Isotopes of Thallium

List of known isotopes of the element Thallium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
¹⁷⁶Tl	5.2 ± ms	syn.	(3- 4- 5-)	—	1.76·10⁸ ±89.16 keV/c²	2004
¹⁷⁷Tl	18 ±5 ms	syn.	(1/2+)	—	1.769·10⁸ ±23.21 keV/c²	1999
¹⁷⁸Tl	254 ± ms	syn.	—	—	1.779·10⁸ ±110 keV/c²	1997
¹⁷⁹Tl	0.23 ±4 s	syn.	(1/2+)	—	1.789·10⁸ ±41.49 keV/c²	1983
¹⁸⁰Tl	1.09 ±1 s	syn.	(5-)	—	1.799·10⁸ ±75.05 keV/c²	1987
¹⁸¹Tl	3.2 ±3 s	syn.	(1/2+)	—	1.809·10⁸ ±9.771 keV/c²	1996
¹⁸²Tl	3.1 ±10 s	syn.	(7+)	—	1.819·10⁸ ±12.85 keV/c²	1991
¹⁸³Tl	6.9 ±7 s	syn.	(1/2+)	—	1.829·10⁸ ±10.01 keV/c²	1980
¹⁸⁴Tl	10.1 ±5 s	syn.	—	—	1.839·10⁸ ±10.74 keV/c²	1976
¹⁸⁵Tl	19.5 ±5 s	syn.	(1/2+)	—	1.849·10⁸ ±22.19 keV/c²	1976
¹⁸⁶Tl	3.4 ± s	syn.	(2-)	—	1.859·10⁸ ±22.27 keV/c²	1975
¹⁸⁷Tl	51 s	syn.	(1/2+)	—	1.869·10⁸ ±8.64 keV/c²	1976
¹⁸⁸Tl	71 ±2 s	syn.	(2-)	5.401 ±0.0072 fm	1.879·10⁸ ±32.1 keV/c²	1970
¹⁸⁹Tl	2.3 ±2 m	syn.	(1/2+)	—	1.889·10⁸ ±8.983 keV/c²	1972
¹⁹⁰Tl	2.6 ±3 m	syn.	2-	5.412 ±0.0056 fm	1.899·10⁸ ±7.784 keV/c²	1970
¹⁹¹Tl	stab.	syn.	(1/2+)	5.416 ±0.0048 fm	1.909·10⁸ ±7.889 keV/c²	1974
¹⁹²Tl	9.6 ±4 m	syn.	(2-)	5.419 ±0.0051 fm	1.919·10⁸ ±34 keV/c²	1961
¹⁹³Tl	21.6 ±8 m	syn.	1/2(+)	5.424 ±0.0042 fm	1.929·10⁸ ±7.2 keV/c²	1960
¹⁹⁴Tl	33 ±5 m	syn.	2-	5.425 ±0.0046 fm	1.939·10⁸ ±15 keV/c²	1960
¹⁹⁵Tl	1.16 ±5 h	syn.	1/2+	5.432 ±0.0039 fm	1.949·10⁸ ±11.94 keV/c²	1955
¹⁹⁶Tl	1.84 ±3 h	syn.	2-	5.432 ±0.0042 fm	1.959·10⁸ ±13 keV/c²	1955
¹⁹⁷Tl	2.84 ±4 h	syn.	1/2+	5.438 ±0.0036 fm	1.969·10⁸ ±14.57 keV/c²	1955
¹⁹⁸Tl	5.3 ±5 h	syn.	2-	5.439 ±0.0036 fm	1.979·10⁸ ±8.1 keV/c²	1949
¹⁹⁹Tl	7.42 ±8 h	syn.	1/2+	5.447 ±0.0031 fm	1.989·10⁸ ±30 keV/c²	1949
²⁰⁰Tl	26.1 ±1 h	syn.	2-	5.449 ±0.0031 fm	1.999·10⁸ ±6.182 keV/c²	1949
²⁰¹Tl	3.042 ±16 d	syn.	1/2+	5.457 ±0.0029 fm	2.009·10⁸ ±15.22 keV/c²	1950
²⁰²Tl	12.31 ±8 d	syn.	2-	5.459 ±0.0027 fm	2.019·10⁸ ±1.972 keV/c²	1940
²⁰³Tl	stab.	29.51 ±0.044 %	1/2+	5.466 ±0.0027 fm	2.029·10⁸ ±1.257 keV/c²	1931
²⁰⁴Tl	3.783 ±12 a	syn.	2-	5.47 ±0.0028 fm	2.039·10⁸ ±1.238 keV/c²	1953
²⁰⁵Tl	stab.	70.48 ±0.044 %	1/2+	5.475 ±0.0026 fm	2.049·10⁸ ±1.33 keV/c²	1931
²⁰⁶Tl	4.202 ±11 m	syn.	0-	—	2.059·10⁸ ±1.38 keV/c²	1935
²⁰⁷Tl	4.77 ±3 m	syn.	1/2+	5.485 ±0.0027 fm	2.069·10⁸ ±5.839 keV/c²	1908
²⁰⁸Tl	3.053 ±4 m	syn.	5+	5.494 ±0.0028 fm	2.079·10⁸ ±1.989 keV/c²	1909
²⁰⁹Tl	2.162 ±7 m	syn.	1/2+	—	2.089·10⁸ ±6.559 keV/c²	1950
²¹⁰Tl	1.3 ±3 m	syn.	(5+)	—	2.099·10⁸ ±12.45 keV/c²	1909
²¹¹Tl	88 ± s	syn.	—	—	2.109·10⁸ ±45 keV/c²	1998
²¹²Tl	30.9 ±80 s	syn.	(5+)	—	2.119·10⁸ ±215 keV/c²	1998
²¹³Tl	23.8 ±44 s	syn.	(1/2+)	—	2.13·10⁸ ±29 keV/c²	2010
²¹⁴Tl	11 ±24 s	syn.	—	—	2.14·10⁸ ±210 keV/c²	2010
²¹⁵Tl	9.7 ±38 s	syn.	—	—	2.15·10⁸ ±322 keV/c²	2010
²¹⁶Tl	300 ns	syn.	—	—	2.16·10⁸ ±322 keV/c²	2010
²¹⁷Tl	stab.	syn.	—	—	2.17·10⁸ ±429 keV/c²	2010

