鉛的同位素

鉛有178Pb至220Pb共43種同位素，其中4個（204Pb、206Pb、207Pb、208Pb）是穩定的。208在所有的穩定同位素中，質量數最大。208是一個雙幻數核，分別為82個質子和126箇中子。

**圖表**
178Pb
82
96
178.003830(26)
0.23(15) ms
α
174Hg
0+
179Pb
82
97
179.00215(21)#
3.9(1.1) ms
α
175Hg
(9/2−)
180Pb
82
98
179.997918(22)
4.5(11) ms
α
176Hg
0+
181Pb
82
99
180.99662(10)
45(20) ms
α (98%)
177Hg
5/2−#
β+ (2%)
181Tl
182Pb
82
100
181.992672(15)
60(40) ms55(+40−35) ms
α (98%)
178Hg
0+
β+ (2%)
182Tl
183Pb
82
101
182.99187(3)
535(30) ms
α (94%)
179Hg
(3/2−)
β+ (6%)
183Tl
183mPb
94(8) keV
415(20) ms
α
179Hg
(13/2+)
β+ （不常見）
183Tl
184Pb
82
102
183.988142(15)
490(25) ms
α
180Hg
0+
β+ （不常見）
184Tl
185Pb
82
103
184.987610(17)
6.3(4) s
α
181Hg
3/2−
β+ （不常見）
185Tl
185mPb
60(40)# keV
4.07(15) s
α
181Hg
13/2+
β+ （不常見）
185Tl
186Pb
82
104
185.984239(12)
4.82(3) s
α (56%)
182Hg
0+
β+ (44%)
186Tl
187Pb
82
105
186.983918(9)
15.2(3) s
β+
187Tl
(3/2−)
α
183Hg
187mPb
11(11) keV
18.3(3) s
β+ (98%)
187Tl
(13/2+)
α (2%)
183Hg
188Pb
82
106
187.980874(11)
25.5(1) s
β+ (91.5%)
188Tl
0+
α (8.5%)
184Hg
188m1Pb
2578.2(7) keV
830(210) ns
(8−)
188m2Pb
2800(50) keV
797(21) ns
189Pb
82
107
188.98081(4)
51(3) s
β+
189Tl
(3/2−)
189mPb
40(30)# keV
1# min
β+ (99.6%)
189Tl
(13/2+)
α (.4%)
185Hg
190Pb
82
108
189.978082(13)
71(1) s
β+ (99.1%)
190Tl
0+
α (.9%)
186Hg
190m1Pb
2614.8(8) keV
150 ns
(10)+
190m2Pb
2618(20) keV
25 µs
(12+)
190m3Pb
2658.2(8) keV
7.2(6) µs
(11)−
191Pb
82
109
190.97827(4)
1.33(8) min
β+ (99.987%)
191Tl
(3/2−)
α (.013%)
187Hg
191mPb
20(50) keV
2.18(8) min
β+ (99.98%)
191Tl
13/2(+)
α (.02%)
187Hg
192Pb
82
110
191.975785(14)
3.5(1) min
β+ (99.99%)
192Tl
0+
α (.0061%)
188Hg
192m1Pb
2581.1(1) keV
164(7) ns
(10)+
192m2Pb
2625.1(11) keV
1.1(5) µs
(12+)
192m3Pb
2743.5(4) keV
756(21) ns
(11)−
193Pb
82
111
192.97617(5)
5# min
β+
193Tl
(3/2−)
193m1Pb
130(80)# keV
5.8(2) min
β+
193Tl
13/2(+)
193m2Pb
2612.5(5)+X keV
135(+25−15) ns
(33/2+)
194Pb
82
112
193.974012(19)
12.0(5) min
β+ (100%)
194Tl
0+
α (7.3×10−6%)
190Hg
195Pb
82
113
194.974542(25)
~15 min
β+
195Tl
3/2#-
195m1Pb
202.9(7) keV
15.0(12) min
β+
195Tl
13/2+
195m2Pb
1759.0(7) keV
10.0(7) µs
21/2−
196Pb
82
114
195.972774(15)
37(3) min
β+
196Tl
0+
α (3×10−5%)
192Hg
196m1Pb
1049.20(9) keV
196m2Pb
1738.27(12) keV
196m3Pb
1797.51(14) keV
140(14) ns
5−
196m4Pb
2693.5(5) keV
270(4) ns
(12+)
197Pb
82
115
196.973431(6)
8.1(17) min
β+
197Tl
3/2−
197m1Pb
319.31(11) keV
42.9(9) min
β+ (81%)
197Tl
13/2+
IT (19%)
197Pb
α (3×10−4%)
193Hg
197m2Pb
1914.10(25) keV
1.15(20) µs
21/2−
198Pb
82
116
197.972034(16)
2.4(1) h
β+
198Tl
0+
198m1Pb
2141.4(4) keV
4.19(10) µs
(7)−
198m2Pb
2231.4(5) keV
137(10) ns
(9)−
198m3Pb
2820.5(7) keV
212(4) ns
(12)+
199Pb
82
117
198.972917(28)
90(10) min
β+
199Tl
3/2−
199m1Pb
429.5(27) keV
12.2(3) min
IT (93%)
199Pb
(13/2+)
β+ (7%)
199Tl
199m2Pb
2563.8(27) keV
10.1(2) µs
(29/2−)
200Pb
82
118
199.971827(12)
21.5(4) h
β+
200Tl
0+
201Pb
82
119
200.972885(24)
9.33(3) h
EC (99%)
201Pb
5/2−
β+ (1%)
201Tl
201m1Pb
629.14(17) keV
61(2) s
13/2+
201m2Pb
2718.5+X keV
508(5) ns
(29/2−)
202Pb

