Iodine: Properties: Isotopes

Iodine: 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/%)
¹⁰⁹I 108.93805 0.11ms p
¹¹⁰I 109.93506 0.65s ß⁺,E.C./ 11.8
alpha rad. an.
¹¹¹I 110.93025 2.5s ß⁺,E.C./ 8.4 rad. an.
0.2665
0.3215
0.3412
¹¹²I 111.92794 3.4s ß⁺,E.C./ 10.2 rad. an.
0.6889
0.7869
¹¹³I 112.92365 5.9s ß⁺,E.C./ 7.2 rad. an.
0.4625/ 100
0.6224/ 74
0.055 - 1.422
¹¹⁴I 113.92179 2.1s ß⁺,E.C./ 9 rad. an.
0.6826
0.7088
¹¹⁵I 114.91809 1.3m ß⁺,E.C./ 6 5/2⁺ rad. an.
0.275
0.284
0.46
0.709
¹¹⁶I 115.91678 2.9s ß⁺/ 7.7
E.C. 6.7 1⁺ rad. an.
0.5402
0.6789
¹¹⁷I 116.91346 2.22m ß⁺,E.C./ 4.5 3.2 5/2⁺ 3.1 nm rad. an.
0.2744
0.3259
^118mI 8.5m ß⁺,E.C.,I.T. 4.9 7^- 4.2 nm rad. an.
0.104
0.5998
0.6052
0.6138
¹¹⁸I 117.91278 14m ß⁺,E.C./ 6.6 2^- 2 nm rad. an.
0.5448
0.6052
1.3384
¹¹⁹I 118.91003 19m ß⁺/ 3.4
E.C. 2.4 5/2⁺ 2.9 nm rad. an.
Te k x rays
0.2575
^120mI 53m ß⁺,E.C. 3.8 4.2 nm rad. an.
Te k x rays
0.4257
0.5604
0.6147
1.3459
¹²⁰I 119.90984 1.35h ß⁺/ 5.62
E.C. 4.03
4.6 2^- 1.23 nm rad. an.
Te k x rays
0.5304
0.6411
1.523
0.43 - 3.1
¹²¹I 120.907394 2.12h ß⁺/ 2.28
E.C. 1.2 5/2⁺ 2.3 nm rad. an.
Te k x rays
0.2122
0.14 - 1.1
¹²²I 121.907595 3.6m ß⁺/ 4.23
E.C. 3.1 1⁺ 0.94 nm rad. an.
Te k x rays
0.5641
¹²³I 122.905594 13.2h E.C./ 1.234 5/2⁺ 2.82 nm Te k x rays
0.159
¹²⁴I 123.906207 4.18d ß⁺/ 3.157
E.C. 1.53
2.14 2^- 1.1 nm rad. an.
Te k x rays
0.6027
0.7228
1.691
¹²⁵I 124.90462 59.4d E.C./ 0.179 900 b 5/2⁺ 2.82 nm -0.89 b Te k x rays
0.0355
¹²⁶I 125.905624 13d E.C.,ß⁺/ 2.151
ß^-/ 1.26
1.13
0.87
1.25 1x10⁴ b 2^- rad. an.
