{{위키데이터 속성 추적}}
자연계에 존재하는 [[납]] 동위 원소는 9종이 있다. 이중 4종이 [[안정 동위 원소]]이다. <sup>204</sup>Pb와 <sup>208</sup>Pb는 [[알파 붕괴]]를 통해 [[수은]]의 안정 동위 원소로 붕괴될 것으로 예상되나, 아직 붕괴되는 모습은 관찰되지 않았다. 이 둘은 어쩌면 안정 동위 원소들처럼 붕괴하지 않을 수도 있다.

<sup>204</sup>Pb는 [[태양계]] 초기부터 그대로 존재해왔던 동위 원소이다. 이는 <sup>204</sup>Pb가 [[우라늄]]이나 [[토륨]] 등 무거운 방사성 원소의 붕괴로부터 생성된 것이 아닌 처음부터 그대로 존재해 온 [[원소]]라는 것을 뜻한다.
<sup>206</sup>Pb는 [[붕괴 계열]] 중 [[붕괴 계열#라듐 계열 (우라늄 계열)|우라늄 계열]]이며, <sup>207</sup>Pb은 [[붕괴 계열#악티늄 계열|악티늄 시리즈]], <sup>208</sup>Pb은 [[붕괴 계열#토륨 계열|토륨 계열]]의 최종 붕괴 생성물이다.

인공적으로 만들어진 납 동위 원소는 <sup>178</sup>Pb부터 <sup>215</sup>Pb까지 있다.
이들 중 <sup>205</sup>Pb은 반감기가 1530만년으로 [[태양계]] 초기에는 존재했었지만, 현재는 자연계에는 존재하지 않으며 <sup>205</sup>Tl으로 붕괴한다.
<sup>209</sup>Pb는 <sup>223</sup>Ra의 [[뭉치 붕괴]]의 생성물이며 자연계에 극미량 존재한다. 핵자 수 210, 211, 212, 214는 붕괴 사슬의 중간 동위 원소로써 자연계에 미량 존재한다.

[[납]]은 자연계에 존재하는 안정 원소들 중 가장 무거운 원소이다. (납보다 무거운 [[비스무트]]도 반감기가 매우 길어 안정 원소로 취급한다.)

== 표 ==
{| class="wikitable" style="font-size:95%; white-space:nowrap"
! rowspan="2" | 핵종<br />기호
! rowspan="2" | 과거 명칭
! Z([[양성자|p]])
! N([[중성자|n]])
! &nbsp;<br />동위 원소 질량 (u)<br />&nbsp;
! rowspan="2" | [[반감기]]
! rowspan="2" | 붕괴<br />방식<ref>{{웹 인용|url=http://www.nucleonica.net/unc.aspx |title=Universal Nuclide Chart |publisher=Nucleonica |date= |accessdate=2013-08-28}}</ref><ref group="n">약자:<br />ε: [[전자 포획]]<br />IT: [[이성질핵 전이]]</ref>
! rowspan="2" | 붕괴<br />생성물<ref group="n">굵은 글꼴은 안정 동위 원소, 굵은 기울임꼴은 감기가 우주의 나이보다 긴 동위 원소(거의 안정적)</ref>
! rowspan="2" | 핵<br />스핀
! rowspan="2" | 전형적<br />동위 원소<br />구성비<br />(몰 분율)
! rowspan="2" | 자연적<br />구성비<br />변동 범위<br />(몰 분율)
|-
! colspan="3" | [[들뜬 상태|들뜬 에너지]]
|-
| <sup>178</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 96
| 178.003830(26)
| 0.23(15) ms
|
|
| 0+
|
|
|-
| <sup>179</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 97
| 179.00215(21)#
| 3# ms
|
|
| 5/2-#
|
|
|-
| <sup>180</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 98
| 179.997918(22)
| 4.5(11) ms
|
|
| 0+
|
|
|-
| rowspan=2|<sup>181</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 99
| rowspan=2|180.99662(10)
| rowspan=2|45(20) ms
| [[알파 붕괴|α]] (98%)
| <sup>177</sup>Hg
| rowspan=2|5/2-#
| rowspan=2|
| rowspan=2|
|-
| [[베타 붕괴|β<sup>+</sup>]] (2%)
| <sup>181</sup>Tl
|-
| rowspan=2|<sup>182</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 100
| rowspan=2|181.992672(15)
| rowspan=2|60(40) ms<br />[55(+40-35) ms]
| α (98%)
| <sup>178</sup>Hg
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (2%)
| <sup>182</sup>Tl
|-
| rowspan=2|<sup>183</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 101
| rowspan=2|182.99187(3)
| rowspan=2|535(30) ms
| α (94%)
| <sup>179</sup>Hg
| rowspan=2|(3/2-)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (6%)
| <sup>183</sup>Tl
|-
| rowspan=2 style="text-indent:1em" | <sup>183m</sup>Pb
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 94(8) keV
| rowspan=2|415(20) ms
| α
| <sup>179</sup>Hg
| rowspan=2|(13/2+)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (드묾)
| <sup>183</sup>Tl
|-
