Isotopes of Radium

List of known isotopes of the element Radium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
²⁰¹Ra	8 ± ms	syn.	3/2-	—	2.01·10⁸ ±21.79 keV/c²	2005
²⁰²Ra	16 ± ms	syn.	0+	—	2.02·10⁸ ±16.12 keV/c²	2005
²⁰³Ra	31 ± ms	syn.	3/2-	—	2.03·10⁸ ±10.4 keV/c²	1996
²⁰⁴Ra	57 ± ms	syn.	0+	—	2.04·10⁸ ±9.58 keV/c²	1995
²⁰⁵Ra	210 ± ms	syn.	(3/2-)	—	2.05·10⁸ ±24.44 keV/c²	1987
²⁰⁶Ra	0.24 ±2 s	syn.	0+	—	2.06·10⁸ ±19.33 keV/c²	1967
²⁰⁷Ra	1.35 ± s	syn.	(3/2- 5/2-)	—	2.07·10⁸ ±62.57 keV/c²	1967
²⁰⁸Ra	1.3 ±2 s	syn.	0+	5.585 ±0.0183 fm	2.08·10⁸ ±9.686 keV/c²	1967
²⁰⁹Ra	4.8 ±2 s	syn.	5/2-	5.585 ±0.0182 fm	2.09·10⁸ ±6.169 keV/c²	1967
²¹⁰Ra	3.7 ±2 s	syn.	0+	5.591 ±0.018 fm	2.1·10⁸ ±9.868 keV/c²	1967
²¹¹Ra	13 ±2 s	syn.	5/2(-)	5.592 ±0.0179 fm	2.11·10⁸ ±5.331 keV/c²	1967
²¹²Ra	13 ±2 s	syn.	0+	5.599 ±0.0177 fm	2.119·10⁸ ±11 keV/c²	1967
²¹³Ra	2.73 ±5 m	syn.	1/2-	5.602 ±0.0177 fm	2.13·10⁸ ±10.54 keV/c²	1955
²¹⁴Ra	2.438 ±20 s	syn.	0+	5.607 ±0.0177 fm	2.14·10⁸ ±5.636 keV/c²	1967
²¹⁵Ra	1.66 ±2 ms	syn.	(9/2+)	—	2.15·10⁸ ±7.73 keV/c²	1967
²¹⁶Ra	182 ±10 ns	syn.	0+	—	2.16·10⁸ ±8.592 keV/c²	1972
²¹⁷Ra	1.6 ±2 us	syn.	(9/2+)	—	2.17·10⁸ ±7.564 keV/c²	1970
²¹⁸Ra	25.91 ±14 us	syn.	0+	—	2.18·10⁸ ±10.52 keV/c²	1970
²¹⁹Ra	9 ±2 ms	syn.	(7/2+)	—	2.19·10⁸ ±7.315 keV/c²	1952
²²⁰Ra	18 ±2 ms	syn.	0+	5.668 ±0.0215 fm	2.2·10⁸ ±8.153 keV/c²	1949
²²¹Ra	28 ±2 s	syn.	5/2+	5.679 ±0.0228 fm	2.21·10⁸ ±4.97 keV/c²	1949
²²²Ra	38 ±5 s	syn.	0+	5.687 ±0.0239 fm	2.22·10⁸ ±4.781 keV/c²	1948
²²³Ra	11.43 ±5 d	syn.	3/2+	5.697 ±0.0253 fm	2.23·10⁸ ±2.243 keV/c²	1905
²²⁴Ra	3.631 ±23 d	syn.	0+	5.704 ±0.0263 fm	2.24·10⁸ ±1.944 keV/c²	1902
²²⁵Ra	14.9 ±2 d	syn.	1/2+	5.715 ±0.0279 fm	2.25·10⁸ ±2.786 keV/c²	1947
²²⁶Ra	1,600 ±7 a	syn.	0+	5.721 ±0.0288 fm	2.26·10⁸ ±2.068 keV/c²	1898
²²⁷Ra	42.2 ±5 m	syn.	3/2+	5.728 ±0.03 fm	2.27·10⁸ ±2.089 keV/c²	1953
²²⁸Ra	5.75 ±3 a	syn.	0+	5.737 ±0.0315 fm	2.28·10⁸ ±2.141 keV/c²	1907
²²⁹Ra	4 ±2 m	syn.	5/2+	5.745 ±0.0329 fm	2.29·10⁸ ±16.57 keV/c²	1975
²³⁰Ra	93 ±2 m	syn.	0+	5.755 ±0.0346 fm	2.3·10⁸ ±11.05 keV/c²	1978
²³¹Ra	103.9 ±14 s	syn.	(5/2+)	—	2.31·10⁸ ±12.2 keV/c²	1983
²³²Ra	4.2 ±8 m	syn.	0+	5.771 ±0.0375 fm	2.32·10⁸ ±9.823 keV/c²	1983
²³³Ra	30 ±5 s	syn.	(1/2+)	—	2.33·10⁸ ±9.235 keV/c²	1990
²³⁴Ra	30 ±10 s	syn.	0+	—	2.34·10⁸ ±9 keV/c²	1990

