Isotope

Isotopic Mass

amu

% Abundance

T_1/2

T_1/2

Units

Mass Excess

KeV

Binding Energy

Per Nucleon

KeV

Decay

Mode

Branching

Ratio

¹⁷⁸Pb

178.003830 (26)

230

us

3,568 (24)

7,690.9 (1.4)

A~100

¹⁷⁹Pb

179.00215 (21)

3

ms

2,000 (200)

7,702 (1)

A ?

¹⁸⁰Pb

179.997918 (22)

5

ms

-1,939 (21)

7,725.7 (1.2)

A

100

¹⁸¹Pb

180.996624 (97)

45

ms

-3,145 (90)

7,734.3 (5)

A

?

¹⁸²Pb

181.992672 (15)

60

ms

-6,826 (14)

7,756.34 (7.7)

A

?

¹⁸³Pb

182.991875 (30)

535

ms

-7,569 (28)

7,762.1 (1.5)

A

?

¹⁸⁴Pb

183.988142 (15)

490

ms

-11,045 (14)

7,782.69 (7.8)

A

80 15

¹⁸⁵Pb

184.987610 (17)

6.3

s

-11,541 (16)

7,786.93 (8.7)

A

50 25

¹⁸⁶Pb

185.984239 (12)

4.82

s

-14,681 (11)

7,805.34 (6.1)

B+ ?

¹⁸⁷Pb

186.9839184 (89)

15.2

s

-14,979.9 (8.3)

7,808.36 (4.4)

B+

93 2

¹⁸⁸Pb

187.980874 (11)

25.5

s

-17,815 (11)

7,824.84 (5.7)

B+

?

¹⁸⁹Pb

188.980807 (37)

51

s

-17,878 (34)

7,826.5 (1.8)

B+>99

¹⁹⁰Pb

189.978082 (13)

71

s

-20,417 (12)

7,841.13 (6.4)

B+ ?

¹⁹¹Pb

190.978265 (42)

1.33

m

-20,246 (39)

7,841.4 (2)

B+~100

¹⁹²Pb

191.975785 (14)

3.5

m

-22,556 (13)

7,854.67 (6.6)

B+~100

¹⁹³Pb

192.976173 (53)

5

m

-22,194 (50)

7,853.9 (2.6)

B+ ?

¹⁹⁴Pb

193.974012 (19)

12

m

-24,208 (17)

7,865.42 (9)

B+

100

¹⁹⁵Pb

194.974542 (25)

~15

m

-23,714 (23)

7,863.9 (1.2)

B+

100

¹⁹⁶Pb

195.972774 (15)

37

m

-25,361 (14)

7,873.40 (7.3)

B+

100

¹⁹⁷Pb

196.9734311 (60)

8

m

-24,748.7 (5.6)

7,871.30 (2.8)

B+

¹⁹⁸Pb

197.972034 (16)

2.4

h

-26,050 (15)

7,878.88 (7.4)

B+

100

¹⁹⁹Pb

198.972917 (28)

90

m

-25,228 (26)

7,875.7 (1.3)

B+

100

²⁰⁰Pb

199.971827 (12)

21.5

h

-26,243 (11)

7,881.77 (5.5)

EC

100

²⁰¹Pb

200.972885 (24)

9.33

h

-25,258 (22)

7,877.8 (1.1)

B+

100

²⁰²Pb

201.9721591 (88)

52.5

ky

-25,933.6 (8.2)

7,882.12 (4)

EC~100

²⁰³Pb

202.9733905 (70)

51.873

h

-24,786.6 (6.5)

7,877.40 (3.2)

EC

100

²⁰⁴Pb

203.9730436 (13)

1.4 (1)

stable

-25,109.7 (1.2)

7,879.931 (6)

²⁰⁵Pb

204.9744818 (13)

15.3

My

-23,770.1 (1.2)

7,874.330 (6)

EC

100

²⁰⁶Pb

205.9744653 (13)

24.1 (1)

stable

-23,785.4 (1.2)

7,875.361 (6)

²⁰⁷Pb

206.9758969 (13)

22.1 (1)

stable

-22,451.9 (1.2)

7,869.865 (6)

²⁰⁸Pb

207.9766521 (13)

52.4 (1)

stable

-21,748.5 (1.2)

7,867.452 (6)

²⁰⁹Pb

208.9810901 (19)

3.253

h

-17,614.4 (1.8)

7,848.647 (9)

B-

100

²¹⁰Pb

209.9841885 (16)

22.2

y

-14,728.3 (1.5)

7,835.964 (7)

B-

100

²¹¹Pb

210.9887370 (29)

36.1

m

-10,491.5 (2.7)

7,817.00 (1.3)

B-

100

²¹²Pb

211.9918975 (24)

10.64

h

-7,547.4 (2.2)