176TlThallium-176

Classification	z: 81; n: 95; m: 176
Half life	5.2 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(3- 4- 5-)
Decay modes	proton emission
Discovery	2004
Mass excess	584.7 ±83.05 keV
Binding energy	7,707 ±0.4719 keV
Single-particle energy	-1,266 ±18 keV
Q value for electron capture	12,360 ±83.79 keV

Point at nuclide Decay chain of Thallium-176

177TlThallium-177

Classification	z: 81; n: 96; m: 177
Half life	18 ±5 ms
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	α decay; proton emission
Discovery	1999
Mass excess	-3,341 ±21.62 keV
Binding energy	7,732 ±0.1222 keV
Single-particle energy	-1,156 ±19.42 keV
Neutron separation energy	11,990 ±85.82 keV
Q value for electron capture	9,435 ±87.43 keV

Point at nuclide Decay chain of Thallium-177

178TlThallium-178

Classification	z: 81; n: 97; m: 178
Half life	254 ± ms
Natural abundance	synthetic nuclide
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1997
Mass excess	-4,613 ±102 keV
Binding energy	7,741 ±1 keV
Single-particle energy	-874 ±133 keV
Neutron separation energy	9,344 ±104 keV
Q value for electron capture	11,700 ±102.5 keV
β⁻ decay energy	-8,187 ±103 keV

Point at nuclide Decay chain of Thallium-178

179TlThallium-179

Classification	z: 81; n: 98; m: 179
Half life	0.23 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	α decay; electron capture + β⁺ decay; proton emission
Discovery	1983
Mass excess	-8,270 ±38.65 keV
Binding energy	7,763 ±0.2159 keV
Single-particle energy	-756.8 ±40.12 keV
Neutron separation energy	11,720 ±109 keV
Q value for electron capture	8,663 ±47.8 keV
β⁻ decay energy	-10,330 ±89.95 keV
β⁻ decay energy with neutron	-19,920 ±45.07 keV
Magnetic dipole moment	1.631 ±0.016 μN

Point at nuclide Decay chain of Thallium-179

180TlThallium-180

Classification	z: 81; n: 99; m: 180
Half life	1.09 ±1 s
Natural abundance	synthetic nuclide
Spin/parity	(5-)
Decay modes	electron capture + β⁺ decay; α decay; electron capture + spontaneous fission
Discovery	1987
Mass excess	-9,391 ±69.91 keV
Binding energy	7,771 ±0.3884 keV
Single-particle energy	-253.6 ±75.35 keV
Neutron separation energy	9,192 ±79.88 keV
Q value for electron capture	10,860 ±71.05 keV
β⁻ decay energy	-7,450 ±71 keV
β⁻ decay energy with neutron	-19,520 ±107.1 keV
Magnetic dipole moment	-0.56 ±0.02 μN

