Isotopes of Plutonium

List of known isotopes of the element Plutonium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
²²⁸Pu	1.1 ± s	syn.	0+	—	2.28·10⁸ ±25.06 keV/c²	1994
²²⁹Pu	90 ± s	syn.	(3/2+)	—	2.29·10⁸ ±65.09 keV/c²	1994
²³⁰Pu	102 ±10 s	syn.	—	—	2.3·10⁸ ±15.51 keV/c²	1990
²³¹Pu	8.6 ±5 m	syn.	(3/2+)	—	2.31·10⁸ ±23.68 keV/c²	1999
²³²Pu	33.8 ±7 m	syn.	0+	—	2.32·10⁸ ±18.12 keV/c²	1973
²³³Pu	20.9 ±4 m	syn.	—	—	2.33·10⁸ ±58.16 keV/c²	1957
²³⁴Pu	8.8 ±1 h	syn.	0+	—	2.34·10⁸ ±7.298 keV/c²	1949
²³⁵Pu	25.3 ±5 m	syn.	(5/2+)	—	2.35·10⁸ ±22.03 keV/c²	1957
²³⁶Pu	2.858 ±8 a	syn.	0+	—	2.36·10⁸ ±1.942 keV/c²	1949
²³⁷Pu	45.64 ±4 d	syn.	7/2-	—	2.37·10⁸ ±1.821 keV/c²	1949
²³⁸Pu	87.7 ±1 a	syn.	0+	5.853 ±0.0378 fm	2.38·10⁸ ±1.221 keV/c²	1949
²³⁹Pu	24,110 ±30 a	syn.	1/2+	5.86 ±0.0378 fm	2.39·10⁸ ±1.194 keV/c²	1946
²⁴⁰Pu	6,561 ±7 a	syn.	0+	5.87 ±0.0379 fm	2.4·10⁸ ±1.186 keV/c²	1949
²⁴¹Pu	14.32 ±29 a	syn.	5/2+	5.874 ±0.0379 fm	2.41·10⁸ ±1.186 keV/c²	1949
²⁴²Pu	373,000 ±2 a	syn.	0+	5.882 ±0.038 fm	2.42·10⁸ ±1.336 keV/c²	1950
²⁴³Pu	4.956 ±3 h	syn.	7/2+	—	2.43·10⁸ ±2.728 keV/c²	1951
²⁴⁴Pu	8.13·10⁷ ±3 a	syn.	0+	5.894 ±0.0382 fm	2.44·10⁸ ±2.518 keV/c²	1954
²⁴⁵Pu	10.5 ±1 h	syn.	(9/2-)	—	2.45·10⁸ ±14.62 keV/c²	1955
²⁴⁶Pu	10.84 ±2 d	syn.	0+	—	2.46·10⁸ ±16.08 keV/c²	1955
²⁴⁷Pu	2.27 ±23 d	syn.	(1/2+)	—	2.47·10⁸ ±215 keV/c²	1983

228PuPlutonium-228

Classification	z: 94; n: 134; m: 228
Half life	1.1 ± s
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay
Discovery	1994
Mass excess	36,100 ±23.35 keV
Binding energy	7,590 ±0.1024 keV
Single-particle energy	3,760 ±80.43 keV
Neutron separation energy	8,733 ±102 keV
Q value for electron capture	2,282 ±102.6 keV
β⁻ decay energy	-6,742 ±202 keV
β⁻ decay energy with neutron	-14,150 ±202 keV

Point at nuclide Decay chain of Plutonium-228

229PuPlutonium-229

Classification	z: 94; n: 135; m: 229
Half life	90 ± s
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	α decay
Discovery	1994
Mass excess	37,390 ±60.63 keV
Binding energy	7,586 ±0.2648 keV
Single-particle energy	3,719 ±117 keV
Neutron separation energy	6,784 ±64.95 keV
Q value for electron capture	3,593 ±117.9 keV
β⁻ decay energy	-4,786 ±122.4 keV
β⁻ decay energy with neutron	-13,530 ±209 keV

