Isotopes of Thorium

List of known isotopes of the element Thorium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
²⁰⁷Th	10 ± ms	syn.	—	—	—	—
²⁰⁸Th	1.7 ± ms	syn.	0+	—	2.08·10⁸ ±34.2 keV/c²	2010
²⁰⁹Th	2.5 ± ms	syn.	(13/2+)	—	2.09·10⁸ ±111 keV/c²	—
²¹⁰Th	16 ±4 ms	syn.	0+	—	2.1·10⁸ ±20.29 keV/c²	1995
²¹¹Th	37 ± ms	syn.	—	—	2.11·10⁸ ±92.39 keV/c²	1995
²¹²Th	31.7 ±13 ms	syn.	0+	—	2.12·10⁸ ±10.85 keV/c²	1980
²¹³Th	146 ± ms	syn.	5/2-	—	2.13·10⁸ ±9.895 keV/c²	1968
²¹⁴Th	87 ±10 ms	syn.	0+	—	2.14·10⁸ ±11.44 keV/c²	1968
²¹⁵Th	1.2 ±2 s	syn.	(1/2-)	—	2.15·10⁸ ±6.8 keV/c²	1968
²¹⁶Th	26 ±2 ms	syn.	0+	—	2.16·10⁸ ±11.92 keV/c²	1968
²¹⁷Th	0.252 ±4 ms	syn.	(9/2+)	—	2.17·10⁸ ±11.39 keV/c²	1968
²¹⁸Th	122 ±5 ns	syn.	0+	—	2.18·10⁸ ±11.28 keV/c²	1973
²¹⁹Th	1.025 ±30 us	syn.	(9/2+)	—	2.19·10⁸ ±60.61 keV/c²	1973
²²⁰Th	9.7 ±6 us	syn.	0+	—	2.2·10⁸ ±14.69 keV/c²	1973
²²¹Th	1.74 ±3 ms	syn.	(7/2+)	—	2.21·10⁸ ±8.582 keV/c²	1970
²²²Th	2.24 ±3 ms	syn.	0+	—	2.22·10⁸ ±10.96 keV/c²	1970
²²³Th	0.6 ±2 s	syn.	(5/2)+	—	2.23·10⁸ ±8.527 keV/c²	1952
²²⁴Th	1.04 ±2 s	syn.	0+	—	2.24·10⁸ ±10.31 keV/c²	1949
²²⁵Th	8.75 ±4 m	syn.	(3/2+)	—	2.25·10⁸ ±5.467 keV/c²	1949
²²⁶Th	30.57 ±10 m	syn.	0+	—	2.26·10⁸ ±4.81 keV/c²	1948
²²⁷Th	18.69 ±7 d	syn.	(1/2+)	5.74 ±0.0165 fm	2.27·10⁸ ±2.241 keV/c²	1906
²²⁸Th	1.911 ±16 a	syn.	0+	5.748 ±0.0152 fm	2.28·10⁸ ±1.938 keV/c²	1905
²²⁹Th	7,880 ±120 a	syn.	5/2+	5.755 ±0.0143 fm	2.29·10⁸ ±2.581 keV/c²	1947
²³⁰Th	75,400 ±3 a	0.02 ±0.02 %	0+	5.767 ±0.0131 fm	2.3·10⁸ ±1.297 keV/c²	1907
²³¹Th	25.57 ±8 h	syn.	5/2+	—	2.31·10⁸ ±1.306 keV/c²	1911
²³²Th	1.4·10¹⁰ ±1 a	99.98 ±0.02 %	0+	5.784 ±0.0124 fm	2.32·10⁸ ±1.525 keV/c²	1898
²³³Th	21.83 ±4 m	syn.	1/2+	—	2.33·10⁸ ±1.528 keV/c²	1935
²³⁴Th	24.1 ±3 d	syn.	0+	—	2.34·10⁸ ±2.779 keV/c²	1900
²³⁵Th	7.2 ±1 m	syn.	(1/2+)	—	2.35·10⁸ ±14 keV/c²	1969
²³⁶Th	37.5 ±2 m	syn.	0+	—	2.36·10⁸ ±15 keV/c²	1973
²³⁷Th	4.8 ±5 m	syn.	(5/2+)	—	2.37·10⁸ ±17 keV/c²	1993
²³⁸Th	9.4 ±20 m	syn.	0+	—	2.38·10⁸ ±304 keV/c²	1999