7,804.31 (1)

B-

100

²¹³Pb

212.9965815 (84)

10.2

m

-3,184.3 (7.8)

7,785.08 (3.7)

B-

100

²¹⁴Pb

213.9998054 (26)

26.8

m

-181.3 (2.4)

7,772.39 (1.1)

B-

100

²¹⁵Pb

215.00481 (44)

36

s

4,480 (410)

7,752 (2)

B-

100

^181mPb

180.996624 (97)

&

-3,145 (90)

7,734.3 (5)

0

^183mPb

182.991875 (30)

415

ms

-7,569 (28)

7,762.1 (1.5)

A~100

^185mPb

184.987610 (17)

4.07

s

-11,541 (16)

7,786.93 (8.7)

A

50 25

^187mPb

186.9839184 (89)

18.3

s

-14,979.9 (8.3)

7,808.36 (4.4)

B+

88 2

^188mPb

187.980874 (11)

830

ns

-17,815 (11)

7,824.84 (5.7)

IT

100

^189mPb

188.980807 (37)

1

m

-17,878 (34)

7,826.5 (1.8)

B+ ?

^190mPb

189.978082 (13)

150

ns

-20,417 (12)

7,841.13 (6.4)

IT

100

^191mPb

190.978265 (42)

2.18

m

-20,246 (39)

7,841.4 (2)

B+~100

^192mPb

191.975785 (14)

164

ns

-22,556 (13)

7,854.67 (6.6)

IT

100

^193mPb

192.976173 (53)

5.8

m

-22,194 (50)

7,853.9 (2.6)

B+

100

^195mPb

194.974542 (25)

15

m

-23,714 (23)

7,863.9 (1.2)

B+

100

^196mPb

195.972774 (15)

<1

us

-25,361 (14)

7,873.40 (7.3)

IT

100

^197mPb

196.9734311 (60)

43

m

-24,748.7 (5.6)

7,871.30 (2.8)

B+

81 2

^198mPb

197.972034 (16)

4.19

us

-26,050 (15)

7,878.88 (7.4)

IT

100

^199mPb

198.972917 (28)

12.2

m

-25,228 (26)

7,875.7 (1.3)

IT

93

^201mPb

200.972885 (24)

61

s

-25,258 (22)

7,877.8 (1.1)

IT>99

^202mPb

201.9721591 (88)

3.53

h

-25,933.6 (8.2)

7,882.12 (4)

IT

90.5 5

^203mPb

202.9733905 (70)

6.3

s

-24,786.6 (6.5)

7,877.40 (3.2)

IT

100

^204mPb

203.9730436 (13)

67.2

m

-25,109.7 (1.2)

7,879.931 (6)

IT

100

^205mPb

204.9744818 (13)

5.54

ms

-23,770.1 (1.2)

7,874.330 (6)

IT

100

^206mPb

205.9744653 (13)

125

us

-23,785.4 (1.2)

7,875.361 (6)

IT

100

^207mPb

206.9758969 (13)

806

ms

-22,451.9 (1.2)

7,869.865 (6)

IT

100

^208mPb

207.9766521 (13)

500

ns

-21,748.5 (1.2)

7,867.452 (6)

IT

100

^210mPb

209.9841885 (16)

201

ns

-14,728.3 (1.5)

7,835.964 (7)

IT

100

^212mPb

211.9918975 (24)

5

us

-7,547.4 (2.2)

7,804.31 (1)

IT

100

^188m1Pb

187.980874 (11)

94

ns

-17,815 (11)

7,824.84 (5.7)

IT

100

^190m1Pb

189.978082 (13)

25

us

-20,417 (12)

7,841.13 (6.4)

IT ?

^192m1Pb

191.975785 (14)

1.1

us

-22,556 (13)

7,854.67 (6.6)

IT

100

^197m1Pb

196.9734311 (60)

1.15

us

-24,748.7 (5.6)

7,871.30 (2.8)

IT

100

^199m1Pb

198.972917 (28)

10.1

us

-25,228 (26)

7,875.7 (1.3)

IT

100

^203m1Pb

202.9733905 (70)

480

ms

-24,786.6 (6.5)

7,877.40 (3.2)

IT

100

^205m1Pb

204.9744818 (13)

217

ns

-23,770.1 (1.2)

7,874.330 (6)

IT

100

^206m1Pb

205.9744653 (13)

202

ns

-23,785.4 (1.2)

7,875.361 (6)

IT

100

^188m2Pb

187.980874 (11)

797

ns

-17,815 (11)

7,824.84 (5.7)

IT

100

^190m2Pb

189.978082 (13)

7.2

us

-20,417 (12)

7,841.13 (6.4)

IT

100

^192m2Pb

191.975785 (14)

756

ns

-22,556 (13)

7,854.67 (6.6)

IT

100