Isotopes of bismuth

<h2 id="list-of-isotopes">List of isotopes</h2>

<table><tbody><tr><th rowspan="2">Nuclide<a class="footnote-ref" id="fnref:1" href="#fn:1">1</a></th><th rowspan="2">Historicname</th><th rowspan="1"><a href="/facts/Atomic_number/bgAr581S">Z</a></th><th rowspan="1"><a href="/facts/Neutron_number/eNtwGnVL">N</a></th><th rowspan="1"><a href="/facts/Atomic_mass/J1FJY9MV">Isotopic mass</a> (<a href="/facts/Dalton_(unit)/IMATU3vf">Da</a>)<a class="footnote-ref" id="fnref:2" href="#fn:2">2</a><a class="footnote-ref" id="fnref:3" href="#fn:3">3</a><a class="footnote-ref" id="fnref:4" href="#fn:4">4</a></th><th rowspan="2"><a href="/facts/Half-life/kGVH8BAB">Half-life</a><a class="footnote-ref" id="fnref:5" href="#fn:5">5</a><a class="footnote-ref" id="fnref:6" href="#fn:6">6</a></th><th rowspan="2"><a href="/facts/Decay_mode/Ya6FVjt4">Decaymode</a><a class="footnote-ref" id="fnref:7" href="#fn:7">7</a><a class="footnote-ref" id="fnref:8" href="#fn:8">8</a></th><th rowspan="2"><a href="/facts/Decay_product/hT0obfLv">Daughterisotope</a><a class="footnote-ref" id="fnref:9" href="#fn:9">9</a></th><th rowspan="2"><a href="/facts/Spin_(particle_physics)/4Jvp7e8P">Spin</a> and<a href="/facts/Parity_(physics)/emSbJ4hD">parity</a><a class="footnote-ref" id="fnref:10" href="#fn:10">10</a><a class="footnote-ref" id="fnref:11" href="#fn:11">11</a><a class="footnote-ref" id="fnref:12" href="#fn:12">12</a></th><th rowspan="2"><a href="/facts/Natural_abundance/dGjaAwc9">Isotopicabundance</a></th></tr><tr><th colspan="3">Excitation energy<a class="footnote-ref" id="fnref:13" href="#fn:13">13</a></th></tr><tr><td>184Bi<a class="footnote-ref" id="fnref:14" href="#fn:14">14</a></td><td></td><td>83</td><td>101</td><td>184.00135(13)#</td><td>6.6(15) ms</td><td><a href="/facts/Alpha_decay/rCsHNIUE">α</a></td><td>180Tl</td><td>3+#</td><td></td></tr><tr><td>184mBi<a class="footnote-ref" id="fnref:15" href="#fn:15">15</a></td><td></td><td colspan="3">150(100)# keV</td><td>13(2) ms</td><td>α</td><td>180Tl</td><td>10−#</td><td></td></tr><tr><td rowspan="2">185Bi<a class="footnote-ref" id="fnref:16" href="#fn:16">16</a></td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">102</td><td rowspan="2">184.99760(9)#</td><td rowspan="2">2.8+2.3−1.0 μs</td><td><a href="/facts/Proton_emission/9zxVkBkp">p</a> (92%)</td><td>184Pb</td><td rowspan="2">(1/2+)</td><td rowspan="2"></td></tr><tr><td>α (8%)</td><td>181Tl</td></tr><tr><td>185mBi</td><td></td><td colspan="3">70(50)# keV</td><td>58(2) μs</td><td><a href="/facts/Isomeric_transition/L8DHcqnk">IT</a></td><td>185Bi</td><td>(7/2−, 9/2−)</td><td></td></tr><tr><td rowspan="3">186Bi</td><td rowspan="3"></td><td rowspan="3">83</td><td rowspan="3">103</td><td rowspan="3">185.996623(18)</td><td rowspan="3">14.8(7) ms</td><td>α (99.99%)</td><td>182Tl</td><td rowspan="3">(3+)</td><td rowspan="3"></td></tr><tr><td><a href="/facts/Beta_decay/vxTBlckp">β+</a> (?%)</td><td>186Pb</td></tr><tr><td>β+, <a href="/facts/Spontaneous_fission/0QuJoVKI">SF</a> (0.011%)</td><td>(various)</td></tr><tr><td rowspan="3">186mBi<a class="footnote-ref" id="fnref:17" href="#fn:17">17</a></td><td rowspan="3"></td><td rowspan="3" colspan="3">170(100)# keV</td><td rowspan="3">9.8(4) ms</td><td>α (99.99%)</td><td>182Tl</td><td rowspan="3">(10−)</td><td rowspan="3"></td></tr><tr><td>β+ (?