Isotopes of Actinium

List of known isotopes of the element Actinium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
²⁰⁵Ac	20 ± ms	syn.	(9/2-)	—	2.05·10⁸ ±63.68 keV/c²	2014
²⁰⁶Ac	22 ± ms	syn.	(3+)	—	2.06·10⁸ ±69.87 keV/c²	1998
²⁰⁷Ac	27 ± ms	syn.	(9/2-)	—	2.07·10⁸ ±60.38 keV/c²	1994
²⁰⁸Ac	95 ± ms	syn.	(3+)	—	2.08·10⁸ ±69.22 keV/c²	1994
²⁰⁹Ac	0.087 ± s	syn.	(9/2-)	—	2.09·10⁸ ±59.95 keV/c²	1968
²¹⁰Ac	0.35 ±5 s	syn.	—	—	2.1·10⁸ ±66.78 keV/c²	1968
²¹¹Ac	0.21 ±3 s	syn.	9/2-	—	2.11·10⁸ ±57.7 keV/c²	1968
²¹²Ac	880 ±35 ms	syn.	(7+)	—	2.12·10⁸ ±23.49 keV/c²	1968
²¹³Ac	738 ±16 ms	syn.	9/2-	—	2.13·10⁸ ±12.52 keV/c²	1968
²¹⁴Ac	8.2 ±2 s	syn.	5(+)	—	2.14·10⁸ ±14.54 keV/c²	1968
²¹⁵Ac	0.17 ±1 s	syn.	9/2-	—	2.15·10⁸ ±13.31 keV/c²	1968
²¹⁶Ac	440 ±16 us	syn.	(1-)	—	2.16·10⁸ ±9.908 keV/c²	1967
²¹⁷Ac	69 ±4 ns	syn.	9/2-	—	2.17·10⁸ ±12.04 keV/c²	1972
²¹⁸Ac	1.03 ±5 us	syn.	(1-)	—	2.18·10⁸ ±61.85 keV/c²	1970
²¹⁹Ac	11.8 ±15 us	syn.	9/2-	—	2.19·10⁸ ±55.26 keV/c²	1970
²²⁰Ac	26.4 ±2 ms	syn.	(3-)	—	2.2·10⁸ ±6.579 keV/c²	1970
²²¹Ac	52 ±2 ms	syn.	(3/2-)	—	2.21·10⁸ ±61.08 keV/c²	1968
²²²Ac	5 ±5 s	syn.	1-	—	2.22·10⁸ ±5.044 keV/c²	1949
²²³Ac	2.1 ±5 m	syn.	(5/2-)	—	2.23·10⁸ ±7.457 keV/c²	1948
²²⁴Ac	2.78 ±16 h	syn.	(0-)	—	2.24·10⁸ ±4.389 keV/c²	1948
²²⁵Ac	9.92 ±3 d	syn.	(3/2-)	—	2.25·10⁸ ±5.107 keV/c²	1947
²²⁶Ac	29.37 ±12 h	syn.	(1)	—	2.26·10⁸ ±3.327 keV/c²	1950
²²⁷Ac	21.77 ±3 a	syn.	3/2-	—	2.27·10⁸ ±2.068 keV/c²	1851
²²⁸Ac	6.15 ±2 h	syn.	3+	—	2.28·10⁸ ±2.247 keV/c²	1908
²²⁹Ac	62.7 ±5 m	syn.	(3/2+)	—	2.29·10⁸ ±13 keV/c²	1952
²³⁰Ac	122 ±3 s	syn.	(1+)	—	2.3·10⁸ ±17 keV/c²	1973
²³¹Ac	7.5 ±1 m	syn.	1/2+	—	2.31·10⁸ ±14 keV/c²	1973
²³²Ac	119 ±5 s	syn.	(1+)	—	2.32·10⁸ ±14 keV/c²	1986
²³³Ac	143 ±10 s	syn.	(1/2+)	—	2.33·10⁸ ±14 keV/c²	1983
²³⁴Ac	44 ±7 s	syn.	—	—	2.34·10⁸ ±15 keV/c²	1986
²³⁵Ac	62 ±4 s	syn.	—	—	2.35·10⁸ ±15 keV/c²	2006
²³⁶Ac	1.2 ± m	syn.	—	—	2.36·10⁸ ±41 keV/c²	2010