207ThThorium-207

Classification	z: 90; n: 117; m: 207
Half life	10 ± ms
Natural abundance	synthetic nuclide
Decay modes	α decay

Point at nuclide Decay chain of Thorium-207

208ThThorium-208

Classification	z: 90; n: 118; m: 208
Half life	1.7 ± ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	2010
Mass excess	16,680 ±31.86 keV
Binding energy	7,652 ±0.1532 keV
Single-particle energy	1,747 ±64.64 keV
Q value for electron capture	5,927 ±71.92 keV

Point at nuclide Decay chain of Thorium-208

209ThThorium-209

Classification	z: 90; n: 119; m: 209
Half life	2.5 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(13/2+)
Decay modes	α decay
Mass excess	16,390 ±103 keV
Binding energy	7,656 keV
Single-particle energy	1,655 ±122 keV
Neutron separation energy	8,364 ±108 keV
Q value for electron capture	7,550 ±117.1 keV

Point at nuclide Decay chain of Thorium-209

210ThThorium-210

Classification	z: 90; n: 120; m: 210
Half life	16 ±4 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1995
Mass excess	14,050 ±18.9 keV
Binding energy	7,669 ±0.09 keV
Single-particle energy	2,074 ±58.96 keV
Neutron separation energy	10,400 ±105 keV
Q value for electron capture	5,295 ±65.01 keV

Point at nuclide Decay chain of Thorium-210

211ThThorium-211

Classification	z: 90; n: 121; m: 211
Half life	37 ± ms
Natural abundance	synthetic nuclide
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1995
Mass excess	13,870 ±86.07 keV
Binding energy	7,671 ±0.4079 keV
Single-particle energy	2,176 ±106.1 keV
Neutron separation energy	8,254 ±88.12 keV
Q value for electron capture	6,732 ±101.4 keV
β⁻ decay energy	-8,176 ±110.6 keV

Point at nuclide Decay chain of Thorium-211

212ThThorium-212

Classification	z: 90; n: 122; m: 212
Half life	31.7 ±13 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1980
Mass excess	12,110 ±10.1 keV
Binding energy	7,682 ±0.0477 keV
Single-particle energy	2,321 ±54.69 keV
Neutron separation energy	9,836 ±86.66 keV
Q value for electron capture	4,811 ±24.1 keV
β⁻ decay energy	-9,486 ±88.18 keV
β⁻ decay energy with neutron	-18,020 ±70.2 keV

Point at nuclide Decay chain of Thorium-212

213ThThorium-213

Classification	z: 90; n: 123; m: 213
Half life	146 ± ms
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	α decay
Discovery	1968
Mass excess	12,120 ±9.217 keV
Binding energy	7,683 ±0.0433 keV
Single-particle energy	2,468 ±23.74 keV
Neutron separation energy	8,062 ±13.65 keV
Q value for electron capture	5,979 ±14.86 keV
β⁻ decay energy	-7,535 ±57.9 keV
β⁻ decay energy with neutron	-17,550 ±88.08 keV

Point at nuclide Decay chain of Thorium-213

214ThThorium-214

Classification	z: 90; n: 124; m: 214
Half life	87 ±10 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1968
Mass excess	10,690 ±10.66 keV
Binding energy	7,692 ±0.0498 keV
Single-particle energy	2,735 ±15.79 keV
Neutron separation energy	9,496 ±14.07 keV
Q value for electron capture	4,261 ±17.24 keV
β⁻ decay energy	-8,765 ±81.9 keV
β⁻ decay energy with neutron	-17,040 ±58.15 keV