Point at nuclide Decay chain of Plutonium-229

230PuPlutonium-230

Classification	z: 94; n: 136; m: 230
Half life	102 ±10 s
Natural abundance	synthetic nuclide
Decay modes	α decay
Discovery	1990
Mass excess	36,930 ±14.45 keV
Binding energy	7,591 ±0.0628 keV
Single-particle energy	4,158 ±102.1 keV
Neutron separation energy	8,534 ±62.31 keV
Q value for electron capture	1,695 ±56.87 keV
β⁻ decay energy	-5,940 ±144 keV
β⁻ decay energy with neutron	-13,320 ±107.3 keV

Point at nuclide Decay chain of Plutonium-230

231PuPlutonium-231

Classification	z: 94; n: 137; m: 231
Half life	8.6 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1999
Mass excess	38,300 ±22.06 keV
Binding energy	7,587 ±0.0955 keV
Single-particle energy	4,217 ±59.24 keV
Neutron separation energy	6,694 ±26.32 keV
Q value for electron capture	2,684 ±55.7 keV
β⁻ decay energy	-4,101 ±301 keV
β⁻ decay energy with neutron	-12,640 ±145 keV

Point at nuclide Decay chain of Plutonium-231

232PuPlutonium-232

Classification	z: 94; n: 138; m: 232
Half life	33.8 ±7 m
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture (EC); α decay
Discovery	1973
Mass excess	38,360 ±16.88 keV
Binding energy	7,588 ±0.0728 keV
Single-particle energy	4,551 ±53.85 keV
Neutron separation energy	8,018 ±27.73 keV
Q value for electron capture	1,001 ±101.4 keV
β⁻ decay energy	-5,059 ±300 keV
β⁻ decay energy with neutron	-12,120 ±300 keV

Point at nuclide Decay chain of Plutonium-232

233PuPlutonium-233

Classification	z: 94; n: 139; m: 233
Half life	20.9 ±4 m
Natural abundance	synthetic nuclide
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1957
Mass excess	40,050 ±54.17 keV
Binding energy	7,583 ±0.2325 keV
Single-particle energy	4,597 ±114 keV
Neutron separation energy	6,380 ±56.72 keV
Q value for electron capture	2,103 ±74.39 keV
β⁻ decay energy	-3,233 ±126 keV
β⁻ decay energy with neutron	-11,440 ±305 keV

Point at nuclide Decay chain of Plutonium-233

234PuPlutonium-234

Classification	z: 94; n: 140; m: 234
Half life	8.8 ±1 h
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	electron capture (EC); α decay
Discovery	1949
Mass excess	40,340 ±6.798 keV
Binding energy	7,584 ±0.0291 keV
Single-particle energy	4,887 ±51.41 keV
Neutron separation energy	7,773 ±54.58 keV
Q value for electron capture	395.1 ±10.8 keV
β⁻ decay energy	-4,112 ±160 keV
β⁻ decay energy with neutron	-11,010 ±114 keV

Point at nuclide Decay chain of Plutonium-234

235PuPlutonium-235

Classification	z: 94; n: 141; m: 235
Half life	25.3 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	(5/2+)
Decay modes	electron capture + β⁺ decay; α decay
Discovery	1957
Mass excess	42,180 ±20.52 keV
Binding energy	7,578 ±0.0873 keV
Single-particle energy	5,061 ±22.12 keV
Neutron separation energy	6,238 ±21.58 keV
Q value for electron capture	1,139 ±20.56 keV
β⁻ decay energy	-2,443 ±56.59 keV
β⁻ decay energy with neutron	-10,360 ±161 keV

