Lead/Isotopes

Isotopes of Lead (Z=82) and Their Physical Properties

Isotope	Half-life	spin	Abundance or Decay
181Pb	45 ms	(13/2+)	%A ~ 98
182Pb	55 ms	0+	%A=?
183Pb	300 ms	(1/2-)	%A ~ 94, %EC+%B+ ~ 6
184Pb	0.55 s	0+	%A=?
185Pb	4.1 s		%A < 100
186Pb	4.83 s	0+	%A=54 20, %EC+%B+=46 20
187Pb	18.3 s	(13/2+)	%EC+%B+=98.0, %A=2.0
187m1Pb	15.2 s		%A=?, %EC+%B+=?
188Pb	24 s	0+	%EC+%B+=91.5 13, %A=8.5 13
189Pb	51 s		%EC+%B+ > 99, %A ~ 0.4
190Pb	1.2 m	0+	%EC+%B+=99.79 7, %A=0.21 7
191Pb	1.33 m	(3/2-)	%EC+%B+=99.987 5, %A=0.013 5
191m1Pb	2.18 m	(13/2+)	%EC+%B+=100, %A ~ 0.02
192Pb	3.5 m	0+	%EC+%B+=99.9941 6, %A=0.0059 6
193Pb	2 m	(3/2-)	%EC+%B+=?
193m1Pb	5.8 m	(13/2+)	%EC+%B+=100
193m1Pb	5.8 m	(13/2+)	%EC+%B+=100
194Pb	12.0 m	0+	%EC+%B+=100, %A=7.3E-6 29
195Pb	15 m	3/2-	%EC+%B+=100
195m1Pb	15.0 m	13/2+	%EC+%B+=100
196Pb	37 m	0+	%EC+%B+=100, %A < 3E-5
197Pb	8 m	3/2-	%EC+%B+=100
197m1Pb	43 m	13/2+	%EC+%B+=81 2, %IT=19 2
198Pb	2.40 h	0+	%EC+%B+=100
199Pb	90 m	3/2-	%EC+%B+=100
199m1Pb	12.2 m	13/2+	%IT=93, %EC+%B+=7
200Pb	21.5 h	0+	%EC=100
201Pb	9.33 h	5/2-	%EC+%B+=100
201m1Pb	61 s	13/2+	%IT>99, %EC+%B+<1
202m1Pb	5.25e4 y	0+	%EC=100, %A<1
203Pb	51.873 h	5/2-	%EC=100
203m1Pb	6.3 s	13/2+	%IT=100
203m2Pb	0.48 s	29/2-	%IT=100
204Pb	1.4e17 y	0+	%Abundance=1.4 1
204m1Pb	67.2 m	9-	%IT=100
205Pb	1.53e+7 y	5/2-	%EC=100
205m1Pb	5.54 ms	13/2+	%IT=100
206Pb	stable	0+	%Abundance=24.1 1
207Pb	stable	1/2-	%Abundance=22.1 1
207m1Pb	0.805 s	13/2+	%IT=100
208Pb	stable	0+	%Abundance=52.4 1
209Pb	3.253 h	9/2+	%B-=100
210Pb	22.3 y	0+	%B-=100, %A=1.9E-6 4
211Pb	36.1 m	9/2+	%B- =100
212Pb	10.64 h	0+	%B-=100
213Pb	10.2 m	(9/2+)	%B-=100
214Pb	26.8 m	0+	%B-=100
215Pb	36 s	(5/2+)	%B-=100