Point at nuclide Decay chain of Thallium-180

181TlThallium-181

Classification	z: 81; n: 100; m: 181
Half life	3.2 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	α decay
Discovery	1996
Mass excess	-12,800 ±9.102 keV
Binding energy	7,791 ±0.0503 keV
Single-particle energy	-162.8 ±13.7 keV
Neutron separation energy	11,470 ±70.5 keV
Q value for electron capture	7,862 ±17.87 keV
β⁻ decay energy	-9,689 ±85.52 keV
β⁻ decay energy with neutron	-18,930 ±15.37 keV
Magnetic dipole moment	1.632 ±0.014 μN

Point at nuclide Decay chain of Thallium-181

182TlThallium-182

Classification	z: 81; n: 101; m: 182
Half life	3.1 ±10 s
Natural abundance	synthetic nuclide
Spin/parity	(7+)
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1991
Mass excess	-13,330 ±11.97 keV
Binding energy	7,796 ±0.0658 keV
Single-particle energy	-44.95 ±19.49 keV
Neutron separation energy	8,599 ±15.04 keV
Q value for electron capture	10,240 ±15.46 keV
β⁻ decay energy	-6,503 ±17.01 keV
β⁻ decay energy with neutron	-18,290 ±85.87 keV
Magnetic dipole moment	0.54 ±0.1 μN

Point at nuclide Decay chain of Thallium-182

183TlThallium-183

Classification	z: 81; n: 102; m: 183
Half life	6.9 ±7 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1980
Mass excess	-16,590 ±9.331 keV
Binding energy	7,815 ±0.051 keV
Single-particle energy	299.3 ±13.52 keV
Neutron separation energy	11,330 ±15.18 keV
Q value for electron capture	7,217 ±11.71 keV
β⁻ decay energy	-9,008 ±30.44 keV
β⁻ decay energy with neutron	-17,840 ±15.26 keV
Magnetic dipole moment	3.61 ±0.06 μN

Point at nuclide Decay chain of Thallium-183

184TlThallium-184

Classification	z: 81; n: 103; m: 184
Half life	10.1 ±5 s
Natural abundance	synthetic nuclide
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1976
Mass excess	-16,890 ±10.01 keV
Binding energy	7,818 ±0.0544 keV
Single-particle energy	367.6 ±12.26 keV
Neutron separation energy	8,367 ±13.68 keV
Q value for electron capture	9,461 ±13.82 keV
β⁻ decay energy	-5,832 ±16.25 keV
β⁻ decay energy with neutron	-17,380 ±30.65 keV
Magnetic dipole moment	0.43 ±0.02 μN

Point at nuclide Decay chain of Thallium-184

185TlThallium-185

Classification	z: 81; n: 104; m: 185
Half life	19.5 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	electron capture + β⁺ decay
Discovery	1976
Mass excess	-19,760 ±20.67 keV
Binding energy	7,835 ±0.1118 keV
Single-particle energy	701.9 ±22.76 keV
Neutron separation energy	10,940 ±22.97 keV
Q value for electron capture	6,425 ±24.76 keV
β⁻ decay energy	-8,217 ±26.24 keV
β⁻ decay energy with neutron	-16,780 ±24.31 keV
Magnetic dipole moment	1.6 ±0.04 μN

Point at nuclide Decay chain of Thallium-185

186TlThallium-186

Classification	z: 81; n: 105; m: 186
Half life	3.4 ± s
Natural abundance	synthetic nuclide
Spin/parity	(2-)
Decay modes	α decay
Discovery	1975
Mass excess	-19,890 ±20.75 keV
Binding energy	7,837 ±0.1116 keV
Single-particle energy	988.2 ±24.83 keV
Neutron separation energy	8,196 ±29.29 keV
Q value for electron capture	8,656 ±23.79 keV
β⁻ decay energy	-5,203 ±23.48 keV
β⁻ decay energy with neutron	-16,420 ±26.3 keV

Point at nuclide Decay chain of Thallium-186

187TlThallium-187

Classification	z: 81; n: 106; m: 187
Half life	51 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1976
Mass excess	-22,450 ±8.048 keV
Binding energy	7,852 ±0.043 keV
Single-particle energy	1,194 ±14.16 keV
Neutron separation energy	10,630 ±22.25 keV
Q value for electron capture	5,673 ±15.17 keV
β⁻ decay energy	-7,458 ±9.524 keV
β⁻ decay energy with neutron	-15,840 ±13.63 keV
Magnetic dipole moment	1.54 ±0.06 μN