205AcActinium-205

Classification	z: 89; n: 116; m: 205
Half life	20 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(9/2-)
Decay modes	α decay
Discovery	2014
Mass excess	14,100 ±59.32 keV
Binding energy	7,662 ±0.2894 keV
Single-particle energy	-756.7 ±59.98 keV
Q value for electron capture	8,302 ±63.54 keV

Point at nuclide Decay chain of Actinium-205

206AcActinium-206

Classification	z: 89; n: 117; m: 206
Half life	22 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(3+)
Decay modes	α decay
Discovery	1998
Mass excess	13,480 ±65.08 keV
Binding energy	7,667 ±0.316 keV
Single-particle energy	-392 ±68.95 keV
Neutron separation energy	8,693 ±88.06 keV
Q value for electron capture	9,919 ±67.53 keV

Point at nuclide Decay chain of Actinium-206

207AcActinium-207

Classification	z: 89; n: 118; m: 207
Half life	27 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(9/2-)
Decay modes	α decay
Discovery	1994
Mass excess	11,140 ±56.24 keV
Binding energy	7,681 ±0.2717 keV
Single-particle energy	-291.7 ±59.06 keV
Neutron separation energy	10,400 ±86.02 keV
Q value for electron capture	7,632 ±81 keV

Point at nuclide Decay chain of Actinium-207

208AcActinium-208

Classification	z: 89; n: 119; m: 208
Half life	95 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(3+)
Decay modes	α decay; electron capture (EC)
Discovery	1994
Mass excess	10,760 ±64.48 keV
Binding energy	7,684 ±0.31 keV
Single-particle energy	42.1 ±86.92 keV
Neutron separation energy	8,456 ±85.56 keV
Q value for electron capture	9,032 ±65.11 keV
β⁻ decay energy	-5,928 ±71.92 keV

Point at nuclide Decay chain of Actinium-208

209AcActinium-209

Classification	z: 89; n: 120; m: 209
Half life	0.087 ± s
Natural abundance	synthetic nuclide
Spin/parity	(9/2-)
Decay modes	α decay
Discovery	1968
Mass excess	8,844 ±55.84 keV
Binding energy	7,695 ±0.2672 keV
Single-particle energy	172 ±56.57 keV
Neutron separation energy	9,987 ±85.3 keV
Q value for electron capture	6,986 ±56.14 keV
β⁻ decay energy	-7,550 ±117 keV
β⁻ decay energy with neutron	-15,920 ±64.29 keV

Point at nuclide Decay chain of Actinium-209

210AcActinium-210

Classification	z: 89; n: 121; m: 210
Half life	0.35 ±5 s
Natural abundance	synthetic nuclide
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1968
Mass excess	8,764 ±62.2 keV
Binding energy	7,698 ±0.2962 keV
Single-particle energy	383.1 ±62.47 keV
Neutron separation energy	8,152 ±83.59 keV
Q value for electron capture	8,321 ±62.88 keV
β⁻ decay energy	-5,296 ±65.01 keV
β⁻ decay energy with neutron	-15,710 ±120 keV

Point at nuclide Decay chain of Actinium-210

211AcActinium-211

Classification	z: 89; n: 122; m: 211
Half life	0.21 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	9/2-
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1968
Mass excess	7,143 ±53.75 keV
Binding energy	7,707 ±0.2548 keV
Single-particle energy	588.3 ±54.53 keV
Neutron separation energy	9,691 ±82.21 keV
Q value for electron capture	6,311 ±53.98 keV
β⁻ decay energy	-6,733 ±101.4 keV
β⁻ decay energy with neutron	-14,990 ±56.98 keV

Point at nuclide Decay chain of Actinium-211

212AcActinium-212

Classification	z: 89; n: 123; m: 212
Half life	880 ±35 ms
Natural abundance	synthetic nuclide
Spin/parity	(7+)
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1968
Mass excess	7,299 ±21.88 keV
Binding energy	7,708 ±0.1032 keV
Single-particle energy	821.2 ±22.44 keV
Neutron separation energy	7,915 ±58.03 keV
Q value for electron capture	7,498 ±24.16 keV
β⁻ decay energy	-4,812 ±24.1 keV
β⁻ decay energy with neutron	-14,650 ±88.8 keV
Magnetic dipole moment	5 ±0.3 μN