%)</td><td>186Pb</td></tr><tr><td>β+, SF (0.011%)</td><td>(various)</td></tr><tr><td>187Bi</td><td></td><td>83</td><td>104</td><td>186.993147(11)</td><td>37(2) ms</td><td>α</td><td>183Tl</td><td>(9/2−)</td><td></td></tr><tr><td>187m1Bi</td><td></td><td colspan="3">108(8) keV</td><td>370(20) μs</td><td>α</td><td>183Tl</td><td>1/2+</td><td></td></tr><tr><td>187m2Bi</td><td></td><td colspan="3">252(3) keV</td><td>7(5) μs</td><td>IT</td><td>187Bi</td><td>(13/2+)</td><td></td></tr><tr><td rowspan="2">188Bi</td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">105</td><td rowspan="2">187.992276(12)</td><td rowspan="2">60(3) ms</td><td>α</td><td>184Tl</td><td rowspan="2">(3+)</td><td rowspan="2"></td></tr><tr><td>β+, SF (0.0014%)</td><td>(various)</td></tr><tr><td>188m1Bi</td><td></td><td colspan="3">66(30) keV</td><td>>5 μs</td><td></td><td></td><td>7+#</td><td></td></tr><tr><td rowspan="2">188m2Bi</td><td rowspan="2"></td><td rowspan="2" colspan="3">153(30) keV</td><td rowspan="2">265(15) ms</td><td>α</td><td>184Tl</td><td rowspan="2">(10−)</td><td rowspan="2"></td></tr><tr><td>β+, SF (0.0046%)</td><td>(various)</td></tr><tr><td>189Bi</td><td></td><td>83</td><td>106</td><td>188.989195(22)</td><td>688(5) ms</td><td>α</td><td>185Tl</td><td>9/2−</td><td></td></tr><tr><td rowspan="2">189m1Bi</td><td rowspan="2"></td><td rowspan="2" colspan="3">184(5) keV</td><td rowspan="2">5.0(1) ms</td><td>α (83%)</td><td>185Tl</td><td rowspan="2">1/2+</td><td rowspan="2"></td></tr><tr><td>IT (17%)</td><td>189Bi</td></tr><tr><td>189m2Bi</td><td></td><td colspan="3">357.6(5) keV</td><td>880(50) ns</td><td>IT</td><td>189Bi</td><td>13/2+</td><td></td></tr><tr><td rowspan="3">190Bi</td><td rowspan="3"></td><td rowspan="3">83</td><td rowspan="3">107</td><td rowspan="3">189.988625(23)</td><td rowspan="3">6.3(1) s</td><td>α (77%)</td><td>186Tl</td><td rowspan="3">(3+)</td><td rowspan="3"></td></tr><tr><td>β+ (23%)</td><td>190Pb</td></tr><tr><td>β+, SF (6×10−6%)</td><td>(various)</td></tr><tr><td rowspan="3">190m1Bi</td><td rowspan="3"></td><td rowspan="3" colspan="3">120(40) keV</td><td rowspan="3">6.2(1) s</td><td>α (70%)</td><td>186Tl</td><td rowspan="3">10−</td><td rowspan="3"></td></tr><tr><td>β+ (30%)</td><td>190Pb</td></tr><tr><td>β+, SF (4×10−6%)</td><td>(various)</td></tr><tr><td>190m2Bi</td><td></td><td colspan="3">121(15) keV</td><td>175(8) ns</td><td>IT</td><td>190Bi</td><td>(5−)</td><td></td></tr><tr><td>190m3Bi</td><td></td><td colspan="3">394(40) keV</td><td>1.3(8) μs</td><td>IT</td><td>190Bi</td><td>(8−)</td><td></td></tr><tr><td rowspan="2">191Bi</td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">108</td><td rowspan="2">190.985787(8)</td><td rowspan="2">12.4(3) s</td><td>α (51%)</td><td>187Tl</td><td rowspan="2">9/2−</td><td rowspan="2"></td></tr><tr><td>β+ (49%)</td><td>191Pb</td></tr><tr><td rowspan="3">191m1Bi</td><td rowspan="3"></td><td rowspan="3" colspan="3">242(4) keV</td><td rowspan="3">125(8) ms</td><td>α (68%)</td><td>187Tl</td><td rowspan="3">1/2+</td><td rowspan="3"></td></tr><tr><td>IT (?%)</td><td>191Bi</td></tr><tr><td>β+ (?%)</td><td>191Pb</td></tr><tr><td>191m2Bi</td><td></td><td colspan="3">429.7(5) keV</td><td>562(10) ns</td><td>IT</td><td>191Bi</td><td>13/2+</td><td></td></tr><tr><td>191m3Bi</td><td></td><td colspan="3">1875(25)# keV</td><td>400(40) ns</td><td>IT</td><td>191Bi</td><td>25/2-#</td><td></td></tr><tr><td rowspan="2">192Bi</td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">109</td><td rowspan="2">191.98547(3)</td><td rowspan="2">34.6(9) s</td><td>β+ (88%)</td><td>192Pb</td><td rowspan="2">(3+)</td><td rowspan="2"></td></tr><tr><td>α (12%)</td><td>188Tl</td></tr><tr><td rowspan="2">192mBi</td><td rowspan="2"></td><td rowspan="2" colspan="3">140(30) keV</td><td rowspan="2">39.6(4) s</td><td>β+ (90%)</td><td>192Pb</td><td rowspan="2">10−</td><td rowspan="2"></td></tr><tr><td>α (10%)</td><td>188Tl</td></tr><tr><td rowspan="2">193Bi</td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">110</td><td rowspan="2">192.982947(8)</td><td rowspan="2">63.6(30) s</td><td>β+ (96.5%)</td><td>193Pb</td><td rowspan="2">9/2−</td><td rowspan="2"></td></tr><tr><td>α (3.5%)</td><td>189Tl</td></tr><tr><td rowspan="2">193m1Bi</td><td rowspan="2"></td><td rowspan="2" colspan="3">305(6) keV</td><td rowspan="2">3.20(14) s</td><td>α (84%)</td><td>189Tl</td><td rowspan="2">1/2+</td><td