| rowspan=2|<sup>184</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 102
| rowspan=2|183.988142(15)
| rowspan=2|490(25) ms
| α
| <sup>180</sup>Hg
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (드묾)
| <sup>184</sup>Tl
|-
| rowspan=2|<sup>185</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 103
| rowspan=2|184.987610(17)
| rowspan=2|6.3(4) s
| α
| <sup>181</sup>Hg
| rowspan=2|3/2-
| rowspan=2| 
| rowspan=2|
|-
| β<sup>+</sup> (드묾)
| <sup>185</sup>Tl
|-
| rowspan=2 style="text-indent:1em" | <sup>185m</sup>Pb
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 60(40)# keV
| rowspan=2|4.07(15) s
| α
| <sup>181</sup>Hg
| rowspan=2|13/2+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (드묾)
| <sup>185</sup>Tl
|-
| rowspan=2|<sup>186</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 104
| rowspan=2|185.984239(12)
| rowspan=2|4.82(3) s
| α (56%)
| <sup>182</sup>Hg
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (44%)
| <sup>186</sup>Tl
|-
| rowspan=2|<sup>187</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 105
| rowspan=2|186.983918(9)
| rowspan=2|15.2(3) s
| β<sup>+</sup>
| <sup>187</sup>Tl
| rowspan=2|(3/2-)
| rowspan=2|
| rowspan=2|
|-
| α
| <sup>183</sup>Hg
|-
| rowspan=2 style="text-indent:1em" | <sup>187m</sup>Pb
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 11(11) keV
| rowspan=2|18.3(3) s
| β<sup>+</sup> (98%)
| <sup>187</sup>Tl
| rowspan=2|(13/2+)
| rowspan=2|
| rowspan=2|
|-
| α (2%)
| <sup>183</sup>Hg
|-
| rowspan=2|<sup>188</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 106
| rowspan=2|187.980874(11)
| rowspan=2|25.5(1) s
| β<sup>+</sup> (91.5%)
| <sup>188</sup>Tl
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (8.5%)
| <sup>184</sup>Hg
|-
| style="text-indent:1em" | <sup>188m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2578.2(7) keV
| 830(210) ns
|
|
| (8-)
|
|
|-
| style="text-indent:1em" | <sup>188m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2800(50) keV
| 797(21) ns
|
|
|
|
|
|-
| <sup>189</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 107
| 188.98081(4)
| 51(3) s
| β<sup>+</sup>
| <sup>189</sup>Tl
| (3/2-)
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>189m</sup>Pb
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 40(30)# keV
| rowspan=2|1# min
| β<sup>+</sup> (99.6%)
| <sup>189</sup>Tl
| rowspan=2|(13/2+)
| rowspan=2| 
| rowspan=2|
|-
| α (0.4%)
| <sup>185</sup>Hg
|-
| rowspan=2|<sup>190</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 108
| rowspan=2|189.978082(13)
| rowspan=2|71(1) s
| β<sup>+</sup> (99.1%)
| <sup>190</sup>Tl
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (0.9%)
| <sup>186</sup>Hg
|-
| style="text-indent:1em" | <sup>190m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2614.8(8) keV
| 150 ns
|
|
| (10)+
|
|
|-
| style="text-indent:1em" | <sup>190m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2618(20) keV
| 25 µs
|
|
| (12+)
|
|
|-
| style="text-indent:1em" | <sup>190m3</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2658.2(8) keV