201RaRadium-201

Classification	z: 88; n: 113; m: 201
Half life	8 ± ms
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	α decay
Discovery	2005
Mass excess	11,930 ±20.3 keV
Binding energy	7,669 ±0.101 keV
Single-particle energy	1,485 ±36.65 keV
Q value for electron capture	8,348 ±22.23 keV

Point at nuclide Decay chain of Radium-201

202RaRadium-202

Classification	z: 88; n: 114; m: 202
Half life	16 ± ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	2005
Mass excess	9,074 ±15.01 keV
Binding energy	7,685 ±0.0743 keV
Single-particle energy	1,802 ±17.54 keV
Neutron separation energy	10,930 ±25.24 keV
Q value for electron capture	5,973 ±16.18 keV

Point at nuclide Decay chain of Radium-202

203RaRadium-203

Classification	z: 88; n: 115; m: 203
Half life	31 ± ms
Natural abundance	synthetic nuclide
Spin/parity	3/2-
Decay modes	α decay
Discovery	1996
Mass excess	8,601 ±9.688 keV
Binding energy	7,689 ±0.0477 keV
Single-particle energy	1,789 ±11.41 keV
Neutron separation energy	8,544 ±17.87 keV
Q value for electron capture	7,724 ±11.51 keV

Point at nuclide Decay chain of Radium-203

204RaRadium-204

Classification	z: 88; n: 116; m: 204
Half life	57 ± ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1995
Mass excess	6,061 ±8.924 keV
Binding energy	7,704 ±0.0437 keV
Single-particle energy	2,104 ±10.88 keV
Neutron separation energy	10,610 ±13.17 keV
Q value for electron capture	5,453 ±26.15 keV

Point at nuclide Decay chain of Radium-204

205RaRadium-205

Classification	z: 88; n: 117; m: 205
Half life	210 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(3/2-)
Decay modes	α decay
Discovery	1987
Mass excess	5,803 ±22.77 keV
Binding energy	7,707 ±0.1111 keV
Single-particle energy	2,092 ±33.5 keV
Neutron separation energy	8,328 ±24.45 keV
Q value for electron capture	7,113 ±24.07 keV
β⁻ decay energy	-8,303 ±63.54 keV

Point at nuclide Decay chain of Radium-205

206RaRadium-206

Classification	z: 88; n: 118; m: 206
Half life	0.24 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1967
Mass excess	3,565 ±18 keV
Binding energy	7,719 ±0.0874 keV
Single-particle energy	2,413 ±19.63 keV
Neutron separation energy	10,300 ±29.03 keV
Q value for electron capture	4,812 ±33.13 keV
β⁻ decay energy	-9,920 ±67.53 keV
β⁻ decay energy with neutron	-18,620 ±61.99 keV