Point at nuclide Decay chain of Actinium-212

213AcActinium-213

Classification	z: 89; n: 124; m: 213
Half life	738 ±16 ms
Natural abundance	synthetic nuclide
Spin/parity	9/2-
Decay modes	α decay
Discovery	1968
Mass excess	6,141 ±11.66 keV
Binding energy	7,715 ±0.0548 keV
Single-particle energy	949.1 ±15.52 keV
Neutron separation energy	9,229 ±24.79 keV
Q value for electron capture	5,795 ±15.24 keV
β⁻ decay energy	-5,980 ±14.86 keV
β⁻ decay energy with neutron	-14,050 ±15.42 keV
Magnetic dipole moment	4.2 ±0.4 μN

Point at nuclide Decay chain of Actinium-213

214AcActinium-214

Classification	z: 89; n: 125; m: 214
Half life	8.2 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	5(+)
Decay modes	α decay; electron capture (EC)
Discovery	1968
Mass excess	6,433 ±13.55 keV
Binding energy	7,715 ±0.0633 keV
Single-particle energy	1,201 ±16.73 keV
Neutron separation energy	7,779 ±17.84 keV
Q value for electron capture	6,340 ±14.53 keV
β⁻ decay energy	-4,262 ±17.23 keV
β⁻ decay energy with neutron	-13,760 ±16.38 keV
Magnetic dipole moment	4.83 ±0.2 μN
Electric quadrupole moment	0.14 ±0.08 b

Point at nuclide Decay chain of Actinium-214

215AcActinium-215

Classification	z: 89; n: 126; m: 215
Half life	0.17 ±1 s
Natural abundance	synthetic nuclide
Spin/parity	9/2-
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1968
Mass excess	6,030 ±12.4 keV
Binding energy	7,719 ±0.0577 keV
Single-particle energy	1,351 ±13.47 keV
Neutron separation energy	8,474 ±18.35 keV
Q value for electron capture	3,498 ±14.34 keV
β⁻ decay energy	-4,891 ±13.92 keV
β⁻ decay energy with neutron	-12,740 ±16.35 keV
Magnetic dipole moment	4.14 ±0.06 μN
Electric quadrupole moment	0.04 ±0.1 b

Point at nuclide Decay chain of Actinium-215

216AcActinium-216

Classification	z: 89; n: 127; m: 216
Half life	440 ±16 us
Natural abundance	synthetic nuclide
Spin/parity	(1-)
Decay modes	α decay
Discovery	1967
Mass excess	8,149 ±9.23 keV
Binding energy	7,711 ±0.0427 keV
Single-particle energy	1,671 ±11.7 keV
Neutron separation energy	5,952 ±15.45 keV
Q value for electron capture	4,858 ±12.21 keV
β⁻ decay energy	-2,149 ±14.43 keV
β⁻ decay energy with neutron	-10,850 ±11.19 keV

Point at nuclide Decay chain of Actinium-216

217AcActinium-217

Classification	z: 89; n: 128; m: 217
Half life	69 ±4 ns
Natural abundance	synthetic nuclide
Spin/parity	9/2-
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1972
Mass excess	8,702 ±11.22 keV
Binding energy	7,710 ±0.0517 keV
Single-particle energy	1,878 ±13.74 keV
Neutron separation energy	7,518 ±14.52 keV
Q value for electron capture	2,812 ±13.25 keV
β⁻ decay energy	-3,504 ±15.44 keV
β⁻ decay energy with neutron	-9,668 ±15.76 keV
Magnetic dipole moment	3.83 ±0.05 μN

Point at nuclide Decay chain of Actinium-217

218AcActinium-218

Classification	z: 89; n: 129; m: 218
Half life	1.03 ±5 us
Natural abundance	synthetic nuclide
Spin/parity	(1-)
Decay modes	α decay
Discovery	1970
Mass excess	10,850 ±57.61 keV
Binding energy	7,702 ±0.2643 keV
Single-particle energy	2,327 ±58.02 keV
Neutron separation energy	5,922 ±58.69 keV
Q value for electron capture	4,205 ±58.44 keV
β⁻ decay energy	-1,516 ±58.56 keV
β⁻ decay energy with neutron	-9,427 ±58.58 keV

Point at nuclide Decay chain of Actinium-218

219AcActinium-219

Classification	z: 89; n: 130; m: 219
Half life	11.8 ±15 us
Natural abundance	synthetic nuclide
Spin/parity	9/2-
Decay modes	α decay
Discovery	1970
Mass excess	11,560 ±51.47 keV
Binding energy	7,700 ±0.2351 keV
Single-particle energy	2,364 ±52.37 keV
Neutron separation energy	7,352 ±77.24 keV
Q value for electron capture	2,175 ±51.9 keV
β⁻ decay energy	-2,894 ±76.36 keV
β⁻ decay energy with neutron	-8,869 ±52.53 keV