| 7.2(6) µs
|
|
| (11)-
|
|
|-
| rowspan=2|<sup>191</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 109
| rowspan=2|190.97827(4)
| rowspan=2|1.33(8) min
| β<sup>+</sup> (99.987%)
| <sup>191</sup>Tl
| rowspan=2|(3/2-)
| rowspan=2|
| rowspan=2|
|-
| α (0.013%)
| <sup>187</sup>Hg
|-
| rowspan=2 style="text-indent:1em" | <sup>191m</sup>Pb
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 20(50) keV
| rowspan=2|2.18(8) min
| β<sup>+</sup> (99.98%)
| <sup>191</sup>Tl
| rowspan=2|13/2(+)
| rowspan=2|
| rowspan=2|
|-
| α (0.02%)
| <sup>187</sup>Hg
|-
| rowspan=2|<sup>192</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 110
| rowspan=2|191.975785(14)
| rowspan=2|3.5(1) min
| β<sup>+</sup> (99.99%)
| <sup>192</sup>Tl
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (0.0061%)
| <sup>188</sup>Hg
|-
| style="text-indent:1em" | <sup>192m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2581.1(1) keV
| 164(7) ns
|
|
| (10)+
|
|
|-
| style="text-indent:1em" | <sup>192m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2625.1(11) keV
| 1.1(5) µs
|
|
| (12+)
|
|
|-
| style="text-indent:1em" | <sup>192m3</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2743.5(4) keV
| 756(21) ns
|
|
| (11)-
|
|
|-
| <sup>193</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 111
| 192.97617(5)
| 5# min
| β<sup>+</sup>
| <sup>193</sup>Tl
| (3/2-)
|
|
|-
| style="text-indent:1em" | <sup>193m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 130(80)# keV
| 5.8(2) min
| β<sup>+</sup>
| <sup>193</sup>Tl
| 13/2(+)
|
|
|-
| style="text-indent:1em" | <sup>193m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2612.5(5)+X keV
| 135(+25-15) ns
|
|
| (33/2+)
|
|
|-
| rowspan=2|<sup>194</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 112
| rowspan=2|193.974012(19)
| rowspan=2|12.0(5) min
| β<sup>+</sup> (100%)
| <sup>194</sup>Tl
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (7.3&times;10<sup>−6</sup>%)
| <sup>190</sup>Hg
|-
| <sup>195</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 113
| 194.974542(25)
| ~15 min
| β<sup>+</sup>
| <sup>195</sup>Tl
| 3/2#-
|
|
|-
| style="text-indent:1em" | <sup>195m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 202.9(7) keV
| 15.0(12) min
| β<sup>+</sup>
| <sup>195</sup>Tl
| 13/2+
|
|
|-
| style="text-indent:1em" | <sup>195m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1759.0(7) keV
| 10.0(7) µs
|
|
| 21/2-
|
|
|-
| rowspan=2|<sup>196</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 114
| rowspan=2|195.972774(15)
| rowspan=2|37(3) min
| β<sup>+</sup>
| <sup>196</sup>Tl
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (3&times;10<sup>−5</sup>%)
| <sup>192</sup>Hg
|-
| style="text-indent:1em" | <sup>196m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1049.20(9) keV
| <100 ns
|
|
| 2+
|
|
|-
| style="text-indent:1em" | <sup>196m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1738.27(12) keV
| <1 µs
|
|
| 4+
|
|
|-
| style="text-indent:1em" | <sup>196m3</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1797.51(14) keV