Point at nuclide Decay chain of Radium-206

207RaRadium-207

Classification	z: 88; n: 119; m: 207
Half life	1.35 ± s
Natural abundance	synthetic nuclide
Spin/parity	(3/2- 5/2-)
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1967
Mass excess	3,513 ±58.28 keV
Binding energy	7,721 ±0.2816 keV
Single-particle energy	2,528 ±64.58 keV
Neutron separation energy	8,122 ±61 keV
Q value for electron capture	6,363 ±60.87 keV
β⁻ decay energy	-7,633 ±81 keV
β⁻ decay energy with neutron	-18,050 ±87.37 keV

Point at nuclide Decay chain of Radium-207

208RaRadium-208

Classification	z: 88; n: 120; m: 208
Half life	1.3 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1967
Mass excess	1,727 ±9.023 keV
Binding energy	7,732 ±0.0434 keV
Single-particle energy	2,712 ±19.73 keV
Neutron separation energy	9,857 ±58.97 keV
Q value for electron capture	4,392 ±14.74 keV
β⁻ decay energy	-9,033 ±65.11 keV
β⁻ decay energy with neutron	-17,490 ±56.96 keV

Point at nuclide Decay chain of Radium-208

209RaRadium-209

Classification	z: 88; n: 121; m: 209
Half life	4.8 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	5/2-
Decay modes	α decay
Discovery	1967
Mass excess	1,858 ±5.747 keV
Binding energy	7,733 ±0.0275 keV
Single-particle energy	2,765 ±12.99 keV
Neutron separation energy	7,941 ±10.65 keV
Q value for electron capture	5,640 ±12.85 keV
β⁻ decay energy	-6,987 ±56.14 keV
β⁻ decay energy with neutron	-16,980 ±64.73 keV
Magnetic dipole moment	0.861 ±0.013 μN
Electric quadrupole moment	0.39 ±0.04 b

Point at nuclide Decay chain of Radium-209

210RaRadium-210

Classification	z: 88; n: 122; m: 210
Half life	3.7 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1967
Mass excess	442.8 ±9.193 keV
Binding energy	7,741 ±0.0438 keV
Single-particle energy	3,063 ±14.71 keV
Neutron separation energy	9,486 ±10.81 keV
Q value for electron capture	3,786 ±16.26 keV
β⁻ decay energy	-8,322 ±62.88 keV
β⁻ decay energy with neutron	-16,480 ±56.59 keV

Point at nuclide Decay chain of Radium-210

211RaRadium-211

Classification	z: 88; n: 123; m: 211
Half life	13 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	5/2(-)
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1967
Mass excess	831.8 ±4.966 keV
Binding energy	7,741 ±0.0235 keV
Single-particle energy	3,113 ±14.3 keV
Neutron separation energy	7,682 ±10.44 keV
Q value for electron capture	4,972 ±12.97 keV
β⁻ decay energy	-6,312 ±53.98 keV
β⁻ decay energy with neutron	-16,010 ±62.4 keV
Magnetic dipole moment	0.874 ±0.004 μN
Electric quadrupole moment	0.46 ±0.04 b

Point at nuclide Decay chain of Radium-211

212RaRadium-212

Classification	z: 88; n: 124; m: 212
Half life	13 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1967
Mass excess	-198.8 ±10.25 keV
Binding energy	7,747 ±0.0484 keV
Single-particle energy	3,347 ±15.77 keV
Neutron separation energy	9,101 ±11.39 keV
Q value for electron capture	3,317 ±13.49 keV
β⁻ decay energy	-7,499 ±24.16 keV
β⁻ decay energy with neutron	-15,420 ±54.72 keV

Point at nuclide Decay chain of Radium-212

213RaRadium-213

Classification	z: 88; n: 125; m: 213
Half life	2.73 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	1/2-
Decay modes	α decay; electron capture + β⁺ decay
Discovery	1955
Mass excess	345.5 ±9.818 keV
Binding energy	7,746 ±0.0461 keV
Single-particle energy	3,427 ±13.16 keV
Neutron separation energy	7,526 ±14.19 keV
Q value for electron capture	3,899 ±10.88 keV
β⁻ decay energy	-5,796 ±15.24 keV
β⁻ decay energy with neutron	-15,030 ±23.98 keV
Magnetic dipole moment	0.61 ±0.002 μN