Point at nuclide Decay chain of Thorium-214

215ThThorium-215

Classification	z: 90; n: 125; m: 215
Half life	1.2 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2-)
Decay modes	α decay
Discovery	1968
Mass excess	10,920 ±6.335 keV
Binding energy	7,693 ±0.0295 keV
Single-particle energy	2,800 ±14.95 keV
Neutron separation energy	7,844 ±12.4 keV
Q value for electron capture	4,890 ±13.93 keV
β⁻ decay energy	-6,884 ±82.69 keV
β⁻ decay energy with neutron	-16,610 ±81.45 keV

Point at nuclide Decay chain of Thorium-215

216ThThorium-216

Classification	z: 90; n: 126; m: 216
Half life	26 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1968
Mass excess	10,290 ±11.1 keV
Binding energy	7,697 ±0.0514 keV
Single-particle energy	3,020 ±16.64 keV
Neutron separation energy	8,694 ±12.78 keV
Q value for electron capture	2,148 ±14.43 keV
β⁻ decay energy	-7,526 ±27.03 keV
β⁻ decay energy with neutron	-15,580 ±83.19 keV

Point at nuclide Decay chain of Thorium-216

217ThThorium-217

Classification	z: 90; n: 127; m: 217
Half life	0.252 ±4 ms
Natural abundance	synthetic nuclide
Spin/parity	(9/2+)
Decay modes	α decay
Discovery	1968
Mass excess	12,200 ±10.61 keV
Binding energy	7,690 ±0.0489 keV
Single-particle energy	3,232 ±14.06 keV
Neutron separation energy	6,164 ±15.35 keV
Q value for electron capture	3,503 ±15.44 keV
β⁻ decay energy	-4,849 ±16.39 keV
β⁻ decay energy with neutron	-13,690 ±26.83 keV

Point at nuclide Decay chain of Thorium-217

218ThThorium-218

Classification	z: 90; n: 128; m: 218
Half life	122 ±5 ns
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1973
Mass excess	12,360 ±10.51 keV
Binding energy	7,691 ±0.0482 keV
Single-particle energy	3,624 ±15.37 keV
Neutron separation energy	7,910 ±14.94 keV
Q value for electron capture	1,515 ±58.56 keV
β⁻ decay energy	-6,283 ±20.71 keV
β⁻ decay energy with neutron	-12,760 ±16.33 keV

Point at nuclide Decay chain of Thorium-218

219ThThorium-219

Classification	z: 90; n: 129; m: 219
Half life	1.025 ±30 us
Natural abundance	synthetic nuclide
Spin/parity	(9/2+)
Decay modes	α decay
Discovery	1973
Mass excess	14,460 ±56.46 keV
Binding energy	7,683 ±0.2578 keV
Single-particle energy	3,677 ±80.65 keV
Neutron separation energy	5,975 ±57.42 keV
Q value for electron capture	2,893 ±76.4 keV
β⁻ decay energy	-4,121 ±89.7 keV
β⁻ decay energy with neutron	-12,260 ±59.21 keV

Point at nuclide Decay chain of Thorium-219

220ThThorium-220

Classification	z: 90; n: 130; m: 220
Half life	9.7 ±6 us
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture (EC)
Discovery	1973
Mass excess	14,680 ±13.68 keV
Binding energy	7,684 ±0.0622 keV
Single-particle energy	4,168 ±53.24 keV
Neutron separation energy	7,844 ±58.07 keV
Q value for electron capture	945.7 ±14.99 keV
β⁻ decay energy	-5,589 ±20.05 keV
β⁻ decay energy with neutron	-11,970 ±71.03 keV

Point at nuclide Decay chain of Thorium-220

221ThThorium-221

Classification	z: 90; n: 131; m: 221
Half life	1.74 ±3 ms
Natural abundance	synthetic nuclide
Spin/parity	(7/2+)
Decay modes	α decay
Discovery	1970
Mass excess	16,930 ±7.994 keV
Binding energy	7,676 ±0.0362 keV
Single-particle energy	4,092 ±9.944 keV
Neutron separation energy	5,820 ±15.77 keV
Q value for electron capture	2,408 ±57.46 keV
β⁻ decay energy	-3,436 ±59.9 keV
β⁻ decay energy with neutron	-11,410 ±16.69 keV