rowspan="2"></td></tr><tr><td>β+ (16%)</td><td>193Pb</td></tr><tr><td>193m2Bi</td><td></td><td colspan="3">605.53(18) keV</td><td>153(10) ns</td><td>IT</td><td>193Bi</td><td>13/2+</td><td></td></tr><tr><td>193m3Bi</td><td></td><td colspan="3">2349.6(6) keV</td><td>85(3) μs</td><td>IT</td><td>193Bi</td><td>29/2+</td><td></td></tr><tr><td>193m4Bi</td><td></td><td colspan="3">2405.1(7) keV</td><td>3.02(8) μs</td><td>IT</td><td>193Bi</td><td>(29/2−)</td><td></td></tr><tr><td rowspan="2">194Bi</td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">111</td><td rowspan="2">193.982799(6)</td><td rowspan="2">95(3) s</td><td>β+ (99.54%)</td><td>194Pb</td><td rowspan="2">3+</td><td rowspan="2"></td></tr><tr><td>α (0.46%)</td><td>190Tl</td></tr><tr><td>194m1Bi</td><td></td><td colspan="3">150(50) keV</td><td>125(2) s</td><td>β+</td><td>194Pb</td><td>(6+, 7+)</td><td></td></tr><tr><td rowspan="2">194m2Bi</td><td rowspan="2"></td><td rowspan="2" colspan="3">163(4) keV</td><td rowspan="2">115(4) s</td><td>β+ (99.80%)</td><td>194Pb</td><td rowspan="2">(10−)</td><td rowspan="2"></td></tr><tr><td>α (0.20%)</td><td>190Tl</td></tr><tr><td rowspan="2">195Bi</td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">112</td><td rowspan="2">194.980649(6)</td><td rowspan="2">183(4) s</td><td>β+ (99.97%)</td><td>195Pb</td><td rowspan="2">9/2−</td><td rowspan="2"></td></tr><tr><td>α (0.030%)</td><td>191Tl</td></tr><tr><td rowspan="2">195m1Bi</td><td rowspan="2"></td><td rowspan="2" colspan="3">399(6) keV</td><td rowspan="2">87(1) s</td><td>β+ (67%)</td><td>195Pb</td><td rowspan="2">1/2+</td><td rowspan="2"></td></tr><tr><td>α (33%)</td><td>191Tl</td></tr><tr><td>195m2Bi</td><td></td><td colspan="3">2381.0(5) keV</td><td>614(5) ns</td><td>IT</td><td>195Bi</td><td>(29/2−)</td><td></td></tr><tr><td>195m3Bi</td><td></td><td colspan="3">2615.9(5) keV</td><td>1.49(1) μs</td><td>IT</td><td>195Bi</td><td>29/2+</td><td></td></tr><tr><td rowspan="2">196Bi</td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">113</td><td rowspan="2">195.980667(26)</td><td rowspan="2">5.13(20) min</td><td>β+</td><td>196Pb</td><td rowspan="2">(3+)</td><td rowspan="2"></td></tr><tr><td>α (0.00115%)</td><td>192Tl</td></tr><tr><td>196m1Bi</td><td></td><td colspan="3">166.4(29) keV</td><td>0.6(5) s</td><td>IT</td><td>196Bi</td><td>(7+)</td><td></td></tr><tr><td rowspan="3">196m2Bi</td><td rowspan="3"></td><td rowspan="3" colspan="3">272(3) keV</td><td rowspan="3">4.00(5) min</td><td>β+ (74.2%)</td><td>196Pb</td><td rowspan="3">(10−)</td><td rowspan="3"></td></tr><tr><td>IT (25.8%)</td><td>196Bi</td></tr><tr><td>α (3.8×10−4%)</td><td>196Bi</td></tr><tr><td>197Bi</td><td></td><td>83</td><td>114</td><td>196.978865(9)</td><td>9.33(50) min</td><td>β+</td><td>197Pb</td><td>9/2−</td><td></td></tr><tr><td rowspan="2">197m1Bi</td><td rowspan="2"></td><td rowspan="2" colspan="3">533(12) keV</td><td rowspan="2">5.04(16) min</td><td>α (55%)</td><td>193Tl</td><td rowspan="2">1/2+</td><td rowspan="2"></td></tr><tr><td>β+ (45%)</td><td>197Pb</td></tr><tr><td>197m2Bi</td><td></td><td colspan="3">2403(12) keV</td><td>263(13) ns</td><td>IT</td><td>197Bi</td><td>(29/2−)</td><td></td></tr><tr><td>197m3Bi</td><td></td><td colspan="3">2929.5(5) keV</td><td>209(30) ns</td><td>IT</td><td>197Bi</td><td>(31/2−)</td><td></td></tr><tr><td>198Bi</td><td></td><td>83</td><td>115</td><td>197.979201(30)</td><td>10.3(3) min</td><td>β+</td><td>198Pb</td><td>3+</td><td></td></tr><tr><td>198m1Bi</td><td></td><td colspan="3">290(40) keV</td><td>11.6(3) min</td><td>β+</td><td>198Pb</td><td>7+</td><td></td></tr><tr><td>198m2Bi</td><td></td><td colspan="3">540(40) keV</td><td>7.7(5) s</td><td>IT</td><td>198Bi</td><td>10−</td><td></td></tr><tr><td>199Bi</td><td></td><td>83</td><td>116</td><td>198.977673(11)</td><td>27(1) min</td><td>β+</td><td>199Pb</td><td>9/2−</td><td></td></tr><tr><td