Point at nuclide Decay chain of Plutonium-235

236PuPlutonium-236

Classification	z: 94; n: 142; m: 236
Half life	2.858 ±8 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; spontaneous fission
Discovery	1949
Mass excess	42,900 ±1.81 keV
Binding energy	7,577 ±0.0077 keV
Single-particle energy	5,430 ±1.764 keV
Neutron separation energy	7,352 ±20.53 keV
Q value for electron capture	-476.6 ±50.45 keV
β⁻ decay energy	-3,139 ±119 keV
β⁻ decay energy with neutron	-9,795 ±52.79 keV

Point at nuclide Decay chain of Plutonium-236

237PuPlutonium-237

Classification	z: 94; n: 143; m: 237
Half life	45.64 ±4 d
Natural abundance	synthetic nuclide
Spin/parity	7/2-
Decay modes	electron capture (EC); α decay
Discovery	1949
Mass excess	45,090 ±1.697 keV
Binding energy	7,570 ±0.0072 keV
Single-particle energy	5,575 ±50.43 keV
Neutron separation energy	5,881 ±2.075 keV
Q value for electron capture	220 ±2.033 keV
β⁻ decay energy	-1,478 ±59 keV
β⁻ decay energy with neutron	-9,020 ±119 keV
Magnetic dipole moment	-0.68 ±0.05 μN

Point at nuclide Decay chain of Plutonium-237

238PuPlutonium-238

Classification	z: 94; n: 144; m: 238
Half life	87.7 ±1 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; spontaneous fission
Discovery	1949
Mass excess	46,160 ±1.138 keV
Binding energy	7,568 ±0.0048 keV
Single-particle energy	5,997 ±0.4112 keV
Neutron separation energy	6,999 ±1.345 keV
Q value for electron capture	-1,292 ±1.609 keV
β⁻ decay energy	-2,259 ±58.9 keV
β⁻ decay energy with neutron	-8,478 ±59 keV

Point at nuclide Decay chain of Plutonium-238

239PuPlutonium-239

Classification	z: 94; n: 145; m: 239
Half life	24,110 ±30 a
Natural abundance	synthetic nuclide
Spin/parity	1/2+
Decay modes	α decay; spontaneous fission
Discovery	1946
Mass excess	48,580 ±1.112 keV
Binding energy	7,560 ±0.0047 keV
Single-particle energy	6,155 ±0.3683 keV
Neutron separation energy	5,646 ±0.3079 keV
Q value for electron capture	-722.8 ±1.718 keV
β⁻ decay energy	-802.2 ±1.663 keV
β⁻ decay energy with neutron	-7,905 ±58.9 keV
Magnetic dipole moment	0.202 ±0.004 μN
Electric quadrupole moment	-2.319 ±0.007 b

Point at nuclide Decay chain of Plutonium-239

240PuPlutonium-240

Classification	z: 94; n: 146; m: 240
Half life	6,561 ±7 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; spontaneous fission; other decay
Discovery	1949
Mass excess	50,120 ±1.105 keV
Binding energy	7,556 ±0.0046 keV
Single-particle energy	6,474 ±0.9526 keV
Neutron separation energy	6,534 ±0.2311 keV
Q value for electron capture	-2,191 ±17.06 keV
β⁻ decay energy	-1,385 ±13.78 keV
β⁻ decay energy with neutron	-7,337 ±1.67 keV

Point at nuclide Decay chain of Plutonium-240

241PuPlutonium-241

Classification	z: 94; n: 147; m: 241
Half life	14.32 ±29 a
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	β⁻ decay; α decay; spontaneous fission
Discovery	1949
Mass excess	52,950 ±1.105 keV
Binding energy	7,546 ±0.0046 keV
Single-particle energy	6,650 ±17.01 keV
Neutron separation energy	5,241 ±0.03 keV
Q value for electron capture	-1,360 ±100 keV
β⁻ decay energy	20.77 ±0.1658 keV
β⁻ decay energy with neutron	-6,627 ±13.78 keV
Magnetic dipole moment	-0.678 ±0.014 μN
Electric quadrupole moment	6 ±2 b