Point at nuclide Decay chain of Thallium-187

188TlThallium-188

Classification	z: 81; n: 107; m: 188
Half life	71 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(2-)
Decay modes	electron capture + β⁺ decay
Discovery	1970
Mass excess	-22,340 ±29.9 keV
Binding energy	7,853 ±0.1591 keV
Single-particle energy	1,506 ±32.55 keV
Neutron separation energy	7,963 ±30.96 keV
Q value for electron capture	7,861 ±30.66 keV
β⁻ decay energy	-4,526 ±31.57 keV
β⁻ decay energy with neutron	-15,430 ±30.33 keV
Magnetic dipole moment	0.481 ±0.008 μN

Point at nuclide Decay chain of Thallium-188

189TlThallium-189

Classification	z: 81; n: 108; m: 189
Half life	2.3 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	electron capture + β⁺ decay
Discovery	1972
Mass excess	-24,620 ±8.368 keV
Binding energy	7,866 ±0.0443 keV
Single-particle energy	1,706 ±10.77 keV
Neutron separation energy	10,350 ±31.05 keV
Q value for electron capture	5,010 ±32.64 keV
β⁻ decay energy	-6,773 ±16.36 keV
β⁻ decay energy with neutron	-14,880 ±13.13 keV

Point at nuclide Decay chain of Thallium-189

190TlThallium-190

Classification	z: 81; n: 109; m: 190
Half life	2.6 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	electron capture + β⁺ decay
Discovery	1970
Mass excess	-24,370 ±7.252 keV
Binding energy	7,866 ±0.0382 keV
Single-particle energy	2,028 ±32.37 keV
Neutron separation energy	7,821 ±11.07 keV
Q value for electron capture	7,004 ±17.48 keV
β⁻ decay energy	-3,950 ±14.46 keV
β⁻ decay energy with neutron	-14,600 ±15.82 keV
Magnetic dipole moment	0.253 ±0.002 μN

Point at nuclide Decay chain of Thallium-190

191TlThallium-191

Classification	z: 81; n: 110; m: 191
Half life	stable nuclide
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Discovery	1974
Mass excess	-26,290 ±7.349 keV
Binding energy	7,877 ±0.0385 keV
Single-particle energy	2,201 ±17.52 keV
Neutron separation energy	9,988 ±10.32 keV
Q value for electron capture	4,308 ±23.46 keV
β⁻ decay energy	-5,992 ±9.886 keV
β⁻ decay energy with neutron	-13,940 ±14.51 keV
Magnetic dipole moment	1.582 ±0.004 μN

Point at nuclide

192TlThallium-192

Classification	z: 81; n: 111; m: 192
Half life	9.6 ±4 m
Natural abundance	synthetic nuclide
Spin/parity	(2-)
Decay modes	electron capture + β⁺ decay
Discovery	1961
Mass excess	-25,880 ±31.67 keV
Binding energy	7,876 ±0.165 keV
Single-particle energy	2,569 ±38.72 keV
Neutron separation energy	7,660 ±32.51 keV
Q value for electron capture	6,139 ±35.27 keV
β⁻ decay energy	-3,321 ±32.18 keV
β⁻ decay energy with neutron	-13,660 ±32.35 keV
Magnetic dipole moment	0.199 ±0.003 μN

Point at nuclide Decay chain of Thallium-192

193TlThallium-193

Classification	z: 81; n: 112; m: 193
Half life	21.6 ±8 m
Natural abundance	synthetic nuclide
Spin/parity	1/2(+)
Decay modes	electron capture + β⁺ decay
Discovery	1960
Mass excess	-27,480 ±6.707 keV
Binding energy	7,885 ±0.0348 keV
Single-particle energy	2,754 ±16.92 keV
Neutron separation energy	9,676 ±32.37 keV
Q value for electron capture	3,584 ±16.89 keV
β⁻ decay energy	-5,248 ±12.28 keV
β⁻ decay energy with neutron	-13,000 ±8.818 keV
Magnetic dipole moment	1.585 ±0.003 μN
Electric quadrupole moment	-2.2 ±0.02 b