rowspan="3">199m1Bi</td><td rowspan="3"></td><td rowspan="3" colspan="3">667(3) keV</td><td rowspan="3">24.70(15) min</td><td>β+ (>98%)</td><td>199Pb</td><td rowspan="3">(1/2+)</td><td rowspan="3"></td></tr><tr><td>IT (<2%)</td><td>199Bi</td></tr><tr><td>α (0.01%)</td><td>195Tl</td></tr><tr><td>199m2Bi</td><td></td><td colspan="3">1962(23) keV</td><td>0.10(3) μs</td><td>IT</td><td>199Bi</td><td>25/2+#</td><td></td></tr><tr><td>199m3Bi</td><td></td><td colspan="3">2548(23) keV</td><td>168(13) ns</td><td>IT</td><td>199Bi</td><td>29/2−#</td><td></td></tr><tr><td>200Bi</td><td></td><td>83</td><td>117</td><td>199.978131(24)</td><td>36.4(5) min</td><td>β+</td><td>200Pb</td><td>7+</td><td></td></tr><tr><td rowspan="2">200m1Bi<a class="footnote-ref" id="fnref:18" href="#fn:18">18</a></td><td rowspan="2"></td><td rowspan="2" colspan="3">100(70)# keV</td><td rowspan="2">31(2) min</td><td>β+ (?%)</td><td>200Pb</td><td rowspan="2">(2+)</td><td rowspan="2"></td></tr><tr><td>IT (?%)</td><td>200Bi</td></tr><tr><td>200m2Bi</td><td></td><td colspan="3">428.20(10) keV</td><td>400(50) ms</td><td>IT</td><td>200Bi</td><td>(10−)</td><td></td></tr><tr><td>201Bi</td><td></td><td>83</td><td>118</td><td>200.976995(13)</td><td>103(3) min</td><td>β+</td><td>201Pb</td><td>9/2−</td><td></td></tr><tr><td rowspan="2">201m1Bi</td><td rowspan="2"></td><td rowspan="2" colspan="3">846.35(18) keV</td><td rowspan="2">57.5(21) min</td><td>β+</td><td>201Pb</td><td rowspan="2">1/2+</td><td rowspan="2"></td></tr><tr><td>α (?%)</td><td>197Tl</td></tr><tr><td>201m2Bi</td><td></td><td colspan="3">1973(23) keV</td><td>118(28) ns</td><td>IT</td><td>201Bi</td><td>25/2+#</td><td></td></tr><tr><td>201m3Bi</td><td></td><td colspan="3">2012(23) keV</td><td>105(75) ns</td><td>IT</td><td>201Bi</td><td>27/2+#</td><td></td></tr><tr><td>201m4Bi</td><td></td><td colspan="3">2781(23) keV</td><td>124(4) ns</td><td>IT</td><td>201Bi</td><td>29/2−#</td><td></td></tr><tr><td rowspan="2">202Bi</td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">119</td><td rowspan="2">201.977723(15)</td><td rowspan="2">1.72(5) h</td><td>β+</td><td>202Pb</td><td rowspan="2">5+</td><td rowspan="2"></td></tr><tr><td>α (<10−5%)</td><td>198Tl</td></tr><tr><td>202m1Bi</td><td></td><td colspan="3">625(12) keV</td><td>3.04(6) μs</td><td>IT</td><td>202Bi</td><td>10−#</td><td></td></tr><tr><td>202m2Bi</td><td></td><td colspan="3">2617(12) keV</td><td>310(50) ns</td><td>IT</td><td>202Bi</td><td>(17+)</td><td></td></tr><tr><td>203Bi</td><td></td><td>83</td><td>120</td><td>202.976892(14)</td><td>11.76(5) h</td><td>β+</td><td>203Pb</td><td>9/2−</td><td></td></tr><tr><td>203m1Bi</td><td></td><td colspan="3">1098.21(9) keV</td><td>305(5) ms</td><td>IT</td><td>203Bi</td><td>1/2+</td><td></td></tr><tr><td>203m2Bi</td><td></td><td colspan="3">2041.5(6) keV</td><td>194(30) ns</td><td>IT</td><td>203Bi</td><td>25/2+</td><td></td></tr><tr><td>204Bi</td><td></td><td>83</td><td>121</td><td>203.977836(10)</td><td>11.22(10) h</td><td>β+</td><td>204Pb</td><td>6+</td><td></td></tr><tr><td>204m1Bi</td><td></td><td colspan="3">805.5(3) keV</td><td>13.0(1) ms</td><td>IT</td><td>204Bi</td><td>10−</td><td></td></tr><tr><td>204m2Bi</td><td></td><td colspan="3">2833.4(11) keV</td><td>1.07(3) ms</td><td>IT</td><td>204Bi</td><td>17+</td><td></td></tr><tr><td>205Bi</td><td></td><td>83</td><td>122</td><td>204.977385(5)</td><td>14.91(7) d</td><td>β+</td><td>205Pb</td><td>9/2−</td><td></td></tr><tr><td>205m1Bi</td><td></td><td colspan="3">1497.17(9) keV</td><td>7.9(7) μs</td><td>IT</td><td>205Bi</td><td>1/2+</td><td></td></tr><tr><td>205m2Bi</td><td></td><td colspan="3">2064.7(4) keV</td><td>100(6) ns</td><td>IT</td><td>205Bi</td><td>21/2+</td><td></td></tr><tr><td>205m3Bi</td><td></td><td