| 140(14) ns
|
|
| 5-
|
|
|-
| style="text-indent:1em" | <sup>196m4</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2693.5(5) keV
| 270(4) ns
|
|
| (12+)
|
|
|-
| <sup>197</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 115
| 196.973431(6)
| 8.1(17) min
| β<sup>+</sup>
| <sup>197</sup>Tl
| 3/2-
|
|
|-
| rowspan=3 style="text-indent:1em" | <sup>197m1</sup>Pb
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 319.31(11) keV
| rowspan=3|42.9(9) min
| β<sup>+</sup> (81%)
| <sup>197</sup>Tl
| rowspan=3|13/2+
| rowspan=3|
| rowspan=3|
|-
| IT (19%)
| <sup>197</sup>Pb
|-
| α (3&times;10<sup>−4</sup>%)
| <sup>193</sup>Hg
|-
| style="text-indent:1em" | <sup>197m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1914.10(25) keV
| 1.15(20) µs
|
|
| 21/2-
|
|
|-
| <sup>198</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 116
| 197.972034(16)
| 2.4(1) h
| β<sup>+</sup>
| <sup>198</sup>Tl
| 0+
|
|
|-
| style="text-indent:1em" | <sup>198m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2141.4(4) keV
| 4.19(10) µs
|
|
| (7)-
|
|
|-
| style="text-indent:1em" | <sup>198m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2231.4(5) keV
| 137(10) ns
|
|
| (9)-
|
|
|-
| style="text-indent:1em" | <sup>198m3</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2820.5(7) keV
| 212(4) ns
|
|
| (12)+
|
|
|-
| <sup>199</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 117
| 198.972917(28)
| 90(10) min
| β<sup>+</sup>
| <sup>199</sup>Tl
| 3/2-
|
|
|-
| rowspan=2 style="text-indent:1em" | <sup>199m1</sup>Pb
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 429.5(27) keV
| rowspan=2|12.2(3) min
| IT (93%)
| <sup>199</sup>Pb
| rowspan=2|(13/2+)
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (7%)
| <sup>199</sup>Tl
|-
| style="text-indent:1em" | <sup>199m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2563.8(27) keV
| 10.1(2) µs
|
|
| (29/2-)
|
|
|-
| <sup>200</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 118
| 199.971827(12)
| 21.5(4) h
| β<sup>+</sup>
| <sup>200</sup>Tl
| 0+
|
|
|-
| rowspan=2|<sup>201</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 119
| rowspan=2|200.972885(24)
| rowspan=2|9.33(3) h
| ε (99%)
| <sup>201</sup>Pb
| rowspan=2|5/2-
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (1%)
| <sup>201</sup>Tl
|-
| style="text-indent:1em" | <sup>201m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 629.14(17) keV
| 61(2) s
|
|
| 13/2+
|
|
|-
| style="text-indent:1em" | <sup>201m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2718.5+X keV
| 508(5) ns
|
|
| (29/2-)
|
|
|-
| rowspan=2|<sup>202</sup>Pb
| rowspan=2|
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 120
| rowspan=2|201.972159(9)
| rowspan=2|52.5(28)&times;10<sup>3</sup> a
| [[전자 포획|ε]] (99%)
| <sup>202</sup>Tl
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (1%)
| '''<sup>198</sup>Hg'''
|-
| rowspan=2 style="text-indent:1em" | <sup>202m1</sup>Pb
| rowspan=2|
| rowspan=2 colspan="3" style="text-indent:2em" | 2169.83(7) keV