Point at nuclide Decay chain of Thallium-193

194TlThallium-194

Classification	z: 81; n: 113; m: 194
Half life	33 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1960
Mass excess	-26,940 ±13.97 keV
Binding energy	7,883 ±0.072 keV
Single-particle energy	3,164 ±20.87 keV
Neutron separation energy	7,531 ±15.49 keV
Q value for electron capture	5,246 ±14.26 keV
β⁻ decay energy	-2,730 ±22.34 keV
β⁻ decay energy with neutron	-12,780 ±17.35 keV
Magnetic dipole moment	0.139 ±0.003 μN
Electric quadrupole moment	-0.282 ±0.007 b

Point at nuclide Decay chain of Thallium-194

195TlThallium-195

Classification	z: 81; n: 114; m: 195
Half life	1.16 ±5 h
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	electron capture + β⁺ decay
Discovery	1955
Mass excess	-28,160 ±11.12 keV
Binding energy	7,890 ±0.0571 keV
Single-particle energy	3,260 ±11.49 keV
Neutron separation energy	9,289 ±17.86 keV
Q value for electron capture	2,858 ±25.67 keV
β⁻ decay energy	-4,418 ±12.23 keV
β⁻ decay energy with neutron	-12,020 ±20.67 keV
Magnetic dipole moment	1.57 ±0.04 μN

Point at nuclide Decay chain of Thallium-195

196TlThallium-196

Classification	z: 81; n: 115; m: 196
Half life	1.84 ±3 h
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	electron capture + β⁺ decay
Discovery	1955
Mass excess	-27,500 ±12.1 keV
Binding energy	7,888 ±0.0618 keV
Single-particle energy	3,772 ±26.11 keV
Neutron separation energy	7,412 ±16.44 keV
Q value for electron capture	4,329 ±12.46 keV
β⁻ decay energy	-2,149 ±14.35 keV
β⁻ decay energy with neutron	-11,830 ±13.13 keV
Magnetic dipole moment	0.072 ±0.003 μN
Electric quadrupole moment	-0.178 ±0.014 b

Point at nuclide Decay chain of Thallium-196

197TlThallium-197

Classification	z: 81; n: 116; m: 197
Half life	2.84 ±4 h
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	electron capture + β⁺ decay
Discovery	1955
Mass excess	-28,360 ±13.57 keV
Binding energy	7,893 ±0.0689 keV
Single-particle energy	3,817 ±13.89 keV
Neutron separation energy	8,928 ±18.19 keV
Q value for electron capture	2,186 ±13.94 keV
β⁻ decay energy	-3,609 ±14.39 keV
β⁻ decay energy with neutron	-11,080 ±15.6 keV
Magnetic dipole moment	1.57 ±0.02 μN

Point at nuclide Decay chain of Thallium-197

198TlThallium-198

Classification	z: 81; n: 117; m: 198
Half life	5.3 ±5 h
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	electron capture + β⁺ decay
Discovery	1949
Mass excess	-27,530 ±7.545 keV
Binding energy	7,890 ±0.0381 keV
Single-particle energy	4,277 ±8.198 keV
Neutron separation energy	7,245 ±15.53 keV
Q value for electron capture	3,425 ±7.559 keV
β⁻ decay energy	-1,462 ±11.55 keV
β⁻ decay energy with neutron	-10,860 ±8.944 keV

Point at nuclide Decay chain of Thallium-198

199TlThallium-199

Classification	z: 81; n: 118; m: 199
Half life	7.42 ±8 h
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	electron capture + β⁺ decay
Discovery	1949
Mass excess	-28,060 ±27.94 keV
Binding energy	7,893 ±0.1404 keV
Single-particle energy	4,394 ±27.94 keV
Neutron separation energy	8,601 ±28.94 keV
Q value for electron capture	1,486 ±27.95 keV
β⁻ decay energy	-2,828 ±28.76 keV
β⁻ decay energy with neutron	-10,070 ±29.28 keV
Magnetic dipole moment	1.59 ±0.02 μN

Point at nuclide Decay chain of Thallium-199

200TlThallium-200

Classification	z: 81; n: 119; m: 200
Half life	26.1 ±1 h
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	electron capture + β⁺ decay
Discovery	1949
Mass excess	-27,050 ±5.759 keV
Binding energy	7,889 ±0.0288 keV
Single-particle energy	4,790 ±5.735 keV
Neutron separation energy	7,059 ±28.53 keV
Q value for electron capture	2,456 ±5.78 keV
β⁻ decay energy	-796.4 ±11.53 keV
β⁻ decay energy with neutron	-9,887 ±8.927 keV
Magnetic dipole moment	0.04 ±0.01 μN