Point at nuclide Decay chain of Radium-213

214RaRadium-214

Classification	z: 88; n: 126; m: 214
Half life	2.438 ±20 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture (EC)
Discovery	1967
Mass excess	92.74 ±5.25 keV
Binding energy	7,749 ±0.0245 keV
Single-particle energy	3,642 ±7.04 keV
Neutron separation energy	8,324 ±11.13 keV
Q value for electron capture	1,051 ±10 keV
β⁻ decay energy	-6,341 ±14.53 keV
β⁻ decay energy with neutron	-14,120 ±12.78 keV

Point at nuclide Decay chain of Radium-214

215RaRadium-215

Classification	z: 88; n: 127; m: 215
Half life	1.66 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	(9/2+)
Decay modes	α decay
Discovery	1967
Mass excess	2,531 ±7.201 keV
Binding energy	7,739 ±0.0335 keV
Single-particle energy	3,798 ±11.03 keV
Neutron separation energy	5,632 ±8.89 keV
Q value for electron capture	2,213 ±10.08 keV
β⁻ decay energy	-3,499 ±14.33 keV
β⁻ decay energy with neutron	-11,980 ±15.33 keV

Point at nuclide Decay chain of Radium-215

216RaRadium-216

Classification	z: 88; n: 128; m: 216
Half life	182 ±10 ns
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; electron capture (EC)
Discovery	1972
Mass excess	3,291 ±8.004 keV
Binding energy	7,737 ±0.0371 keV
Single-particle energy	4,315 ±10.56 keV
Neutron separation energy	7,311 ±10.65 keV
Q value for electron capture	320.4 ±9.027 keV
β⁻ decay energy	-4,859 ±12.21 keV
β⁻ decay energy with neutron	-10,820 ±14.75 keV

Point at nuclide Decay chain of Radium-216

217RaRadium-217

Classification	z: 88; n: 129; m: 217
Half life	1.6 ±2 us
Natural abundance	synthetic nuclide
Spin/parity	(9/2+)
Decay modes	α decay
Discovery	1970
Mass excess	5,889 ±7.047 keV
Binding energy	7,726 ±0.0325 keV
Single-particle energy	4,370 ±8.03 keV
Neutron separation energy	5,473 ±10.54 keV
Q value for electron capture	1,574 ±9.608 keV
β⁻ decay energy	-2,813 ±13.21 keV
β⁻ decay energy with neutron	-10,340 ±11.6 keV

Point at nuclide Decay chain of Radium-217

218RaRadium-218

Classification	z: 88; n: 130; m: 218
Half life	25.91 ±14 us
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1970
Mass excess	6,645 ±9.807 keV
Binding energy	7,725 ±0.045 keV
Single-particle energy	4,958 ±11.67 keV
Neutron separation energy	7,315 ±11.96 keV
Q value for electron capture	-413.9 ±10.68 keV
β⁻ decay energy	-4,206 ±58.42 keV
β⁻ decay energy with neutron	-10,130 ±14.86 keV

Point at nuclide Decay chain of Radium-218

219RaRadium-219

Classification	z: 88; n: 131; m: 219
Half life	9 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	(7/2+)
Decay modes	α decay
Discovery	1952
Mass excess	9,393 ±6.814 keV
Binding energy	7,714 ±0.0311 keV
Single-particle energy	4,954 ±7.86 keV
Neutron separation energy	5,323 ±11.83 keV
Q value for electron capture	776.9 ±9.679 keV
β⁻ decay energy	-2,176 ±51.9 keV
β⁻ decay energy with neutron	-9,529 ±57.99 keV