colspan="3">2139.0(7) keV</td><td>220(25) ns</td><td>IT</td><td>205Bi</td><td>25/2+</td><td></td></tr><tr><td>206Bi</td><td></td><td>83</td><td>123</td><td>205.978499(8)</td><td>6.243(3) d</td><td>β+</td><td>206Pb</td><td>6+</td><td></td></tr><tr><td>206m1Bi</td><td></td><td colspan="3">59.897(17) keV</td><td>7.7(2) μs</td><td>IT</td><td>206Bi</td><td>4+</td><td></td></tr><tr><td>206m2Bi</td><td></td><td colspan="3">1044.8(7) keV</td><td>890(10) μs</td><td>IT</td><td>206Bi</td><td>10−</td><td></td></tr><tr><td>206m3Bi</td><td></td><td colspan="3">9233.3(8) keV</td><td>155(15) ns</td><td>IT</td><td>206Bi</td><td>(28−)</td><td></td></tr><tr><td>206m4Bi</td><td></td><td colspan="3">10170.5(8) keV</td><td>>2 μs</td><td>IT</td><td>206Bi</td><td>(31+)</td><td></td></tr><tr><td>207Bi</td><td></td><td>83</td><td>124</td><td>206.9784706(26)</td><td>31.22(17) y</td><td>β+</td><td>207Pb</td><td>9/2−</td><td></td></tr><tr><td>207mBi</td><td></td><td colspan="3">2101.61(16) keV</td><td>182(6) μs</td><td>IT</td><td>207Bi</td><td>21/2+</td><td></td></tr><tr><td>208Bi</td><td></td><td>83</td><td>125</td><td>207.9797421(25)</td><td>3.68(4)×105 y</td><td>β+</td><td>208Pb</td><td>5+</td><td></td></tr><tr><td>208mBi</td><td></td><td colspan="3">1571.1(4) keV</td><td>2.58(4) ms</td><td>IT</td><td>208Bi</td><td>10−</td><td></td></tr><tr><td><a href="/facts/Bismuth-209/Bxu7JrUs">209Bi</a><a class="footnote-ref" id="fnref:19" href="#fn:19">19</a><a class="footnote-ref" id="fnref:20" href="#fn:20">20</a></td><td></td><td>83</td><td>126</td><td>208.9803986(15)</td><td>2.01(8)×1019 y<a class="footnote-ref" id="fnref:21" href="#fn:21">21</a></td><td>α</td><td>205Tl</td><td>9/2−</td><td>1.0000</td></tr><tr><td rowspan="2">210Bi</td><td rowspan="2">Radium E</td><td rowspan="2">83</td><td rowspan="2">127</td><td rowspan="2">209.9841202(15)</td><td rowspan="2">5.012(5) d</td><td>β−</td><td>210Po</td><td rowspan="2">1−</td><td rowspan="2">Trace<a class="footnote-ref" id="fnref:22" href="#fn:22">22</a></td></tr><tr><td>α (1.32×10−4%)</td><td>206Tl</td></tr><tr><td>210mBi</td><td></td><td colspan="3">271.31(11) keV</td><td>3.04(6)×106 y</td><td>α</td><td>206Tl</td><td>9−</td><td></td></tr><tr><td rowspan="2">211Bi</td><td rowspan="2">Actinium C</td><td rowspan="2">83</td><td rowspan="2">128</td><td rowspan="2">210.987269(6)</td><td rowspan="2">2.14(2) min</td><td>α (99.72%)</td><td>207Tl</td><td rowspan="2">9/2−</td><td rowspan="2">Trace<a class="footnote-ref" id="fnref:23" href="#fn:23">23</a></td></tr><tr><td>β− (0.276%)</td><td>211Po</td></tr><tr><td>211mBi</td><td></td><td colspan="3">1257(10) keV</td><td>1.4(3) μs</td><td>IT</td><td>211Bi</td><td>(25/2−)</td><td></td></tr><tr><td rowspan="3">212Bi</td><td rowspan="3">Thorium C</td><td rowspan="3">83</td><td rowspan="3">129</td><td rowspan="3">211.991285(2)</td><td rowspan="3">60.55(6) min</td><td>β− (64.05%)</td><td>212Po</td><td rowspan="3">1−</td><td rowspan="3">Trace<a class="footnote-ref" id="fnref:24" href="#fn:24">24</a></td></tr><tr><td>α (35.94%)</td><td>208Tl</td></tr><tr><td>β−, α (0.014%)</td><td>208Pb</td></tr><tr><td rowspan="3">212m1Bi</td><td rowspan="3"></td><td rowspan="3" colspan="3">250(30) keV</td><td rowspan="3">25.0(2) min</td><td>α (67%)</td><td>208Tl</td><td rowspan="3">(8−, 9−)</td><td rowspan="3"></td></tr><tr><td>β−, α (30%)</td><td>208Pb</td></tr><tr><td>β− (3%)</td><td>212Po</td></tr><tr><td>212m2Bi</td><td></td><td colspan="3">1479(30) keV</td><td>7.0(3) min</td><td>β−</td><td>212Po</td><td>(18−)</td><td></td></tr><tr><td rowspan="2">213Bi<a class="footnote-ref" id="fnref:25" href="#fn:25">25</a><a class="footnote-ref" id="fnref:26" href="#fn:26">26</a></td><td rowspan="2"></td><td rowspan="2">83</td><td rowspan="2">130</td><td rowspan="2">212.994384(5)</td><td rowspan="2">45.60(4) min</td><td>β− (97.91%)</td><td>213Po</td><td rowspan="2">9/2−</td><td rowspan="2">Trace<a class="footnote-ref" id="fnref:27" href="#fn:27">27</a></td></tr><tr><td>α (2.09%)</td><td>209Tl</td></tr><tr><td>213mBi</td><td></td><td colspan="3">1353(21) keV</td><td>>168 s</td><td></td><td></td><td>25/2−#</td><td></td></tr><tr><td rowspan="3">214Bi</td><td rowspan="3">Radium C</td><td rowspan="3">83</td><td rowspan="3">131</td><td rowspan="3">213.998711(12)</td><td rowspan="3">19.9(4) min</td><td>β− (99.98%)</td><td>214Po</td><td rowspan="3">1−</td><td rowspan="3">Trace<a class="footnote-ref" id="fnref:28" href="#fn:28">28</a></td></tr><tr><td>α (0.021%)</td><td>210Tl</td></tr><tr><td>β−, α (0.003%)</td><td>210Pb</td></tr><tr><td>214mBi</td><td></td><td colspan="3">539(30) keV</td><td>>93 s</td><td></td><td></td><td>8−#</td><td></td></tr><tr><td>215Bi</td><td></td><td>83</td><td>132</td><td>215.001749(6)</td><td>7.62(13) min</td><td>β−</td><td>215Po</td><td>(9/2−)</td><td>Trace<a class="footnote-ref" id="fnref:29" href="#fn:29">29</a></td></tr><tr><td rowspan="2">215mBi</td><td rowspan="2"></td><td rowspan="2" colspan="3">1367(20)# keV</td><td rowspan="2">36.9(6) s</td><td>IT (76.9%)</td><td>215Bi</td><td rowspan="2">(25/2−)</td><td rowspan="2"></td></tr><tr><td>β− (23.1%)</td><td>215Po</td></tr><tr><td>216Bi</td><td></td><td>83</td><td>133</td><td>216.006306(12)</td><td>2.21(4) min</td><td>β−</td><td>216Po</td><td>(6−, 7−)</td><td></td></tr><tr><td>216mBi<a class="footnote-ref" id="fnref:30" href="#fn:30">30</a></td><td></td><td colspan="3">24(19) keV</td><td>6.6(21) min</td><td>β−</td><td>216Po</td><td>3−#</td><td></td></tr><tr><td>217Bi</td><td></td><td>83</td><td>134</td><td>217.009372(19)</td><td>98.5(13) s</td><td>β−</td><td>217Po</td><td>9/2−#</td><td></td></tr><tr><td>217mBi</td><td></td><td colspan="3">1491(20) keV</td><td>3.0(2) μs</td><td>IT</td><td>217Bi</td><td>25/2−#</td><td></td></tr><tr><td>218Bi</td><td></td><td>83</td><td>135</td><td>218.014188(29)</td><td>33(1) s</td><td>β−</td><td>218Po</td><td>8−#</td><td></td></tr><tr><td>219Bi</td><td></td><td>83</td><td>136</td><td>219.01752(22)#</td><td>8.7(29) s</td><td>β−</td><td>219Po</td><td>9/2−#</td><td></td></tr><tr><td>220Bi</td><td></td><td>83</td><td>137</td><td>220.02250(32)#</td><td>9.5(57) s</td><td>β−</td><td>220Po</td><td>1−#</td><td></td></tr><tr><td>221Bi</td><td></td><td>83</td><td>138</td><td>221.02598(32)#</td><td>2# s[>300 ns]</td><td></td><td></td><td>9/2−#</td><td></td></tr><tr><td>222Bi</td><td></td><td>83</td><td>139</td><td>222.03108(32)#</td><td>3# s[>300 ns]</td><td></td><td></td><td>1−#</td><td></td></tr><tr><td>223Bi</td><td></td><td>83</td><td>140</td><td>223.03461(43)#</td><td>1# s[>300 ns]</td><td></td><td></td><td>9/2−#</td><td></td></tr><tr><td>224Bi</td><td></td><td>83</td><td>141</td><td>224.03980(43)#</td><td>1# s[>300 ns]</td><td></td><td></td><td>1−#</td><td></td></tr><tr><th colspan="20">This table header & footer: <ul><li>view</li></ul></th></tr></tbody></table>

<h2 id="bismuth-213">Bismuth-213</h2>
Bismuth-213 (213Bi) has a half-life of 45 minutes and decays via <a href="/facts/Alpha_emission/rCsHNIUE">alpha emission</a>. Commercially, bismuth-213 can be produced by bombarding <a href="/facts/Radium/VWo5gkzn">radium</a> with <a href="/facts/Bremsstrahlung/XafQtbx6">bremsstrahlung</a> photons from a <a href="/facts/Linear_particle_accelerator/GIz6Uc4x">linear particle accelerator</a>, which populates its progenitor <a href="/facts/Actinium-225/2fBD0uCw">actinium-225</a>. In 1997, an antibody conjugate with 213Bi was used to treat patients with leukemia. This isotope has also been tried in <a href="/facts/Targeted_alpha-particle_therapy/steG07FI">targeted alpha therapy</a> (TAT) program to treat a variety of cancers.<a class="footnote-ref" id="fnref:31" href="#fn:31">31</a> Bismuth-213 is also found in the decay chain of <a href="/facts/Uranium-233/a6sMrk07">uranium-233</a>, which is the fuel bred by <a href="/facts/Thorium_reactor/mohxxkx3">thorium reactors</a>.