Point at nuclide Decay chain of Thorium-221

222ThThorium-222

Classification	z: 90; n: 132; m: 222
Half life	2.24 ±3 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1970
Mass excess	17,200 ±10.21 keV
Binding energy	7,676 ±0.046 keV
Single-particle energy	4,616 ±57.78 keV
Neutron separation energy	7,808 ±12.87 keV
Q value for electron capture	581.2 ±11.24 keV
β⁻ decay energy	-4,862 ±87.19 keV
β⁻ decay energy with neutron	-11,250 ±60.24 keV

Point at nuclide Decay chain of Thorium-222

223ThThorium-223

Classification	z: 90; n: 133; m: 223
Half life	0.6 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	(5/2)+
Decay modes	α decay
Discovery	1952
Mass excess	19,380 ±7.943 keV
Binding energy	7,668 ±0.0356 keV
Single-particle energy	4,525 ±9.088 keV
Neutron separation energy	5,888 ±12.83 keV
Q value for electron capture	1,560 ±10.55 keV
β⁻ decay energy	-2,953 ±76.03 keV
β⁻ decay energy with neutron	-10,760 ±86.95 keV

Point at nuclide Decay chain of Thorium-223

224ThThorium-224

Classification	z: 90; n: 134; m: 224
Half life	1.04 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1949
Mass excess	19,990 ±9.604 keV
Binding energy	7,667 ±0.0429 keV
Single-particle energy	5,118 ±11.78 keV
Neutron separation energy	7,461 ±12.35 keV
Q value for electron capture	-238.6 ±10.43 keV
β⁻ decay energy	-3,867 ±12.13 keV
β⁻ decay energy with neutron	-10,420 ±76.22 keV

Point at nuclide Decay chain of Thorium-224

225ThThorium-225

Classification	z: 90; n: 135; m: 225
Half life	8.75 ±4 m
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	α decay; electron capture (EC)
Discovery	1949
Mass excess	22,310 ±5.093 keV
Binding energy	7,659 ±0.0226 keV
Single-particle energy	5,212 ±6.383 keV
Neutron separation energy	5,756 ±10.75 keV
Q value for electron capture	672.8 ±6.97 keV
β⁻ decay energy	-2,047 ±82 keV
β⁻ decay energy with neutron	-9,624 ±8.947 keV

Point at nuclide Decay chain of Thorium-225

226ThThorium-226

Classification	z: 90; n: 136; m: 226
Half life	30.57 ±10 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1948
Mass excess	23,190 ±4.481 keV
Binding energy	7,657 ±0.0198 keV
Single-particle energy	5,728 ±6.422 keV
Neutron separation energy	7,183 ±6.605 keV
Q value for electron capture	-1,112 ±5.449 keV
β⁻ decay energy	-2,836 ±11.97 keV
β⁻ decay energy with neutron	-9,231 ±81.97 keV

Point at nuclide Decay chain of Thorium-226

227ThThorium-227

Classification	z: 90; n: 137; m: 227
Half life	18.69 ±7 d
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	α decay
Discovery	1906
Mass excess	25,800 ±2.088 keV
Binding energy	7,647 ±0.0092 keV
Single-particle energy	5,793 ±3.432 keV
Neutron separation energy	5,464 ±4.814 keV
Q value for electron capture	-44.76 ±2.841 keV
β⁻ decay energy	-1,026 ±7.281 keV
β⁻ decay energy with neutron	-8,301 ±11.38 keV

Point at nuclide Decay chain of Thorium-227

228ThThorium-228

Classification	z: 90; n: 138; m: 228
Half life	1.911 ±16 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1905
Mass excess	26,770 ±1.806 keV
Binding energy	7,645 ±0.0079 keV
Single-particle energy	6,367 ±2.101 keV
Neutron separation energy	7,105 ±2.252 keV
Q value for electron capture	-2,124 ±2.764 keV
β⁻ decay energy	-2,153 ±4.339 keV
β⁻ decay energy with neutron	-8,131 ±7.372 keV