Point at nuclide Decay chain of Radium-219

220RaRadium-220

Classification	z: 88; n: 132; m: 220
Half life	18 ±2 ms
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1949
Mass excess	10,270 ±7.595 keV
Binding energy	7,711 ±0.0345 keV
Single-particle energy	5,633 ±10.16 keV
Neutron separation energy	7,193 ±10.07 keV
Q value for electron capture	-1,211 ±8.597 keV
β⁻ decay energy	-3,472 ±9.626 keV
β⁻ decay energy with neutron	-9,369 ±52 keV

Point at nuclide Decay chain of Radium-220

221RaRadium-221

Classification	z: 88; n: 133; m: 221
Half life	28 ±2 s
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	α decay
Discovery	1949
Mass excess	12,960 ±4.63 keV
Binding energy	7,701 ±0.021 keV
Single-particle energy	5,807 ±5.98 keV
Neutron separation energy	5,379 ±8.755 keV
Q value for electron capture	-313.4 ±6.731 keV
β⁻ decay energy	-1,568 ±57.05 keV
β⁻ decay energy with neutron	-8,852 ±7.453 keV
Magnetic dipole moment	-0.179 ±0.0017 μN
Electric quadrupole moment	1.92 ±0.06 b

Point at nuclide Decay chain of Radium-221

222RaRadium-222

Classification	z: 88; n: 134; m: 222
Half life	38 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; other decay
Discovery	1948
Mass excess	14,320 ±4.454 keV
Binding energy	7,696 ±0.0201 keV
Single-particle energy	6,246 ±6.499 keV
Neutron separation energy	6,714 ±6.233 keV
Q value for electron capture	-2,058 ±8.682 keV
β⁻ decay energy	-2,302 ±6.273 keV
β⁻ decay energy with neutron	-8,283 ±57.05 keV

Point at nuclide Decay chain of Radium-222

223RaRadium-223

Classification	z: 88; n: 135; m: 223
Half life	11.43 ±5 d
Natural abundance	synthetic nuclide
Spin/parity	3/2+
Decay modes	α decay; other decay; other decay
Discovery	1905
Mass excess	17,230 ±2.09 keV
Binding energy	7,685 ±0.0094 keV
Single-particle energy	6,433 ±7.739 keV
Neutron separation energy	5,158 ±4.792 keV
Q value for electron capture	-1,150 ±2.845 keV
β⁻ decay energy	-591.9 ±6.965 keV
β⁻ decay energy with neutron	-7,460 ±5.088 keV
Magnetic dipole moment	0.2692 ±8·10^-4 μN
Electric quadrupole moment	1.22 ±0.03 b

Point at nuclide Decay chain of Radium-223

224RaRadium-224

Classification	z: 88; n: 136; m: 224
Half life	3.631 ±23 d
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; other decay
Discovery	1902
Mass excess	18,820 ±1.811 keV
Binding energy	7,679 ±0.0081 keV
Single-particle energy	6,845 ±2.113 keV
Neutron separation energy	6,478 ±2.26 keV
Q value for electron capture	-2,923 ±11.32 keV
β⁻ decay energy	-1,409 ±4.086 keV
β⁻ decay energy with neutron	-7,071 ±7.061 keV
Magnetic dipole moment	0.9 ±0.2 μN

Point at nuclide Decay chain of Radium-224

225RaRadium-225

Classification	z: 88; n: 137; m: 225
Half life	14.9 ±2 d
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	β⁻ decay; α decay
Discovery	1947
Mass excess	21,990 ±2.596 keV
Binding energy	7,667 ±0.0115 keV
Single-particle energy	7,044 ±11.47 keV
Neutron separation energy	4,904 ±2.792 keV
Q value for electron capture	-1,828 ±12.24 keV
β⁻ decay energy	355.7 ±5.006 keV
β⁻ decay energy with neutron	-6,313 ±4.721 keV
Magnetic dipole moment	-0.73 ±0.002 μN