Te k x rays
0.3887
0.6622
¹²⁷I 100 % 126.904473 6.15 b 5/2⁺ 2.8133 nm -0.79 b
¹²⁸I 127.90581 25m ß^-/ 2.125
E.C./ 1.256 2.13 22 b 1⁺ Te k x rays
0.44287
0.52658
¹²⁹I 128.904986 1.7x10⁷y ß^-/ 0.191 0.15 31 b 7/2⁺ 2.621 nm -0.55 b Xe k x rays
0.0396
^130mI 9m I.T./ 0.048
ß^- 2⁺ I k x rays
0.5361
¹³⁰I 129.906713 12.36h ß^-/ 2.98 1.04
0.62 18 b 5⁺ 0.418
0.5361
0.6685
0.7395
¹³¹I 130.906114 8.04d ß^-/ 0.971 0.606 0.7 b 7/2⁺ 2.742 nm -0.4 b 0.08017
0.28431
0.36446
0.63699
^132mI 1.39h I.T. 8^-
¹³²I 131.90798 2.28h ß^-/ 3.58
I.T. 0.8
1.03
1.2
1.6
2.16 4⁺ 3.09 nm 0.09 b I k x rays
0.098
0.5059
0.52264
0.63019
0.6506
0.66768
0.7726
0.95457
^133mI 9s I.T./ 1.63 19/2^- I k x rays
0.073
0.6474
0.9126
¹³³I 132.90778 20.8h ß^-/ 1.77 1.24/ 85 7/2⁺ 2.86 nm -0.27 b 0.51056
0.52989
0.87537
^134mI 3.7m I.T./ 0.316
ß^- 8^- I k x rays
0.0444
0.2719
¹³⁴I 133.90985 52.6m ß^-/ 4.1 1.2 4⁺ 0.1354
0.84702
0.88409
¹³⁵I 134.910023 6.57h ß^-/ 2.68 0.9
1.3 7/2⁺ 0.2884
0.41768
0.52658
1.2156
1.26046
^136mI 47s ß^- 4.7
5.2 6^- 0.1973
0.3468
0.3701
0.3814
1.313
0.16 - 2.36
¹³⁶I 135.91465 1.39m ß^-/ 6.88 4.3
5.6 2^- 0.3447
1.313
1.3211
2.2896
0.3 - 6.1
¹³⁷I 136.91787 24.5s ß^-/ 5.88 5 7/2⁺ 0.601
1.218
1.2201
1.3026
1.5343
0.25 - 4.4
¹³⁸I 137.92237 6.5s ß^-/ 7.8 6.9
7.4 2^- 0.4836
0.5888
0.8752
0.4 - 5.3
¹³⁹I 138.92605 2.3s ß^-/ 6.8
n 0.192
0.198
0.273
0.382
0.386
0.468
0.683
1.313
¹⁴⁰I 139.93102 0.86s ß^-/ 8.7
n 3⁺ 0.372
0.377
0.457
¹⁴¹I 0.45s ß^-
¹⁴²I 0.2s ß^-

	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/%)
¹⁰⁹I		108.93805	0.11ms	p
¹¹⁰I		109.93506	0.65s	ß⁺,E.C./ 11.8 alpha						rad. an.
¹¹¹I		110.93025	2.5s	ß⁺,E.C./ 8.4						rad. an. 0.2665 0.3215 0.3412
¹¹²I		111.92794	3.4s	ß⁺,E.C./ 10.2						rad. an. 0.6889 0.7869
¹¹³I		112.92365	5.9s	ß⁺,E.C./ 7.2						rad. an. 0.4625/ 100 0.6224/ 74 0.055 - 1.422
¹¹⁴I		113.92179	2.1s	ß⁺,E.C./ 9						rad. an. 0.6826 0.7088
¹¹⁵I		114.91809	1.3m	ß⁺,E.C./ 6			5/2⁺			rad. an. 0.275 0.284 0.46 0.709
¹¹⁶I		115.91678	2.9s	ß⁺/ 7.7 E.C.	6.7		1⁺			rad. an. 0.5402 0.6789
¹¹⁷I		116.91346	2.22m	ß⁺,E.C./ 4.5	3.2		5/2⁺	3.1 nm		rad. an. 0.2744 0.3259
^118mI			8.5m	ß⁺,E.C.,I.T.	4.9		7^-	4.2 nm		rad. an. 0.104 0.5998 0.6052 0.6138
¹¹⁸I		117.91278	14m	ß⁺,E.C./ 6.6			2^-	2 nm		rad. an. 0.5448 0.6052 1.3384