Point at nuclide Decay chain of Thallium-200

201TlThallium-201

Classification	z: 81; n: 120; m: 201
Half life	3.042 ±16 d
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	electron capture (EC)
Discovery	1950
Mass excess	-27,190 ±14.18 keV
Binding energy	7,891 ±0.0706 keV
Single-particle energy	4,966 ±14.18 keV
Neutron separation energy	8,204 ±15.3 keV
Q value for electron capture	481.7 ±14.2 keV
β⁻ decay energy	-1,910 ±18.52 keV
β⁻ decay energy with neutron	-9,002 ±17.3 keV
Magnetic dipole moment	1.599 ±0.003 μN

Point at nuclide Decay chain of Thallium-201

202TlThallium-202

Classification	z: 81; n: 121; m: 202
Half life	12.31 ±8 d
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	electron capture + β⁺ decay
Discovery	1940
Mass excess	-25,990 ±1.838 keV
Binding energy	7,886 ±0.0091 keV
Single-particle energy	5,606 ±1.839 keV
Neutron separation energy	6,870 ±14.24 keV
Q value for electron capture	1,364 ±1.969 keV
β⁻ decay energy	-39.82 ±4.186 keV
β⁻ decay energy with neutron	-8,781 ±13.86 keV
Magnetic dipole moment	0.06 ±0.01 μN

Point at nuclide Decay chain of Thallium-202

203TlThallium-203

Classification	z: 81; n: 122; m: 203
Half life	stable nuclide
Natural abundance	29.51 ±0.044 %
Spin/parity	1/2+
Discovery	1931
Mass excess	-25,770 ±1.171 keV
Binding energy	7,886 ±0.0058 keV
Single-particle energy	5,704 ±1.082 keV
Neutron separation energy	7,852 ±1.677 keV
Q value for electron capture	-492.2 ±2.007 keV
β⁻ decay energy	-974.9 ±6.46 keV
β⁻ decay energy with neutron	-7,893 ±3.925 keV
Magnetic dipole moment	1.616 ±0.002 μN

Point at nuclide

204TlThallium-204

Classification	z: 81; n: 123; m: 204
Half life	3.783 ±12 a
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	β⁻ decay; electron capture + β⁺ decay
Discovery	1953
Mass excess	-24,350 ±1.154 keV
Binding energy	7,880 ±0.0057 keV
Single-particle energy	6,365 ±1.254 keV
Neutron separation energy	6,656 ±0.2907 keV
Q value for electron capture	344 ±1.257 keV
β⁻ decay energy	763.7 ±0.1768 keV
β⁻ decay energy with neutron	-7,631 ±6.456 keV
Magnetic dipole moment	0.09 ±0.01 μN

Point at nuclide Decay chain of Thallium-204

205TlThallium-205

Classification	z: 81; n: 124; m: 205
Half life	stable nuclide
Natural abundance	70.48 ±0.044 %
Spin/parity	1/2+
Discovery	1931
Mass excess	-23,830 ±1.239 keV
Binding energy	7,878 ±0.006 keV
Single-particle energy	6,419 ±1.27 keV
Neutron separation energy	7,546 ±0.4796 keV
Q value for electron capture	-1,534 ±3.859 keV
β⁻ decay energy	-50.65 ±0.5033 keV
β⁻ decay energy with neutron	-6,783 ±0.4973 keV
Magnetic dipole moment	1.632 ±0.002 μN
Electric quadrupole moment	0.74 ±0.15 b

Point at nuclide

206TlThallium-206

Classification	z: 81; n: 125; m: 206
Half life	4.202 ±11 m
Natural abundance	synthetic nuclide
Spin/parity	0-
Decay modes	β⁻ decay
Discovery	1935
Mass excess	-22,260 ±1.286 keV
Binding energy	7,871 ±0.0062 keV
Single-particle energy	7,254 ±3.74 keV
Neutron separation energy	6,503 ±0.3865 keV
Q value for electron capture	-1,308 ±20.48 keV
β⁻ decay energy	1,532 ±0.6117 keV
β⁻ decay energy with neutron	-6,555 ±0.6105 keV
Magnetic dipole moment	4.27 ±0.06 μN

Point at nuclide Decay chain of Thallium-206

207TlThallium-207

Classification	z: 81; n: 126; m: 207
Half life	4.77 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	β⁻ decay
Discovery	1908
Mass excess	-21,040 ±5.439 keV
Binding energy	7,866 ±0.0263 keV
Single-particle energy	7,377 ±21.11 keV
Neutron separation energy	6,852 ±5.429 keV
Q value for electron capture	-4,547 ±30.3 keV
β⁻ decay energy	1,417 ±5.402 keV
β⁻ decay energy with neutron	-5,321 ±5.402 keV
Magnetic dipole moment	1.869 ±0.005 μN