Point at nuclide Decay chain of Actinium-219

220AcActinium-220

Classification	z: 89; n: 131; m: 220
Half life	26.4 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	(3-)
Decay modes	α decay; electron capture (EC)
Discovery	1970
Mass excess	13,740 ±6.129 keV
Binding energy	7,692 ±0.0279 keV
Single-particle energy	2,939 ±9.023 keV
Neutron separation energy	5,897 ±51.8 keV
Q value for electron capture	3,471 ±9.76 keV
β⁻ decay energy	-945.8 ±14.91 keV
β⁻ decay energy with neutron	-8,791 ±56.76 keV

Point at nuclide Decay chain of Actinium-220

221AcActinium-221

Classification	z: 89; n: 132; m: 221
Half life	52 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	(3/2-)
Decay modes	α decay
Discovery	1968
Mass excess	14,530 ±56.9 keV
Binding energy	7,690 ±0.2575 keV
Single-particle energy	3,030 ±57.38 keV
Neutron separation energy	7,284 ±57.19 keV
Q value for electron capture	1,567 ±57.08 keV
β⁻ decay energy	-2,409 ±57.43 keV
β⁻ decay energy with neutron	-8,230 ±58.5 keV

Point at nuclide Decay chain of Actinium-221

222AcActinium-222

Classification	z: 89; n: 133; m: 222
Half life	5 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	1-
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1949
Mass excess	16,620 ±4.699 keV
Binding energy	7,682 ±0.0212 keV
Single-particle energy	3,631 ±6.33 keV
Neutron separation energy	5,980 ±57.06 keV
Q value for electron capture	2,301 ±6.474 keV
β⁻ decay energy	-581.3 ±11.12 keV
β⁻ decay energy with neutron	-8,390 ±9.132 keV

Point at nuclide Decay chain of Actinium-222

223AcActinium-223

Classification	z: 89; n: 134; m: 223
Half life	2.1 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	(5/2-)
Decay modes	α decay; electron capture (EC)
Discovery	1948
Mass excess	17,820 ±6.947 keV
Binding energy	7,679 ±0.0312 keV
Single-particle energy	3,784 ±8.154 keV
Neutron separation energy	6,868 ±8.283 keV
Q value for electron capture	591.8 ±7.25 keV
β⁻ decay energy	-1,561 ±10.47 keV
β⁻ decay energy with neutron	-7,450 ±12.28 keV

Point at nuclide Decay chain of Actinium-223

224AcActinium-224

Classification	z: 89; n: 135; m: 224
Half life	2.78 ±16 h
Natural abundance	synthetic nuclide
Spin/parity	(0-)
Decay modes	electron capture (EC); α decay
Discovery	1948
Mass excess	20,230 ±4.089 keV
Binding energy	7,670 ±0.0183 keV
Single-particle energy	4,288 ±4.441 keV
Neutron separation energy	5,662 ±7.954 keV
Q value for electron capture	1,408 ±4.472 keV
β⁻ decay energy	238.5 ±10.34 keV
β⁻ decay energy with neutron	-7,223 ±8.823 keV

Point at nuclide Decay chain of Actinium-224

225AcActinium-225

Classification	z: 89; n: 136; m: 225
Half life	9.92 ±3 d
Natural abundance	synthetic nuclide
Spin/parity	(3/2-)
Decay modes	α decay; other decay
Discovery	1947
Mass excess	21,630 ±4.758 keV
Binding energy	7,665 ±0.0211 keV
Single-particle energy	4,477 ±4.867 keV
Neutron separation energy	6,668 ±6.158 keV
Q value for electron capture	-355.8 ±5.42 keV
β⁻ decay energy	-672.9 ±6.657 keV
β⁻ decay energy with neutron	-6,430 ±10.67 keV

Point at nuclide Decay chain of Actinium-225

226AcActinium-226

Classification	z: 89; n: 137; m: 226
Half life	29.37 ±12 h
Natural abundance	synthetic nuclide
Spin/parity	(1)
Decay modes	β⁻ decay; electron capture (EC); α decay
Discovery	1950
Mass excess	24,300 ±3.1 keV
Binding energy	7,655 ±0.0137 keV
Single-particle energy	4,972 ±3.77 keV
Neutron separation energy	5,399 ±5.501 keV
Q value for electron capture	641.6 ±3.65 keV
β⁻ decay energy	1,111 ±4.562 keV
β⁻ decay energy with neutron	-6,073 ±5.876 keV

