Lead: Properties: Isotopes

Lead: Properties

Isotopes

Natural
Abun. (%) Atomic
Mass Half-
life Decay Mode
/Energy (/MeV) Part. En.
/Intensity
(MeV/%) Cross-sect.
Ther. Neut.
(b) Spin
(h/2 pi) Magnetic
Dipl.Mom.
(nm) Electric
Quad. Mom.
(b) Gamma En.
/Intensity
(MeV/%)
¹⁸²Pb 181.99263 0.06s alpha
¹⁸³Pb 182.99171 0.3s alpha 1/2⁺
¹⁸⁴Pb 183.98812 0.6s alpha 6.63 0⁺
¹⁸⁵Pb 184.98749 4.1s alpha 6.34
6.4
6.48
¹⁸⁶Pb 185.9843 5s ß⁺,E.C./ 5.4
alpha
6.32 0⁺
^187mPb 18.3s E.C./ 7.3
alpha
6.08 13/2⁺ 0.193
0.3314
0.3435
0.3934
¹⁸⁷Pb 186.98383 15.2s ß⁺,E.C. 5.99
6.19 1/2^- 0.0674
0.208
0.2755
0.2995
0.4487
0.7477
¹⁸⁸Pb 187.98097 23s E.C./ 4.7
alpha
5.98 0⁺ 0.185
0.7582
¹⁸⁹Pb 188.98078 51s E.C./ 6.6
alpha
5.58
¹⁹⁰Pb 189.97807 1.2m ß⁺/ 4.1
E.C.,alpha
5.58 0⁺ rad. an.
Tl k x rays
0.1415
0.1512
0.9422
^191mPb 2.2m ß⁺,E.C. 13/2⁺ rad. an.
0.3871
0.6135
0.7122
¹⁹¹Pb 190.97816 1.3m ß⁺,E.C./ 5.9 rad. an.
0.9368
¹⁹²Pb 191.97579 3.5m ß⁺,E.C./ 3.4 0⁺ rad. an.
0.1675
0.6082
1.1954
^193mPb 5.8m ß⁺,E.C. 13/2⁺ rad. an.
0.3654
0.3922
¹⁹³Pb 192.97612 2m E.C./ 5.2 3/2⁺
¹⁹⁴Pb 193.97398 11m ß⁺,E.C./ 2.8 0⁺ rad. an.
0.2036
^195mPb 15m ß⁺,E.C. 13/2⁺ -1.132 nm 0.29 b rad. an.
Tl k x rays
0.3836
0.3942
0.8784
¹⁹⁵Pb 194.97448 15m ß⁺,E.C./ 4.5 rad. an.
0.3836
0.3937
0.7776
¹⁹⁶Pb 195.97268 37m ß⁺,E.C./ 2.1 0⁺ Tl k x rays
0.2531
0.5021
^197mPb 43m E.C.,ß⁺,I.T./ 0.3193 13/2⁺ -1.105 nm 0.5 b Tl k x rays
0.3079
0.3877
0.7743
0.2 - 2.2
¹⁹⁷Pb 196.97336 8m E.C./ 3.6
ß⁺ 3/2^- -1.075 nm -0.08 b Tl k x rays
0.3755
0.3858
0.7611
¹⁹⁸Pb 197.97196 2.4h E.C./ 1.4 0⁺ Tl k x rays
0.1734
0.2903
0.3654
^199mPb 12.2m I.T./ 0.4248
ß⁺,E.C. 13/2⁺ -1.074 nm 0.08 b Pb k x rays
0.4255
¹⁹⁹Pb 198.97287 1.5h E.C./ 2.9
ß⁺ 5/2^- Tl k x rays
0.3534
0.7202
1.135
0.22 - 2.4
²⁰⁰Pb 199.97179 21.5h E.C./ 0.8 0⁺ Tl k x rays
0.14763
^201mPb 1.02m I.T./ 0.6291 13/2⁺ Pb k x rays
0.6288
²⁰¹Pb 200.97283 9.33h E.C./ 1.9 5/2^- 0.675 nm -0.009 b Tl k x rays
0.3312
0.36131
0.11 - 1.8
^102mPb 3.53h I.T./ 2.17
ß⁺ 9^- -0.228 nm 0.58 b Pb k x rays
Tl k x rays
0.42219
0.787
0.96271