Point at nuclide Decay chain of Radium-225

226RaRadium-226

Classification	z: 88; n: 138; m: 226
Half life	1,600 ±7 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; other decay
Discovery	1898
Mass excess	23,660 ±1.927 keV
Binding energy	7,661 ±0.0085 keV
Single-particle energy	7,441 ±12.1 keV
Neutron separation energy	6,396 ±2.851 keV
Q value for electron capture	-3,853 ±6.521 keV
β⁻ decay energy	-641.7 ±3.273 keV
β⁻ decay energy with neutron	-6,042 ±4.928 keV

Point at nuclide Decay chain of Radium-226

227RaRadium-227

Classification	z: 88; n: 139; m: 227
Half life	42.2 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	3/2+
Decay modes	β⁻ decay
Discovery	1953
Mass excess	27,170 ±1.946 keV
Binding energy	7,648 ±0.0086 keV
Single-particle energy	7,632 ±6.527 keV
Neutron separation energy	4,561 ±0.27 keV
Q value for electron capture	-2,505 ±6.211 keV
β⁻ decay energy	1,327 ±2.262 keV
β⁻ decay energy with neutron	-5,204 ±3.284 keV
Magnetic dipole moment	-0.401 ±0.0011 μN
Electric quadrupole moment	1.53 ±0.06 b

Point at nuclide Decay chain of Radium-227

228RaRadium-228

Classification	z: 88; n: 140; m: 228
Half life	5.75 ±3 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1907
Mass excess	28,940 ±1.995 keV
Binding energy	7,642 ±0.0088 keV
Single-particle energy	8,031 ±6.226 keV
Neutron separation energy	6,308 ±2.334 keV
Q value for electron capture	-4,445 ±7.021 keV
β⁻ decay energy	45.54 ±0.6344 keV
β⁻ decay energy with neutron	-4,981 ±2.339 keV

Point at nuclide Decay chain of Radium-228

229RaRadium-229

Classification	z: 88; n: 141; m: 229
Half life	4 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	β⁻ decay; α decay
Discovery	1975
Mass excess	32,560 ±15.44 keV
Binding energy	7,628 ±0.0674 keV
Single-particle energy	8,111 ±16.84 keV
Neutron separation energy	4,449 ±15.56 keV
Q value for electron capture	-3,107 ±16.23 keV
β⁻ decay energy	1,872 ±19.62 keV
β⁻ decay energy with neutron	-4,405 ±15.58 keV
Magnetic dipole moment	0.4992 ±0.0014 μN
Electric quadrupole moment	2.99 ±0.12 b

Point at nuclide Decay chain of Radium-229

230RaRadium-230

Classification	z: 88; n: 142; m: 230
Half life	93 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1978
Mass excess	34,510 ±10.29 keV
Binding energy	7,621 ±0.0448 keV
Single-particle energy	8,440 ±11.44 keV
Neutron separation energy	6,116 ±18.55 keV
Q value for electron capture	-4,971 ±12.19 keV
β⁻ decay energy	677.9 ±18.88 keV
β⁻ decay energy with neutron	-4,245 ±15.89 keV

Point at nuclide Decay chain of Radium-230

231RaRadium-231

Classification	z: 88; n: 143; m: 231
Half life	103.9 ±14 s
Natural abundance	synthetic nuclide
Spin/parity	(5/2+)
Decay modes	β⁻ decay
Discovery	1983
Mass excess	38,210 ±11.37 keV
Binding energy	7,607 ±0.0492 keV
Single-particle energy	8,559 ±13.11 keV
Neutron separation energy	4,371 ±15.33 keV
Q value for electron capture	-3,865 ±13.74 keV
β⁻ decay energy	2,453 ±17.3 keV
β⁻ decay energy with neutron	-3,694 ±19.49 keV
Magnetic dipole moment	-0.3554 ±0.0011 μN

Point at nuclide Decay chain of Radium-231

232RaRadium-232

Classification	z: 88; n: 144; m: 232
Half life	4.2 ±8 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1983
Mass excess	40,490 ±9.151 keV
Binding energy	7,600 ±0.0394 keV
Single-particle energy	8,872 ±11.97 keV
Neutron separation energy	5,790 ±14.59 keV
Q value for electron capture	-5,576 ±16.7 keV
β⁻ decay energy	1,342 ±15.93 keV
β⁻ decay energy with neutron	-3,338 ±15.93 keV