Point at nuclide Decay chain of Actinium-226

227AcActinium-227

Classification	z: 89; n: 138; m: 227
Half life	21.77 ±3 a
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	β⁻ decay; α decay
Discovery	1851
Mass excess	25,840 ±1.926 keV
Binding energy	7,650 ±0.0085 keV
Single-particle energy	5,107 ±2.246 keV
Neutron separation energy	6,531 ±3.335 keV
Q value for electron capture	-1,328 ±2.738 keV
β⁻ decay energy	44.75 ±0.8297 keV
β⁻ decay energy with neutron	-5,420 ±4.746 keV
Magnetic dipole moment	1.1 μN
Electric quadrupole moment	1.74 ±0.1 b

Point at nuclide Decay chain of Actinium-227

228AcActinium-228

Classification	z: 89; n: 139; m: 228
Half life	6.15 ±2 h
Natural abundance	synthetic nuclide
Spin/parity	3+
Decay modes	β⁻ decay
Discovery	1908
Mass excess	28,890 ±2.093 keV
Binding energy	7,639 ±0.0092 keV
Single-particle energy	5,571 ±2.419 keV
Neutron separation energy	5,026 ±2.424 keV
Q value for electron capture	-45.54 ±2.89 keV
β⁻ decay energy	2,123 ±2.644 keV
β⁻ decay energy with neutron	-4,982 ±2.556 keV

Point at nuclide Decay chain of Actinium-228

229AcActinium-229

Classification	z: 89; n: 140; m: 229
Half life	62.7 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	β⁻ decay
Discovery	1952
Mass excess	30,680 ±12.1 keV
Binding energy	7,633 ±0.0529 keV
Single-particle energy	5,539 ±12.27 keV
Neutron separation energy	6,276 ±12.28 keV
Q value for electron capture	-1,873 ±19.62 keV
β⁻ decay energy	1,104 ±12.34 keV
β⁻ decay energy with neutron	-4,153 ±12.24 keV

Point at nuclide Decay chain of Actinium-229

230AcActinium-230

Classification	z: 89; n: 141; m: 230
Half life	122 ±3 s
Natural abundance	synthetic nuclide
Spin/parity	(1+)
Decay modes	β⁻ decay; β⁻ decay + spontaneous fission
Discovery	1973
Mass excess	33,830 ±15.83 keV
Binding energy	7,621 ±0.0689 keV
Single-particle energy	6,012 ±22.11 keV
Neutron separation energy	4,922 ±19.93 keV
Q value for electron capture	-678 ±18.88 keV
β⁻ decay energy	2,975 ±15.88 keV
β⁻ decay energy with neutron	-3,819 ±16.01 keV

Point at nuclide Decay chain of Actinium-230

231AcActinium-231

Classification	z: 89; n: 142; m: 231
Half life	7.5 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	β⁻ decay
Discovery	1973
Mass excess	35,760 ±13.04 keV
Binding energy	7,615 ±0.0565 keV
Single-particle energy	6,042 ±16.61 keV
Neutron separation energy	6,146 ±20.51 keV
Q value for electron capture	-2,454 ±17.3 keV
β⁻ decay energy	1,947 ±13.09 keV
β⁻ decay energy with neutron	-3,171 ±13.09 keV

Point at nuclide Decay chain of Actinium-231

232AcActinium-232

Classification	z: 89; n: 143; m: 232
Half life	119 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	(1+)
Decay modes	β⁻ decay
Discovery	1986
Mass excess	39,150 ±13.04 keV
Binding energy	7,602 ±0.0562 keV
Single-particle energy	6,351 ±17.3 keV
Neutron separation energy	4,679 ±18.44 keV
Q value for electron capture	-1,343 ±15.93 keV
β⁻ decay energy	3,707 ±13.11 keV
β⁻ decay energy with neutron	-2,733 ±13.09 keV

Point at nuclide Decay chain of Actinium-232

233AcActinium-233

Classification	z: 89; n: 144; m: 233
Half life	143 ±10 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	β⁻ decay
Discovery	1983
Mass excess	41,300 ±13.04 keV
Binding energy	7,595 ±0.056 keV
Single-particle energy	6,477 ±15.93 keV
Neutron separation energy	5,917 ±18.44 keV
Q value for electron capture	-3,027 ±15.62 keV
β⁻ decay energy	2,576 ±13.11 keV
β⁻ decay energy with neutron	-2,210 ±13.11 keV