82
120
201.972159(9)
52.5(28)×103 y
EC
202Tl
0+


202m1Pb
2169.83(7) keV
3.53(1) h
IT (90.5%)
202Pb
9−
EC (9.5%)
202Tl
202m2Pb
4142.9(11) keV
110(5) ns
(16+)
202m3Pb
5345.9(13) keV
107(5) ns
(19−)
203Pb
82
121
202.973391(7)
51.873(9) h
EC
203Tl
5/2−
203m1Pb
825.20(9) keV
6.21(8) s
IT
203Pb
13/2+
203m2Pb
2949.47(22) keV
480(7) ms
29/2−
203m3Pb
2923.4+X keV
122(4) ns
(25/2−)
204Pb
82
122
203.9730436(13)
觀測上穩定
0+
0.014(1)
0.0104–0.0165
204m1Pb
1274.00(4) keV
265(10) ns
4+
204m2Pb
2185.79(5) keV
67.2(3) min
9−
204m3Pb
2264.33(4) keV
0.45(+10−3) µs
7−
205Pb
82
123
204.9744818(13)
15.3(7)×106 y
EC
205Tl
5/2−
205m1Pb
2.329(7) keV
24.2(4) µs
1/2−
205m2Pb
1013.839(13) keV
5.55(2) ms
13/2+
205m3Pb
3195.7(5) keV
217(5) ns
25/2−
206Pb
Radium G
82
124
205.9744653(13)
觀測上穩定
0+
0.241(1)
0.2084–0.2748
206m1Pb
2200.14(4) keV
125(2) µs
7−
206m2Pb
4027.3(7) keV
202(3) ns
12+
207Pb
Actinium D
82
125
206.9758969(13)
觀測上穩定
1/2−
0.221(1)
0.1762–0.2365
207mPb
1633.368(5) keV
806(6) ms
IT
207Pb
13/2+
208Pb
Thorium D
82
126
207.9766521(13)
觀測上穩定
0+
0.524(1)
0.5128–0.5621
208mPb
4895(2) keV
500(10) ns
10+
209Pb
82
127
208.9810901(19)
3.253(14) h
β-
209Bi
9/2+
痕量
210Pb
Radium DRadioleadRadio-lead
82
128
209.9841885(16)
22.20(22) y
β- (100%)
210Bi
0+
痕量
α (1.9×10−6%)
206Hg
210mPb
1278(5) keV
201(17) ns
8+
211Pb
Actinium B
82
129
210.9887370(29)
36.1(2) min
β-
211Bi
9/2+
痕量
212Pb
Thorium B
82
130
211.9918975(24)
10.64(1) h
β-
212Bi
0+
痕量
212mPb
1335(10) keV
5(1) µs
(8+)
213Pb
82
131
212.996581(8)
10.2(3) min
β-
213Bi
(9/2+)
214Pb
Radium B
82
132
213.9998054(26)
26.8(9) min
β-
214Bi
0+
痕量
214mPb
1420(20) keV
6.2(0.3) μs
IT
212Pb
8+#
215Pb
82
133
215.004660(60)
2.34(0.19) min
β−
215Bi
9/2+#
216Pb
82
134
216.008030(210)#
1.65(0.2) min
β−
216Bi
0+
216mPb
1514(20) keV
400(40) ns
IT
216Pb
8+#
217Pb
82
135
217.013140(320)#
20(5) s
β−
217Bi
9/2+#
218Pb
82
136
218.016590(320)#
15(7) s
β−
218Bi
0+
219Pb
82
137
219.02214(43)#
3# s>300 ns
11/2+#
220Pb
82
138
220.02591(43)#
1# s>300 ns
0+

**鉛-212**
212Pb可用於targeted alpha-particle therapy。

**參考文獻**
 Isotope masses from  Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).- Isotopic compositions and standard atomic masses from  Atomic weights of the elements. Review 2000 (IUPAC Technical Report) date=20110324090740 . Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and  Atomic Weights Revised (2005) date=20080305062433 .- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
** Audi, Bersillon, Blachot, Wapstra.  The Nubase2003 evaluation of nuclear and decay properties date=20110716114059 , Nuc. Phys. A 729, pp. 3-128 (2003).
** National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the  NuDat 2.1 database date=20190513230730  (retrieved Sept. 2005).
** David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.