Point at nuclide Decay chain of Thallium-207

208TlThallium-208

Classification	z: 81; n: 127; m: 208
Half life	3.053 ±4 m
Natural abundance	synthetic nuclide
Spin/parity	5+
Decay modes	β⁻ decay
Discovery	1909
Mass excess	-16,760 ±1.854 keV
Binding energy	7,847 ±0.0089 keV
Single-particle energy	7,551 ±29.86 keV
Neutron separation energy	3,787 ±5.596 keV
Q value for electron capture	-3,485 ±30.79 keV
β⁻ decay energy	4,998 ±1.669 keV
β⁻ decay energy with neutron	-2,370 ±1.669 keV
Magnetic dipole moment	0.291 ±0.013 μN

Point at nuclide Decay chain of Thallium-208

209TlThallium-209

Classification	z: 81; n: 128; m: 209
Half life	2.162 ±7 m
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	β⁻ decay
Discovery	1950
Mass excess	-13,650 ±6.11 keV
Binding energy	7,833 ±0.0292 keV
Single-particle energy	7,668 ±31.34 keV
Neutron separation energy	4,965 ±6.27 keV
Q value for electron capture	-5,035 ±150.1 keV
β⁻ decay energy	3,969 ±6.211 keV
β⁻ decay energy with neutron	32.4 ±6.14 keV

Point at nuclide Decay chain of Thallium-209

210TlThallium-210

Classification	z: 81; n: 129; m: 210
Half life	1.3 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	(5+)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1909
Mass excess	-9,247 ±11.6 keV
Binding energy	7,813 ±0.0553 keV
Single-particle energy	7,926 ±150 keV
Neutron separation energy	3,673 ±13.05 keV
Q value for electron capture	-3,947 ±200.3 keV
β⁻ decay energy	5,481 ±11.56 keV
β⁻ decay energy with neutron	296.2 ±11.62 keV

Point at nuclide Decay chain of Thallium-210

211TlThallium-211

Classification	z: 81; n: 130; m: 211
Half life	88 ± s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1998
Mass excess	-6,078 ±41.91 keV
Binding energy	7,799 ±0.1987 keV
Single-particle energy	8,067 ±205 keV
Neutron separation energy	4,902 ±43.49 keV
Q value for electron capture	-5,688 ±204.3 keV
β⁻ decay energy	4,415 ±41.97 keV
β⁻ decay energy with neutron	579.1 ±41.94 keV

Point at nuclide Decay chain of Thallium-211

212TlThallium-212

Classification	z: 81; n: 131; m: 212
Half life	30.9 ±80 s
Natural abundance	synthetic nuclide
Spin/parity	(5+)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1998
Mass excess	-1,551 ±200 keV
Binding energy	7,780 ±1 keV
Single-particle energy	8,450 ±283 keV
Neutron separation energy	3,544 ±205 keV
Q value for electron capture	-4,571 ±360.5 keV
β⁻ decay energy	5,998 ±200 keV
β⁻ decay energy with neutron	871 ±200 keV

Point at nuclide Decay chain of Thallium-212

213TlThallium-213

Classification	z: 81; n: 132; m: 213
Half life	23.8 ±44 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2010
Mass excess	1,783 ±27.01 keV
Binding energy	7,765 ±0.1268 keV
Single-particle energy	8,525 ±301 keV
Neutron separation energy	4,737 ±202 keV
Q value for electron capture	-6,417 ±301.2 keV
β⁻ decay energy	4,987 ±27.89 keV
β⁻ decay energy with neutron	1,261 ±27.07 keV

Point at nuclide Decay chain of Thallium-213

214TlThallium-214

Classification	z: 81; n: 133; m: 214
Half life	11 ±24 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2010
Mass excess	6,465 ±196 keV
Binding energy	7,745 ±1 keV
Single-particle energy	9,024 ±358 keV
Neutron separation energy	3,391 ±197 keV
Q value for electron capture	-5,305 ±445.4 keV
β⁻ decay energy	6,648 ±196 keV
β⁻ decay energy with neutron	1,597 ±196 keV