²⁰²Pb 201.972134 5.3x10⁴y E.C./ 0.05 0⁺ Tl k x rays
^203mPb 6.2s I.T./ 0.8252 13/2⁺ Pb k x rays
0.8203
0.8252
²⁰³Pb 202.973365 2.1615d E.C./ 0.97 5/2^- 0.686 nm 0.1 b Tl k x rays
0.27919
^204mPb 1.12h I.T./ 2.185 9^- Pb k x rays
0.37481
0.89922
0.91175
²⁰⁴Pb 1.4 % 203.97302 0.68 b 0⁺
²⁰⁵Pb 204.974458 1.51x10⁷y E.C./ 0.053 5 b 5/2^- 0.712 nm 0.23 b Tl k x rays
²⁰⁶Pb 24.1 % 205.97444 0.03 b 0⁺
^207mPb 0.8s I.T./ 1.632 13/2⁺ Pb k x rays
0.56915
1.0631
²⁰⁷Pb 22.1 % 206.975872 0.7 b 1/2^- 0.59258 nm
²⁰⁸Pb 52.4 % 207.976627 0.00049 b 0⁺
²⁰⁹Pb 208.981065 3.25h ß^-/ 0.644 0.645/ 100 9/2⁺ -1.474 nm -0.3 b
²¹⁰Pb 209.984163 22.6y ß^-/ 0.063 0.017/ 81
0.061/ 19 0⁺
²¹¹Pb 210.988735 36.1m ß^-/ 1.3 0.57/ 5
1.36/ 92 9/2⁺ -1.404 nm 0.09 b 0.40486
0.427
0.73186
0.09 - 1.27
²¹²Pb 211.991871 10.64h ß^-/ 0.571 0.28/ 83
0.57/ 12 0⁺ Bi k x rays
0.23858
²¹³Pb 212.99651 10.2m ß^-/ 2
²¹⁴Pb 213.999798 27m ß^-/ 1.03 0.67/ 48
0.73/ 42 0⁺ Bi k x rays
0.24192
0.29509
0.35187

	Natural Abun. (%)	Atomic Mass	Half- life	Decay Mode /Energy (/MeV)	Part. En. /Intensity (MeV/%)	Cross-sect. Ther. Neut. (b)	Spin (h/2 pi)	Magnetic Dipl.Mom. (nm)	Electric Quad. Mom. (b)	Gamma En. /Intensity (MeV/%)
¹⁸²Pb		181.99263	0.06s	alpha
¹⁸³Pb		182.99171	0.3s	alpha			1/2⁺
¹⁸⁴Pb		183.98812	0.6s	alpha	6.63		0⁺
¹⁸⁵Pb		184.98749	4.1s	alpha	6.34 6.4 6.48
¹⁸⁶Pb		185.9843	5s	ß⁺,E.C./ 5.4 alpha	6.32		0⁺
^187mPb			18.3s	E.C./ 7.3 alpha	6.08		13/2⁺			0.193 0.3314 0.3435 0.3934
¹⁸⁷Pb		186.98383	15.2s	ß⁺,E.C.	5.99 6.19		1/2^-			0.0674 0.208 0.2755 0.2995 0.4487 0.7477
¹⁸⁸Pb		187.98097	23s	E.C./ 4.7 alpha	5.98		0⁺			0.185 0.7582
¹⁸⁹Pb		188.98078	51s	E.C./ 6.6 alpha	5.58
¹⁹⁰Pb		189.97807	1.2m	ß⁺/ 4.1 E.C.,alpha	5.58		0⁺			rad. an. Tl k x rays 0.1415 0.1512 0.9422
^191mPb			2.2m	ß⁺,E.C.			13/2⁺			rad. an. 0.3871 0.6135 0.7122
¹⁹¹Pb		190.97816	1.3m	ß⁺,E.C./ 5.9						rad. an. 0.9368
¹⁹²Pb		191.97579	3.5m	ß⁺,E.C./ 3.4			0⁺			rad. an. 0.1675 0.6082 1.1954
^193mPb			5.8m	ß⁺,E.C.			13/2⁺			rad. an. 0.3654 0.3922
¹⁹³Pb		192.97612	2m	E.C./ 5.2			3/2⁺
