|(9−)
 * rowspan=3|
 * β− (33%)
 * 212mPo
 * β−, α (.3%)
 * 208Pb
 * style="text-indent:1em" | 212m2Bi
 * colspan="3" style="text-indent:2em" | 2200(200)# keV
 * 7.0(3) min
 * >16
 * rowspan=2|213Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 130
 * rowspan=2|212.994384(5)
 * rowspan=2|45.59(6) min
 * β− (97.91%)
 * 213Po
 * rowspan=2|9/2−
 * rowspan=2|Trace
 * 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|213.998711(12)
 * rowspan=3|19.9(4) min
 * β− (99.97%)
 * 214Po
 * rowspan=3|1−
 * rowspan=3|Trace
 * α (.021%)
 * 210Tl
 * β−, α (.003%)
 * 210Pb
 * 215Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 132
 * 215.001749(6)
 * 7.6(2) min
 * β−
 * 215Po
 * (9/2−)
 * Trace
 * rowspan=2 style="text-indent:1em" | 215mBi
 * rowspan=2|
 * rowspan=2 colspan="3" style="text-indent:2em" | 1347.5(25) keV
 * rowspan=2| 36.9(6) s
 * IT (76.9%)
 * 215Bi
 * rowspan=2| (25/2−)
 * rowspan=2|
 * β− (23.1%)
 * 215Po
 * 216Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 133
 * 216.006306(12)
 * 2.17(5) min
 * β−
 * 216Po
 * (6−, 7−)
 * style="text-indent:1em" | 216mBi
 * colspan="3" style="text-indent:2em" | 24(19) keV
 * 6.6(21) min
 * β−
 * 216Po
 * 3−#
 * 217Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 134
 * 217.009372(19)
 * 98.5(8) s
 * β−
 * 217Po
 * 9/2−#
 * style="text-indent:1em" | 217mBi
 * colspan="3" style="text-indent:2em" | 1480(40) keV
 * 2.70(6) μs
 * IT
 * 217Bi
 * 25/2−#
 * 218Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 135
 * 218.014188(29)
 * 33(1) s
 * β−
 * 218Po
 * (6−, 7−, 8−)
 * 219Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 136
 * 219.01752(22)#
 * 8.7(29) s
 * β−
 * 219Po
 * 9/2−#
 * 220Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 137
 * 220.02250(32)#
 * 9.5(57) s
 * β−
 * 220Po
 * 1−#
 * rowspan=2| 221Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 138
 * rowspan=2|221.02598(32)#
 * rowspan=2| 2# s
 * β−?
 * 221Po
 * rowspan=2| 9/2−#
 * rowspan=2|
 * β−, n?
 * 220Po
 * rowspan=2| 222Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 139
 * rowspan=2|222.03108(32)#
 * rowspan=2| 3# s
 * β−?
 * 222Po
 * rowspan=2| 1−#
 * rowspan=2|
 * β−, n?
 * 221Po
 * rowspan=2| 223Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 140
 * rowspan=2| 223.03461(43)#
 * rowspan=2| 1# s
 * β−?
 * 223Po
 * rowspan=2| 9/2−#
 * rowspan=2|
 * β−, n?
 * 222Po
 * rowspan=2| 224Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 141
 * rowspan=2|224.03980(43)#
 * rowspan=2| 1# s
 * β−?
 * 224Po
 * rowspan=2|1−#
 * rowspan=2|
 * β−, n?
 * 223Po
 * 8.7(29) s
 * β−
 * 219Po
 * 9/2−#
 * 220Bi
 * style="text-align:right" | 83
 * style="text-align:right" | 137
 * 220.02250(32)#
 * 9.5(57) s
 * β−
 * 220Po
 * 1−#
 * rowspan=2| 221Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 138
 * rowspan=2|221.02598(32)#
 * rowspan=2| 2# s
 * β−?
 * 221Po
 * rowspan=2| 9/2−#
 * rowspan=2|
 * β−, n?
 * 220Po
 * rowspan=2| 222Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 139
 * rowspan=2|222.03108(32)#
 * rowspan=2| 3# s
 * β−?
 * 222Po
 * rowspan=2| 1−#
 * rowspan=2|
 * β−, n?
 * 221Po
 * rowspan=2| 223Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 140
 * rowspan=2| 223.03461(43)#
 * rowspan=2| 1# s
 * β−?
 * 223Po
 * rowspan=2| 9/2−#
 * rowspan=2|
 * β−, n?
 * 222Po
 * rowspan=2| 224Bi
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 141
 * rowspan=2|224.03980(43)#
 * rowspan=2| 1# s
 * β−?
 * 224Po
 * rowspan=2|1−#
 * rowspan=2|
 * β−, n?
 * 223Po
 * rowspan=2|
 * rowspan=2 style="text-align:right" | 83
 * rowspan=2 style="text-align:right" | 141
 * rowspan=2|224.03980(43)#
 * rowspan=2| 1# s
 * β−?
 * 224Po
 * rowspan=2|1−#
 * rowspan=2|
 * β−, n?
 * 223Po
 * 223Po

Bismuth-213
Bismuth-213 (213Bi) has a half-life of 45 minutes and decays via alpha emission. Commercially, bismuth-213 can be produced by bombarding radium with bremsstrahlung photons from a linear particle accelerator, which populates its progenitor actinium-225. In 1997, an antibody conjugate with 213Bi was used to treat patients with leukemia. This isotope has also been tried in targeted alpha therapy (TAT) program to treat a variety of cancers. Bismuth-213 is also found in the decay chain of uranium-233, which is the fuel bred by thorium reactors.