Point at nuclide Decay chain of Radium-232

233RaRadium-233

Classification	z: 88; n: 145; m: 233
Half life	30 ±5 s
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	β⁻ decay
Discovery	1990
Mass excess	44,330 ±8.603 keV
Binding energy	7,585 ±0.0369 keV
Single-particle energy	9,027 ±16.4 keV
Neutron separation energy	4,234 ±12.55 keV
Q value for electron capture	-4,586 ±21.36 keV
β⁻ decay energy	3,026 ±15.62 keV
β⁻ decay energy with neutron	-2,892 ±15.62 keV

Point at nuclide Decay chain of Radium-233

234RaRadium-234

Classification	z: 88; n: 146; m: 234
Half life	30 ±10 s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1990
Mass excess	46,930 ±8.383 keV
Binding energy	7,576 ±0.0358 keV
Single-particle energy	9,278 ±21.28 keV
Neutron separation energy	5,474 ±12.01 keV
β⁻ decay energy	2,089 ±16.29 keV
β⁻ decay energy with neutron	-2,449 ±15.5 keV

Point at nuclide Decay chain of Radium-234

Isotopes of Radium

201RaRadium-201ads_clickcall_splitdownload

202RaRadium-202ads_clickcall_splitdownload

203RaRadium-203ads_clickcall_splitdownload

204RaRadium-204ads_clickcall_splitdownload

205RaRadium-205ads_clickcall_splitdownload

206RaRadium-206ads_clickcall_splitdownload

207RaRadium-207ads_clickcall_splitdownload

208RaRadium-208ads_clickcall_splitdownload

209RaRadium-209ads_clickcall_splitdownload

210RaRadium-210ads_clickcall_splitdownload

211RaRadium-211ads_clickcall_splitdownload

212RaRadium-212ads_clickcall_splitdownload

213RaRadium-213ads_clickcall_splitdownload

214RaRadium-214ads_clickcall_splitdownload

215RaRadium-215ads_clickcall_splitdownload

216RaRadium-216ads_clickcall_splitdownload

217RaRadium-217ads_clickcall_splitdownload

218RaRadium-218ads_clickcall_splitdownload

219RaRadium-219ads_clickcall_splitdownload

220RaRadium-220ads_clickcall_splitdownload

221RaRadium-221ads_clickcall_splitdownload

222RaRadium-222ads_clickcall_splitdownload

223RaRadium-223ads_clickcall_splitdownload

224RaRadium-224ads_clickcall_splitdownload

225RaRadium-225ads_clickcall_splitdownload

226RaRadium-226ads_clickcall_splitdownload

227RaRadium-227ads_clickcall_splitdownload

228RaRadium-228ads_clickcall_splitdownload

229RaRadium-229ads_clickcall_splitdownload

230RaRadium-230ads_clickcall_splitdownload

231RaRadium-231ads_clickcall_splitdownload

232RaRadium-232ads_clickcall_splitdownload

233RaRadium-233ads_clickcall_splitdownload

234RaRadium-234ads_clickcall_splitdownload

201RaRadium-201

202RaRadium-202

203RaRadium-203

204RaRadium-204

205RaRadium-205

206RaRadium-206

207RaRadium-207

208RaRadium-208

209RaRadium-209

210RaRadium-210

211RaRadium-211

212RaRadium-212

213RaRadium-213

214RaRadium-214

215RaRadium-215

216RaRadium-216

217RaRadium-217

218RaRadium-218

219RaRadium-219

220RaRadium-220

221RaRadium-221

222RaRadium-222

223RaRadium-223

224RaRadium-224

225RaRadium-225

226RaRadium-226

227RaRadium-227

228RaRadium-228

229RaRadium-229

230RaRadium-230

231RaRadium-231

232RaRadium-232

233RaRadium-233

234RaRadium-234