| rowspan=2|3.53(1) h
| IT (90.5%)
| <sup>202</sup>Pb
| rowspan=2|9-
| rowspan=2|
| rowspan=2|
|-
| ε (9.5%)
| <sup>202</sup>Tl
|-
| style="text-indent:1em" | <sup>202m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 4142.9(11) keV
| 110(5) ns
|
|
| (16+)
|
|
|-
| style="text-indent:1em" | <sup>202m3</sup>Pb
|
| colspan="3" style="text-indent:2em" | 5345.9(13) keV
| 107(5) ns
|
|
| (19-)
|
|
|-
| <sup>203</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 121
| 202.973391(7)
| 51.873(9) h
| ε
| '''<sup>203</sup>Tl'''
| 5/2-
|
|
|-
| style="text-indent:1em" | <sup>203m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 825.20(9) keV
| 6.21(8) s
| IT
| <sup>203</sup>Pb
| 13/2+
|
|
|-
| style="text-indent:1em" | <sup>203m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2949.47(22) keV
| 480(7) ms
|
|
| 29/2-
|
|
|-
| style="text-indent:1em" | <sup>203m3</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2923.4+X keV
| 122(4) ns
|
|
| (25/2-)
|
|
|-
| <sup>204</sup>Pb<ref group="n" name="rd">[[방사성 연대 측정]]에 사용된다.</ref>
|
| style="text-align:right" | 82
| style="text-align:right" | 122
| 203.9730436(13)
| colspan="3" style="text-align:center;"|'''[[관측상 안정]]'''<ref group="n">1.4&times;10<sup>35</sup>년 이상의 반감기를 거쳐 알파 붕괴하여 '''<sup>200</sup>Hg'''로 붕괴할 것으로 추정된다.</ref>
| 0+
| 0.014(1)
| 0.0104-0.0165
|-
| style="text-indent:1em" | <sup>204m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1274.00(4) keV
| 265(10) ns
|
|
| 4+
|
|
|-
| style="text-indent:1em" | <sup>204m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2185.79(5) keV
| 67.2(3) min
|
|
| 9-
|
|
|-
| style="text-indent:1em" | <sup>204m3</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2264.33(4) keV
| 0.45(+10-3) µs
|
|
| 7-
|
|
|-
| <sup>205</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 123
| 204.9744818(13)
| 15.3(7)&times;10<sup>6</sup> a
| ε
| '''<sup>205</sup>Tl'''
| 5/2-
|
|
|-
| style="text-indent:1em" | <sup>205m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2.329(7) keV
| 24.2(4) µs
|
|
| 1/2-
|
|
|-
| style="text-indent:1em" | <sup>205m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1013.839(13) keV
| 5.55(2) ms
|
|
| 13/2+
|
|
|-
| style="text-indent:1em" | <sup>205m3</sup>Pb
|
| colspan="3" style="text-indent:2em" | 3195.7(5) keV
| 217(5) ns
|
|
| 25/2-
|
|
|-
| <sup>206</sup>Pb<ref group="n" name="rd" /><ref group="n">[[붕괴 계열#라듐 계열 (우라늄 계열)|우라늄 계열]]의 최종 [[붕괴 생성물]]이다.</ref>
| 라듐 G
| style="text-align:right" | 82
| style="text-align:right" | 124
| 205.9744653(13)
| colspan="3" style="text-align:center;"|'''관측상 안정'''<ref group="n">알파 붕괴를 통해 '''<sup>202</sup>Hg'''로 붕괴할 것으로 추정된다.</ref>
| 0+
| 0.241(1)
| 0.2084-0.2748
|-
| style="text-indent:1em" | <sup>206m1</sup>Pb
|
| colspan="3" style="text-indent:2em" | 2200.14(4) keV
| 125(2) µs
|
|
| 7-
|
|
|-
| style="text-indent:1em" | <sup>206m2</sup>Pb
|
| colspan="3" style="text-indent:2em" | 4027.3(7) keV
| 202(3) ns
|
|
| 12+
|
|
|-