Point at nuclide Decay chain of Thallium-214

215TlThallium-215

Classification	z: 81; n: 134; m: 215
Half life	9.7 ±38 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2010
Mass excess	10,030 ±300 keV
Binding energy	7,730 ±1 keV
Single-particle energy	9,029 ±500 keV
Neutron separation energy	4,506 ±358 keV
Q value for electron capture	-7,080 ±500 keV
β⁻ decay energy	5,688 ±305 keV
β⁻ decay energy with neutron	2,142 ±300 keV

Point at nuclide Decay chain of Thallium-215

216TlThallium-216

Classification	z: 81; n: 135; m: 216
Half life	300 ns
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2010
Mass excess	14,870 ±300 keV
Binding energy	7,709 ±1 keV
Single-particle energy	9,528 ±500 keV
Neutron separation energy	3,231 ±424 keV
Q value for electron capture	-6,050 ±500 keV
β⁻ decay energy	7,361 ±361 keV
β⁻ decay energy with neutron	2,457 ±305 keV

Point at nuclide Decay chain of Thallium-216

217TlThallium-217

Classification	z: 81; n: 136; m: 217
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2010
Mass excess	18,660 ±400 keV
Binding energy	7,693 ±2 keV
Single-particle energy	9,550 ±565 keV
Neutron separation energy	4,282 ±500 keV
β⁻ decay energy	6,399 ±500 keV
β⁻ decay energy with neutron	3,079 ±447 keV

Point at nuclide

Isotopes of Thallium

176TlThallium-176ads_clickcall_splitdownload

177TlThallium-177ads_clickcall_splitdownload

178TlThallium-178ads_clickcall_splitdownload

179TlThallium-179ads_clickcall_splitdownload

180TlThallium-180ads_clickcall_splitdownload

181TlThallium-181ads_clickcall_splitdownload

182TlThallium-182ads_clickcall_splitdownload

183TlThallium-183ads_clickcall_splitdownload

184TlThallium-184ads_clickcall_splitdownload

185TlThallium-185ads_clickcall_splitdownload

186TlThallium-186ads_clickcall_splitdownload

187TlThallium-187ads_clickcall_splitdownload

188TlThallium-188ads_clickcall_splitdownload

189TlThallium-189ads_clickcall_splitdownload

190TlThallium-190ads_clickcall_splitdownload

191TlThallium-191ads_clickdownload

192TlThallium-192ads_clickcall_splitdownload

193TlThallium-193ads_clickcall_splitdownload

194TlThallium-194ads_clickcall_splitdownload

195TlThallium-195ads_clickcall_splitdownload

196TlThallium-196ads_clickcall_splitdownload

197TlThallium-197ads_clickcall_splitdownload

198TlThallium-198ads_clickcall_splitdownload

199TlThallium-199ads_clickcall_splitdownload

200TlThallium-200ads_clickcall_splitdownload

201TlThallium-201ads_clickcall_splitdownload

202TlThallium-202ads_clickcall_splitdownload

203TlThallium-203ads_clickdownload

204TlThallium-204ads_clickcall_splitdownload

205TlThallium-205ads_clickdownload

206TlThallium-206ads_clickcall_splitdownload

207TlThallium-207ads_clickcall_splitdownload

208TlThallium-208ads_clickcall_splitdownload

209TlThallium-209ads_clickcall_splitdownload

210TlThallium-210ads_clickcall_splitdownload

211TlThallium-211ads_clickcall_splitdownload

212TlThallium-212ads_clickcall_splitdownload

213TlThallium-213ads_clickcall_splitdownload

214TlThallium-214ads_clickcall_splitdownload

215TlThallium-215ads_clickcall_splitdownload

216TlThallium-216ads_clickcall_splitdownload

217TlThallium-217ads_clickdownload

176TlThallium-176

177TlThallium-177

178TlThallium-178

179TlThallium-179

180TlThallium-180

181TlThallium-181

182TlThallium-182

183TlThallium-183

184TlThallium-184

185TlThallium-185

186TlThallium-186

187TlThallium-187

188TlThallium-188

189TlThallium-189

190TlThallium-190

191TlThallium-191

192TlThallium-192

193TlThallium-193

194TlThallium-194

195TlThallium-195

196TlThallium-196

197TlThallium-197

198TlThallium-198

199TlThallium-199

200TlThallium-200

201TlThallium-201

202TlThallium-202

203TlThallium-203

204TlThallium-204

205TlThallium-205

206TlThallium-206

207TlThallium-207

208TlThallium-208

209TlThallium-209

210TlThallium-210

211TlThallium-211

212TlThallium-212

213TlThallium-213

214TlThallium-214

215TlThallium-215

216TlThallium-216

217TlThallium-217