<ul><li>Isotopic compositions and standard atomic masses from:
<ul><li><a href="/facts/John_Robert_de_Laeter/jYQj55GI">de Laeter, John Robert</a>; Böhlke, John Karl; De Bièvre, Paul; Hidaka, Hiroshi; Peiser, H. Steffen; Rosman, Kevin J. R.; Taylor, Philip D. P. (2003). <a href="https://doi.org/10.1351%2Fpac200375060683">"Atomic weights of the elements. Review 2000 (IUPAC Technical Report)"</a>. <a href="/facts/Pure_and_Applied_Chemistry/9QdCDKxf">Pure and Applied Chemistry</a>. 75 (6): 683–800. <a href="/facts/Doi_(identifier)/muM9Etpq">doi</a>:<a href="https://doi.org/10.1351%2Fpac200375060683">10.1351/pac200375060683</a>.</li>
<li>Wieser, Michael E. (2006). <a href="https://doi.org/10.1351%2Fpac200678112051">"Atomic weights of the elements 2005 (IUPAC Technical Report)"</a>. <a href="/facts/Pure_and_Applied_Chemistry/9QdCDKxf">Pure and Applied Chemistry</a>. 78 (11): 2051–2066. <a href="/facts/Doi_(identifier)/muM9Etpq">doi</a>:<a href="https://doi.org/10.1351%2Fpac200678112051">10.1351/pac200678112051</a>.</li></ul></li>
<li><a href="http://old.iupac.org/news/archives/2005/atomic-weights_revised05.html">"News & Notices: Standard Atomic Weights Revised"</a>. International Union of Pure and Applied Chemistry. 19 October 2005.</li>
<li>Half-life, spin, and isomer data selected from the following sources.
<ul><li>Audi, Georges; Bersillon, Olivier; Blachot, Jean; <a href="/facts/Aaldert_Wapstra/9Ylvt18s">Wapstra, Aaldert Hendrik</a> (2003), <a href="https://hal.archives-ouvertes.fr/in2p3-00020241/document">"The NUBASE evaluation of nuclear and decay properties"</a>, Nuclear Physics A, 729: 3–128, <a href="/facts/Bibcode_(identifier)/9HtdQSGB">Bibcode</a>:<a href="https://ui.adsabs.harvard.edu/abs/2003NuPhA.729....3A">2003NuPhA.729....3A</a>, <a href="/facts/Doi_(identifier)/muM9Etpq">doi</a>:<a href="https://doi.org/10.1016%2Fj.nuclphysa.2003.11.001">10.1016/j.nuclphysa.2003.11.001</a></li>
<li><a href="/facts/National_Nuclear_Data_Center/SgVzvxLk">National Nuclear Data Center</a>. <a href="http://www.nndc.bnl.gov/nudat2/">"NuDat 2.x database"</a>. <a href="/facts/Brookhaven_National_Laboratory/L2JrG0K1">Brookhaven National Laboratory</a>.</li>
<li>Holden, Norman E. (2004). "11. Table of the Isotopes". In Lide, David R. (ed.). <a href="/facts/CRC_Handbook_of_Chemistry_and_Physics/qjxzC2Cu">CRC Handbook of Chemistry and Physics</a> (85th ed.). <a href="/facts/Boca_Raton,_Florida/9gcNen3S">Boca Raton, Florida</a>: <a href="/facts/CRC_Press/duTuH4hz">CRC Press</a>. <a href="/facts/ISBN_(identifier)/15AdSPa9">ISBN</a> 978-0-8493-0485-9.</li></ul></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1">mBi – Excited nuclear isomer. <a href="/wiki/Nuclear_isomer" target="_blank">/wiki/Nuclear_isomer</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></li>
<li id="fn:2">Wang, Meng; Huang, W.J.; Kondev, F.G.; Audi, G.; Naimi, S. (2021). "The AME 2020 atomic mass evaluation (II). Tables, graphs and references*". Chinese Physics C. 45 (3): 030003. doi:10.1088/1674-1137/abddaf. <a href="/wiki/Doi_(identifier)" target="_blank">/wiki/Doi_(identifier)</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></li>
<li id="fn:3">( ) – Uncertainty (1σ) is given in concise form in parentheses after the corresponding last digits. <a href="#fnref:3" class="footnote-back-ref">↩</a></li>
<li id="fn:4"># – Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS). <a href="#fnref:4" class="footnote-back-ref">↩</a></li>
<li id="fn:5">Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
 <a href="https://www-nds.iaea.org/amdc/ame2020/NUBASE2020.pdf" target="_blank">https://www-nds.iaea.org/amdc/ame2020/NUBASE2020.pdf</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></li>
<li id="fn:6">Bold half-life – nearly stable, half-life longer than age of universe. <a href="/wiki/Age_of_universe" target="_blank">/wiki/Age_of_universe</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></li>
<li id="fn:7">Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
 <a href="https://www-nds.iaea.org/amdc/ame2020/NUBASE2020.pdf" target="_blank">https://www-nds.iaea.org/amdc/ame2020/NUBASE2020.pdf</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></li>
<li id="fn:8">Modes of decay:
EC:Electron captureIT:Isomeric transitionp:Proton emission <a href="/wiki/Electron_capture" target="_blank">/wiki/Electron_capture</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></li>
<li id="fn:9">Bold symbol as daughter – Daughter product is stable. <a href="#fnref:9" class="footnote-back-ref">↩</a></li>
<li id="fn:10">Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
 <a href="https://www-nds.iaea.org/amdc/ame2020/NUBASE2020.pdf" target="_blank">https://www-nds.iaea.org/amdc/ame2020/NUBASE2020.pdf</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></li>