Point at nuclide Decay chain of Thorium-228

229ThThorium-229

Classification	z: 90; n: 139; m: 229
Half life	7,880 ±120 a
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	α decay
Discovery	1947
Mass excess	29,580 ±2.404 keV
Binding energy	7,634 ±0.0105 keV
Single-particle energy	6,598 ±2.779 keV
Neutron separation energy	5,256 ±2.609 keV
Q value for electron capture	-1,105 ±12.34 keV
β⁻ decay energy	-311.4 ±3.715 keV
β⁻ decay energy with neutron	-7,410 ±4.843 keV
Magnetic dipole moment	0.46 ±0.04 μN
Electric quadrupole moment	3.11 ±0.06 b

Point at nuclide Decay chain of Thorium-229

230ThThorium-230

Classification	z: 90; n: 140; m: 230
Half life	75,400 ±3 a
Natural abundance	0.02 ±0.02 %
Spin/parity	0+
Decay modes	α decay; other decay; spontaneous fission
Discovery	1907
Mass excess	30,860 ±1.209 keV
Binding energy	7,630 ±0.0053 keV
Single-particle energy	7,116 ±12.16 keV
Neutron separation energy	6,794 ±2.208 keV
Q value for electron capture	-2,976 ±15.88 keV
β⁻ decay energy	-1,312 ±2.833 keV
β⁻ decay energy with neutron	-7,106 ±3.14 keV

Point at nuclide Decay chain of Thorium-230

231ThThorium-231

Classification	z: 90; n: 141; m: 231
Half life	25.57 ±8 h
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	β⁻ decay
Discovery	1911
Mass excess	33,810 ±1.217 keV
Binding energy	7,620 ±0.0053 keV
Single-particle energy	7,311 ±15.88 keV
Neutron separation energy	5,118 ±0.1981 keV
Q value for electron capture	-1,948 ±13.09 keV
β⁻ decay energy	391.4 ±1.459 keV
β⁻ decay energy with neutron	-6,430 ±2.84 keV

Point at nuclide Decay chain of Thorium-231

232ThThorium-232

Classification	z: 90; n: 142; m: 232
Half life	1.4·10¹⁰ ±1 a
Natural abundance	99.98 ±0.02 %
Spin/parity	0+
Decay modes	α decay; spontaneous fission
Discovery	1898
Mass excess	35,440 ±1.421 keV
Binding energy	7,615 ±0.0061 keV
Single-particle energy	7,605 ±13.11 keV
Neutron separation energy	6,440 ±1.071 keV
Q value for electron capture	-3,708 ±13.11 keV
β⁻ decay energy	-499.9 ±7.733 keV
β⁻ decay energy with neutron	-6,049 ±1.703 keV

Point at nuclide Decay chain of Thorium-232

233ThThorium-233

Classification	z: 90; n: 143; m: 233
Half life	21.83 ±4 m
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	β⁻ decay
Discovery	1935
Mass excess	38,730 ±1.424 keV
Binding energy	7,602 ±0.0061 keV
Single-particle energy	7,711 ±13.11 keV
Neutron separation energy	4,786 ±0.0928 keV
Q value for electron capture	-2,577 ±13.11 keV
β⁻ decay energy	1,242 ±1.122 keV
β⁻ decay energy with neutron	-5,287 ±7.734 keV

Point at nuclide Decay chain of Thorium-233

234ThThorium-234

Classification	z: 90; n: 144; m: 234
Half life	24.1 ±3 d
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1900
Mass excess	40,610 ±2.589 keV
Binding energy	7,596 ±0.0111 keV
Single-particle energy	7,984 ±13.29 keV
Neutron separation energy	6,190 ±2.574 keV
Q value for electron capture	-4,229 ±14.21 keV
β⁻ decay energy	274 ±3.171 keV
β⁻ decay energy with neutron	-4,948 ±2.532 keV

Point at nuclide Decay chain of Thorium-234

235ThThorium-235

Classification	z: 90; n: 145; m: 235
Half life	7.2 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	β⁻ decay
Discovery	1969
Mass excess	44,010 ±13.04 keV
Binding energy	7,584 ±0.0555 keV
Single-particle energy	8,112 ±19.11 keV
Neutron separation energy	4,666 ±13.29 keV
Q value for electron capture	-3,340 ±19.11 keV
β⁻ decay energy	1,728 ±19.11 keV
β⁻ decay energy with neutron	-4,393 ±13.66 keV