Point at nuclide Decay chain of Actinium-233

234AcActinium-234

Classification	z: 89; n: 145; m: 234
Half life	44 ±7 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay
Discovery	1986
Mass excess	44,840 ±13.97 keV
Binding energy	7,582 ±0.0597 keV
Single-particle energy	6,781 ±16.4 keV
Neutron separation energy	4,538 ±19.11 keV
Q value for electron capture	-2,090 ±16.29 keV
β⁻ decay energy	4,228 ±14.21 keV
β⁻ decay energy with neutron	-1,962 ±14.04 keV

Point at nuclide Decay chain of Actinium-234

235AcActinium-235

Classification	z: 89; n: 146; m: 235
Half life	62 ±4 s
Natural abundance	synthetic nuclide
Discovery	2006
Mass excess	47,350 ±13.97 keV
Binding energy	7,573 ±0.0595 keV
Single-particle energy	6,862 ±16.29 keV
Neutron separation energy	5,555 ±19.76 keV
β⁻ decay energy	3,339 ±19.11 keV
β⁻ decay energy with neutron	-1,328 ±14.21 keV

Point at nuclide

236AcActinium-236

Classification	z: 89; n: 147; m: 236
Half life	1.2 ± m
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay
Discovery	2010
Mass excess	51,220 ±38.19 keV
Binding energy	7,559 ±0.1618 keV
Single-particle energy	7,198 ±302 keV
Neutron separation energy	4,207 ±40.66 keV
β⁻ decay energy	4,965 ±40.66 keV
β⁻ decay energy with neutron	-868.1 ±40.35 keV

Point at nuclide Decay chain of Actinium-236

Isotopes of Actinium

205AcActinium-205ads_clickcall_splitdownload

206AcActinium-206ads_clickcall_splitdownload

207AcActinium-207ads_clickcall_splitdownload

208AcActinium-208ads_clickcall_splitdownload

209AcActinium-209ads_clickcall_splitdownload

210AcActinium-210ads_clickcall_splitdownload

211AcActinium-211ads_clickcall_splitdownload

212AcActinium-212ads_clickcall_splitdownload

213AcActinium-213ads_clickcall_splitdownload

214AcActinium-214ads_clickcall_splitdownload

215AcActinium-215ads_clickcall_splitdownload

216AcActinium-216ads_clickcall_splitdownload

217AcActinium-217ads_clickcall_splitdownload

218AcActinium-218ads_clickcall_splitdownload

219AcActinium-219ads_clickcall_splitdownload

220AcActinium-220ads_clickcall_splitdownload

221AcActinium-221ads_clickcall_splitdownload

222AcActinium-222ads_clickcall_splitdownload

223AcActinium-223ads_clickcall_splitdownload

224AcActinium-224ads_clickcall_splitdownload

225AcActinium-225ads_clickcall_splitdownload

226AcActinium-226ads_clickcall_splitdownload

227AcActinium-227ads_clickcall_splitdownload

228AcActinium-228ads_clickcall_splitdownload

229AcActinium-229ads_clickcall_splitdownload

230AcActinium-230ads_clickcall_splitdownload

231AcActinium-231ads_clickcall_splitdownload

232AcActinium-232ads_clickcall_splitdownload

233AcActinium-233ads_clickcall_splitdownload

234AcActinium-234ads_clickcall_splitdownload

235AcActinium-235ads_clickdownload

236AcActinium-236ads_clickcall_splitdownload

205AcActinium-205

206AcActinium-206

207AcActinium-207

208AcActinium-208

209AcActinium-209

210AcActinium-210

211AcActinium-211

212AcActinium-212

213AcActinium-213

214AcActinium-214

215AcActinium-215

216AcActinium-216

217AcActinium-217

218AcActinium-218

219AcActinium-219

220AcActinium-220

221AcActinium-221

222AcActinium-222

223AcActinium-223

224AcActinium-224

225AcActinium-225

226AcActinium-226

227AcActinium-227

228AcActinium-228

229AcActinium-229

230AcActinium-230

231AcActinium-231

232AcActinium-232

233AcActinium-233

234AcActinium-234

235AcActinium-235

236AcActinium-236