¹⁹⁴Pb		193.97398	11m	ß⁺,E.C./ 2.8			0⁺			rad. an. 0.2036
^195mPb			15m	ß⁺,E.C.			13/2⁺	-1.132 nm	0.29 b	rad. an. Tl k x rays 0.3836 0.3942 0.8784
¹⁹⁵Pb		194.97448	15m	ß⁺,E.C./ 4.5						rad. an. 0.3836 0.3937 0.7776
¹⁹⁶Pb		195.97268	37m	ß⁺,E.C./ 2.1			0⁺			Tl k x rays 0.2531 0.5021
^197mPb			43m	E.C.,ß⁺,I.T./ 0.3193			13/2⁺	-1.105 nm	0.5 b	Tl k x rays 0.3079 0.3877 0.7743 0.2 - 2.2
¹⁹⁷Pb		196.97336	8m	E.C./ 3.6 ß⁺			3/2^-	-1.075 nm	-0.08 b	Tl k x rays 0.3755 0.3858 0.7611
¹⁹⁸Pb		197.97196	2.4h	E.C./ 1.4			0⁺			Tl k x rays 0.1734 0.2903 0.3654
^199mPb			12.2m	I.T./ 0.4248 ß⁺,E.C.			13/2⁺	-1.074 nm	0.08 b	Pb k x rays 0.4255
¹⁹⁹Pb		198.97287	1.5h	E.C./ 2.9 ß⁺			5/2^-			Tl k x rays 0.3534 0.7202 1.135 0.22 - 2.4
²⁰⁰Pb		199.97179	21.5h	E.C./ 0.8			0⁺			Tl k x rays 0.14763
^201mPb			1.02m	I.T./ 0.6291			13/2⁺			Pb k x rays 0.6288
²⁰¹Pb		200.97283	9.33h	E.C./ 1.9			5/2^-	0.675 nm	-0.009 b	Tl k x rays 0.3312 0.36131 0.11 - 1.8
^102mPb			3.53h	I.T./ 2.17 ß⁺			9^-	-0.228 nm	0.58 b	Pb k x rays Tl k x rays 0.42219 0.787 0.96271
²⁰²Pb		201.972134	5.3x10⁴y	E.C./ 0.05			0⁺			Tl k x rays
^203mPb			6.2s	I.T./ 0.8252			13/2⁺			Pb k x rays 0.8203 0.8252
²⁰³Pb		202.973365	2.1615d	E.C./ 0.97			5/2^-	0.686 nm	0.1 b	Tl k x rays 0.27919
^204mPb			1.12h	I.T./ 2.185			9^-			Pb k x rays 0.37481 0.89922 0.91175
²⁰⁴Pb	1.4 %	203.97302				0.68 b	0⁺
²⁰⁵Pb		204.974458	1.51x10⁷y	E.C./ 0.053		5 b	5/2^-	0.712 nm	0.23 b	Tl k x rays
²⁰⁶Pb	24.1 %	205.97444				0.03 b	0⁺
^207mPb			0.8s	I.T./ 1.632			13/2⁺			Pb k x rays 0.56915 1.0631
²⁰⁷Pb	22.1 %	206.975872				0.7 b	1/2^-	0.59258 nm
²⁰⁸Pb	52.4 %	207.976627				0.00049 b	0⁺
²⁰⁹Pb		208.981065	3.25h	ß^-/ 0.644	0.645/ 100		9/2⁺	-1.474 nm	-0.3 b
²¹⁰Pb		209.984163	22.6y	ß^-/ 0.063	0.017/ 81 0.061/ 19		0⁺
²¹¹Pb		210.988735	36.1m	ß^-/ 1.3	0.57/ 5 1.36/ 92		9/2⁺	-1.404 nm	0.09 b	0.40486 0.427 0.73186 0.09 - 1.27
²¹²Pb		211.991871	10.64h	ß^-/ 0.571	0.28/ 83 0.57/ 12		0⁺			Bi k x rays 0.23858
²¹³Pb		212.99651	10.2m	ß^-/ 2
²¹⁴Pb		213.999798	27m	ß^-/ 1.03	0.67/ 48 0.73/ 42		0⁺			Bi k x rays 0.24192 0.29509 0.35187