Point at nuclide Decay chain of Thorium-235

236ThThorium-236

Classification	z: 90; n: 146; m: 236
Half life	37.5 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1973
Mass excess	46,250 ±13.97 keV
Binding energy	7,576 ±0.0592 keV
Single-particle energy	8,390 ±19.76 keV
Neutron separation energy	5,833 ±19.11 keV
Q value for electron capture	-4,966 ±40.66 keV
β⁻ decay energy	921.2 ±19.76 keV
β⁻ decay energy with neutron	-4,106 ±19.76 keV

Point at nuclide Decay chain of Thorium-236

237ThThorium-237

Classification	z: 90; n: 147; m: 237
Half life	4.8 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	(5/2+)
Decay modes	β⁻ decay
Discovery	1993
Mass excess	49,950 ±15.83 keV
Binding energy	7,563 ±0.0668 keV
Single-particle energy	8,554 ±41.34 keV
Neutron separation energy	4,371 ±21.11 keV
β⁻ decay energy	2,427 ±20.51 keV
β⁻ decay energy with neutron	-3,451 ±21.11 keV

Point at nuclide Decay chain of Thorium-237

238ThThorium-238

Classification	z: 90; n: 148; m: 238
Half life	9.4 ±20 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1999
Mass excess	52,520 ±283 keV
Binding energy	7,555 ±1 keV
Single-particle energy	8,784 ±490 keV
Neutron separation energy	5,501 ±284 keV
β⁻ decay energy	1,631 ±284 keV
β⁻ decay energy with neutron	-3,074 ±284 keV

Point at nuclide Decay chain of Thorium-238

Isotopes of Thorium

207ThThorium-207ads_clickcall_splitdownload

208ThThorium-208ads_clickcall_splitdownload

209ThThorium-209ads_clickcall_splitdownload

210ThThorium-210ads_clickcall_splitdownload

211ThThorium-211ads_clickcall_splitdownload

212ThThorium-212ads_clickcall_splitdownload

213ThThorium-213ads_clickcall_splitdownload

214ThThorium-214ads_clickcall_splitdownload

215ThThorium-215ads_clickcall_splitdownload

216ThThorium-216ads_clickcall_splitdownload

217ThThorium-217ads_clickcall_splitdownload

218ThThorium-218ads_clickcall_splitdownload

219ThThorium-219ads_clickcall_splitdownload

220ThThorium-220ads_clickcall_splitdownload

221ThThorium-221ads_clickcall_splitdownload

222ThThorium-222ads_clickcall_splitdownload

223ThThorium-223ads_clickcall_splitdownload

224ThThorium-224ads_clickcall_splitdownload

225ThThorium-225ads_clickcall_splitdownload

226ThThorium-226ads_clickcall_splitdownload

227ThThorium-227ads_clickcall_splitdownload

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229ThThorium-229ads_clickcall_splitdownload

230ThThorium-230ads_clickcall_splitdownload

231ThThorium-231ads_clickcall_splitdownload

232ThThorium-232ads_clickcall_splitdownload

233ThThorium-233ads_clickcall_splitdownload

234ThThorium-234ads_clickcall_splitdownload

235ThThorium-235ads_clickcall_splitdownload

236ThThorium-236ads_clickcall_splitdownload

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238ThThorium-238ads_clickcall_splitdownload

207ThThorium-207

208ThThorium-208

209ThThorium-209

210ThThorium-210

211ThThorium-211

212ThThorium-212

213ThThorium-213

214ThThorium-214

215ThThorium-215

216ThThorium-216

217ThThorium-217

218ThThorium-218

219ThThorium-219

220ThThorium-220

221ThThorium-221

222ThThorium-222

223ThThorium-223

224ThThorium-224

225ThThorium-225

226ThThorium-226

227ThThorium-227

228ThThorium-228

229ThThorium-229

230ThThorium-230

231ThThorium-231

232ThThorium-232

233ThThorium-233

234ThThorium-234

235ThThorium-235

236ThThorium-236

237ThThorium-237

238ThThorium-238