¹¹⁹I		118.91003	19m	ß⁺/ 3.4 E.C.	2.4		5/2⁺	2.9 nm		rad. an. Te k x rays 0.2575
^120mI			53m	ß⁺,E.C.	3.8			4.2 nm		rad. an. Te k x rays 0.4257 0.5604 0.6147 1.3459
¹²⁰I		119.90984	1.35h	ß⁺/ 5.62 E.C.	4.03 4.6		2^-	1.23 nm		rad. an. Te k x rays 0.5304 0.6411 1.523 0.43 - 3.1
¹²¹I		120.907394	2.12h	ß⁺/ 2.28 E.C.	1.2		5/2⁺	2.3 nm		rad. an. Te k x rays 0.2122 0.14 - 1.1
¹²²I		121.907595	3.6m	ß⁺/ 4.23 E.C.	3.1		1⁺	0.94 nm		rad. an. Te k x rays 0.5641
¹²³I		122.905594	13.2h	E.C./ 1.234			5/2⁺	2.82 nm		Te k x rays 0.159
¹²⁴I		123.906207	4.18d	ß⁺/ 3.157 E.C.	1.53 2.14		2^-	1.1 nm		rad. an. Te k x rays 0.6027 0.7228 1.691
¹²⁵I		124.90462	59.4d	E.C./ 0.179		900 b	5/2⁺	2.82 nm	-0.89 b	Te k x rays 0.0355
¹²⁶I		125.905624	13d	E.C.,ß⁺/ 2.151 ß^-/ 1.26	1.13 0.87 1.25	1x10⁴ b	2^-			rad. an. Te k x rays 0.3887 0.6622
¹²⁷I	100 %	126.904473				6.15 b	5/2⁺	2.8133 nm	-0.79 b
¹²⁸I		127.90581	25m	ß^-/ 2.125 E.C./ 1.256	2.13	22 b	1⁺			Te k x rays 0.44287 0.52658
¹²⁹I		128.904986	1.7x10⁷y	ß^-/ 0.191	0.15	31 b	7/2⁺	2.621 nm	-0.55 b	Xe k x rays 0.0396
^130mI			9m	I.T./ 0.048 ß^-			2⁺			I k x rays 0.5361
¹³⁰I		129.906713	12.36h	ß^-/ 2.98	1.04 0.62	18 b	5⁺			0.418 0.5361 0.6685 0.7395
¹³¹I		130.906114	8.04d	ß^-/ 0.971	0.606	0.7 b	7/2⁺	2.742 nm	-0.4 b	0.08017 0.28431 0.36446 0.63699
^132mI			1.39h	I.T.			8^-
¹³²I		131.90798	2.28h	ß^-/ 3.58 I.T.	0.8 1.03 1.2 1.6 2.16		4⁺	3.09 nm	0.09 b	I k x rays 0.098 0.5059 0.52264 0.63019 0.6506 0.66768 0.7726 0.95457
^133mI			9s	I.T./ 1.63			19/2^-			I k x rays 0.073 0.6474 0.9126
¹³³I		132.90778	20.8h	ß^-/ 1.77	1.24/ 85		7/2⁺	2.86 nm	-0.27 b	0.51056 0.52989 0.87537
^134mI			3.7m	I.T./ 0.316 ß^-			8^-			I k x rays 0.0444 0.2719
¹³⁴I		133.90985	52.6m	ß^-/ 4.1	1.2		4⁺			0.1354 0.84702 0.88409
¹³⁵I		134.910023	6.57h	ß^-/ 2.68	0.9 1.3		7/2⁺			0.2884 0.41768 0.52658 1.2156 1.26046
^136mI			47s	ß^-	4.7 5.2		6^-			0.1973 0.3468 0.3701 0.3814 1.313 0.16 - 2.36
¹³⁶I		135.91465	1.39m	ß^-/ 6.88	4.3 5.6		2^-			0.3447 1.313 1.3211 2.2896 0.3 - 6.1
¹³⁷I		136.91787	24.5s	ß^-/ 5.88	5		7/2⁺			0.601 1.218 1.2201 1.3026 1.5343 0.25 - 4.4
¹³⁸I		137.92237	6.5s	ß^-/ 7.8	6.9 7.4		2^-			0.4836 0.5888 0.8752 0.4 - 5.3
¹³⁹I		138.92605	2.3s	ß^-/ 6.8 n						0.192 0.198 0.273 0.382 0.386 0.468 0.683 1.313
¹⁴⁰I		139.93102	0.86s	ß^-/ 8.7 n			3⁺			0.372 0.377 0.457
¹⁴¹I			0.45s	ß^-
¹⁴²I			0.2s	ß^-