<li id="fn:11">( ) spin value – Indicates spin with weak assignment arguments. <a href="#fnref:11" class="footnote-back-ref">↩</a></li>
<li id="fn:12"># – Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN). <a href="#fnref:12" class="footnote-back-ref">↩</a></li>
<li id="fn:13"># – Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN). <a href="#fnref:13" class="footnote-back-ref">↩</a></li>
<li id="fn:14">Andreyev, A. N.; Ackermann, D.; Heßberger, F. P.; Hofmann, S.; Huyse, M.; Kojouharov, I.; Kindler, B.; Lommel, B.; Münzenberg, G.; Page, R. D.; Vel, K. Van de; Duppen, P. Van; Heyde, K. (1 October 2003). "α-decay spectroscopy of light odd-odd Bi isotopes - II: 186Bi and the new nuclide 184Bi" (PDF). The European Physical Journal A. 18 (1): 55–64. Bibcode:2003EPJA...18...55A. doi:10.1140/epja/i2003-10051-1. ISSN 1434-601X. S2CID 122369569. Retrieved 20 June 2023. <a href="https://link.springer.com/content/pdf/10.1140/epja/i2003-10051-1.pdf" target="_blank">https://link.springer.com/content/pdf/10.1140/epja/i2003-10051-1.pdf</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></li>
<li id="fn:15">Order of ground state and isomer is uncertain. <a href="#fnref:15" class="footnote-back-ref">↩</a></li>
<li id="fn:16">Doherty, D. T.; Andreyev, A. N.; Seweryniak, D.; Woods, P. J.; Carpenter, M. P.; Auranen, K.; Ayangeakaa, A. D.; Back, B. B.; Bottoni, S.; Canete, L.; Cubiss, J. G.; Harker, J.; Haylett, T.; Huang, T.; Janssens, R. V. F.; Jenkins, D. G.; Kondev, F. G.; Lauritsen, T.; Lederer-Woods, C.; Li, J.; Müller-Gatermann, C.; Potterveld, D.; Reviol, W.; Savard, G.; Stolze, S.; Zhu, S. (12 November 2021). "Solving the Puzzles of the Decay of the Heaviest Known Proton-Emitting Nucleus 185Bi". Physical Review Letters. 127 (20): 202501. Bibcode:2021PhRvL.127t2501D. doi:10.1103/PhysRevLett.127.202501. hdl:20.500.11820/ac1e5604-7bba-4a25-a538-795ca4bdc875. ISSN 0031-9007. PMID 34860042. S2CID 244089059. Retrieved 20 June 2023. <a href="https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.127.202501" target="_blank">https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.127.202501</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></li>
<li id="fn:17">Order of ground state and isomer is uncertain. <a href="#fnref:17" class="footnote-back-ref">↩</a></li>
<li id="fn:18">Order of ground state and isomer is uncertain. <a href="#fnref:18" class="footnote-back-ref">↩</a></li>
<li id="fn:19">Formerly believed to be final decay product of 4n+1 decay chain <a href="/wiki/Decay_product" target="_blank">/wiki/Decay_product</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></li>
<li id="fn:20">Primordial radioisotope, also some is radiogenic from the extinct nuclide 237Np <a href="/wiki/Primordial_nuclide" target="_blank">/wiki/Primordial_nuclide</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></li>
<li id="fn:21">Formerly believed to be the heaviest stable nuclide <a href="#fnref:21" class="footnote-back-ref">↩</a></li>
<li id="fn:22">Intermediate decay product of 238U <a href="/wiki/Uranium-238" target="_blank">/wiki/Uranium-238</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></li>
<li id="fn:23">Intermediate decay product of 235U <a href="/wiki/Uranium-235" target="_blank">/wiki/Uranium-235</a> <a href="#fnref:23" class="footnote-back-ref">↩</a></li>
<li id="fn:24">Intermediate decay product of 232Th <a href="/wiki/Thorium-232" target="_blank">/wiki/Thorium-232</a> <a href="#fnref:24" class="footnote-back-ref">↩</a></li>
<li id="fn:25">Used in medicine such as for cancer treatment. <a href="/wiki/Nuclear_medicine" target="_blank">/wiki/Nuclear_medicine</a> <a href="#fnref:25" class="footnote-back-ref">↩</a></li>
<li id="fn:26">A byproduct of thorium reactors via 233U. <a href="#fnref:26" class="footnote-back-ref">↩</a></li>
<li id="fn:27">Intermediate decay product of 237Np <a href="/wiki/Neptunium-237" target="_blank">/wiki/Neptunium-237</a> <a href="#fnref:27" class="footnote-back-ref">↩</a></li>
<li id="fn:28">Intermediate decay product of 238U <a href="/wiki/Uranium-238" target="_blank">/wiki/Uranium-238</a> <a href="#fnref:28" class="footnote-back-ref">↩</a></li>
<li id="fn:29">Intermediate decay product of 235U <a href="/wiki/Uranium-235" target="_blank">/wiki/Uranium-235</a> <a href="#fnref:29" class="footnote-back-ref">↩</a></li>
<li id="fn:30">Order of ground state and isomer is uncertain. <a href="#fnref:30" class="footnote-back-ref">↩</a></li>
<li id="fn:31">Imam, S (2001). "Advancements in cancer therapy with alpha-emitters: a review". International Journal of Radiation Oncology, Biology, Physics. 51 (1): 271–278. doi:10.1016/S0360-3016(01)01585-1. PMID 11516878. <a href="/wiki/Doi_(identifier)" target="_blank">/wiki/Doi_(identifier)</a> <a href="#fnref:31" class="footnote-back-ref">↩</a></li>
</ol>

Isotopes of bismuth open-in-new

Isotopes of bismuth