| <sup>207</sup>Pb<ref group="n" name="rd" /><ref group="n">[[붕괴 계열#악티늄 계열|악티늄 계열]]의 최종 붕괴 생성물이다.</ref>
| 악티늄 D
| style="text-align:right" | 82
| style="text-align:right" | 125
| 206.9758969(13)
| colspan="3" style="text-align:center;"|'''관측상 안정'''<ref group="n">알파 붕괴를 통해 '''<sup>203</sup>Hg'''으로 붕괴할 것으로 추정된다.</ref>
| 1/2-
| 0.221(1)
| 0.1762-0.2365
|-
| style="text-indent:1em" | <sup>207m</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1633.368(5) keV
| 806(6) ms
| IT
| '''<sup>207</sup>Pb'''
| 13/2+
|
|
|-
| <sup>208</sup>Pb<ref group="n">[[붕괴 계열#토륨 계열|토륨 계열]]의 최종 붕괴 생성물이다.</ref>
| 토륨 D
| style="text-align:right" | 82
| style="text-align:right" | 126
| 207.9766521(13)
| colspan="3" style="text-align:center;"|'''관측상 안정'''<ref group="n">현재까지 관측상 안정한 핵종 중 가장 무거운 핵종이며, 2&times;10<sup>189</sup>년 이상의 [[반감기]]를 거쳐 알파 붕괴를 통해 '''<sup>204</sup>Hg'''로 붕괴할 것으로 추정된다.</ref>
| 0+
| 0.524(1)
| 0.5128-0.5621
|-
| style="text-indent:1em" | <sup>208m</sup>Pb
|
| colspan="3" style="text-indent:2em" | 4895(2) keV
| 500(10) ns
|
|
| 10+
|
|
|-
| <sup>209</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 127
| 208.9810901(19)
| 3.253(14) h
| β<sup>-</sup>
| '''''<sup>209</sup>Bi'''''
| 9/2+
| 미량<ref group="n">[[우라늄-235|<sup>235</sup>U]]의 [[붕괴 계열]]에서 일어나는 <sup>223</sup>Ra의 [[뭉치 붕괴]] 결과물이다.</ref>
|
|-
| rowspan=2|<sup>210</sup>Pb
| rowspan=2|라듐 D<br />방사성 납
| rowspan=2 style="text-align:right" | 82
| rowspan=2 style="text-align:right" | 128
| rowspan=2|209.9841885(16)
| rowspan=2|22.20(22) a
| β<sup>-</sup> (100%)
| <sup>210</sup>Bi
| rowspan=2|0+
| rowspan=2|미량<ref group="n" name="RS">[[우라늄-238|<sup>238</sup>U]]의 중간 붕괴 생성물이다.</ref>
| rowspan=2|
|-
| α (1.9&times;10<sup>−6</sup>%)
| <sup>206</sup>Hg
|-
| style="text-indent:1em" | <sup>210m</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1278(5) keV
| 201(17) ns
|
|
| 8+
|
|
|-
| <sup>211</sup>Pb
| 악티늄 B
| style="text-align:right" | 82
| style="text-align:right" | 129
| 210.9887370(29)
| 36.1(2) min
| β<sup>-</sup>
| <sup>211</sup>Bi
| 9/2+
| 미량<ref group="n">[[우라늄-235|<sup>235</sup>U]]의 중간 붕괴 생성물이다.</ref>
|
|-
| <sup>212</sup>Pb
| 토륨 B
| style="text-align:right" | 82
| style="text-align:right" | 130
| 211.9918975(24)
| 10.64(1) h
| β<sup>-</sup>
| <sup>212</sup>Bi
| 0+
| 미량<ref group="n"><sup>232</sup>Th의 중간 붕괴 생성물이다.</ref>
|
|-
| style="text-indent:1em" | <sup>212m</sup>Pb
|
| colspan="3" style="text-indent:2em" | 1335(10) keV
| 5(1) µs
|
|
| (8+)
|
|
|-
| <sup>213</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 131
| 212.996581(8)
| 10.2(3) min
| β<sup>-</sup>
| <sup>213</sup>Bi
| (9/2+)
|
|
|-
| <sup>214</sup>Pb
| 라듐 B
| style="text-align:right" | 82
| style="text-align:right" | 132
| 213.9998054(26)
| 26.8(9) min
| β<sup>-</sup>
| <sup>214</sup>Bi
| 0+
| 미량<ref group="n" name="RS" />
|
|-
| <sup>215</sup>Pb
|
| style="text-align:right" | 82
| style="text-align:right" | 133
| 215.00481(44)#
| 36(1) s
|
|
| 5/2+#
|
|
|}

== 참고 ==
<references group="n" />

== 각주 ==
<references />

{{동위 원소 색인}}

{{전거 통제}}

[[분류:납|동위 원소]]
[[분류:납 동위 원소| ]]
[[분류:원소별 동위 원소 목록]]