Point at nuclide Decay chain of Plutonium-241

242PuPlutonium-242

Classification	z: 94; n: 148; m: 242
Half life	373,000 ±2 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; spontaneous fission
Discovery	1950
Mass excess	54,710 ±1.245 keV
Binding energy	7,541 ±0.0052 keV
Single-particle energy	6,887 ±100 keV
Neutron separation energy	6,309 ±0.6814 keV
Q value for electron capture	-2,700 ±200 keV
β⁻ decay energy	-751.2 ±0.708 keV
β⁻ decay energy with neutron	-6,289 ±0.7009 keV

Point at nuclide Decay chain of Plutonium-242

243PuPlutonium-243

Classification	z: 94; n: 149; m: 243
Half life	4.956 ±3 h
Natural abundance	synthetic nuclide
Spin/parity	7/2+
Decay modes	β⁻ decay
Discovery	1951
Mass excess	57,750 ±2.542 keV
Binding energy	7,531 ±0.0105 keV
Single-particle energy	6,951 ±200 keV
Neutron separation energy	5,033 ±2.389 keV
Q value for electron capture	-2,052 ±32.1 keV
β⁻ decay energy	579.5 ±2.621 keV
β⁻ decay energy with neutron	-5,785 ±2.439 keV

Point at nuclide Decay chain of Plutonium-243

244PuPlutonium-244

Classification	z: 94; n: 150; m: 244
Half life	8.13·10⁷ ±3 a
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	α decay; spontaneous fission
Discovery	1954
Mass excess	59,800 ±2.346 keV
Binding energy	7,524 ±0.0096 keV
Single-particle energy	7,289 ±32 keV
Neutron separation energy	6,019 ±2.933 keV
Q value for electron capture	-3,434 ±100 keV
β⁻ decay energy	-73.12 ±2.685 keV
β⁻ decay energy with neutron	-5,441 ±2.645 keV

Point at nuclide Decay chain of Plutonium-244

245PuPlutonium-245

Classification	z: 94; n: 151; m: 245
Half life	10.5 ±1 h
Natural abundance	synthetic nuclide
Spin/parity	(9/2-)
Decay modes	β⁻ decay
Discovery	1955
Mass excess	63,170 ±13.62 keV
Binding energy	7,513 ±0.0556 keV
Single-particle energy	7,351 ±101 keV
Neutron separation energy	4,699 ±13.41 keV
β⁻ decay energy	1,277 ±13.73 keV
β⁻ decay energy with neutron	-4,773 ±13.68 keV

Point at nuclide Decay chain of Plutonium-245

246PuPlutonium-246

Classification	z: 94; n: 152; m: 246
Half life	10.84 ±2 d
Natural abundance	synthetic nuclide
Spin/parity	0+
Decay modes	β⁻ decay
Discovery	1955
Mass excess	65,390 ±14.98 keV
Binding energy	7,506 ±0.0609 keV
Single-particle energy	7,744 ±201 keV
Neutron separation energy	5,854 ±20.09 keV
β⁻ decay energy	401 ±14 keV
β⁻ decay energy with neutron	-4,577 ±15.06 keV

Point at nuclide Decay chain of Plutonium-246

247PuPlutonium-247

Classification	z: 94; n: 153; m: 247
Half life	2.27 ±23 d
Natural abundance	synthetic nuclide
Spin/parity	(1/2+)
Decay modes	β⁻ decay
Discovery	1983
Mass excess	69,210 ±200 keV
Binding energy	7,493 ±1 keV
Neutron separation energy	4,256 ±201 keV
β⁻ decay energy	2,057 ±224 keV
β⁻ decay energy with neutron	-3,855 ±201 keV

Point at nuclide Decay chain of Plutonium-247

Isotopes of Plutonium

228PuPlutonium-228ads_clickcall_splitdownload

229PuPlutonium-229ads_clickcall_splitdownload

230PuPlutonium-230ads_clickcall_splitdownload

231PuPlutonium-231ads_clickcall_splitdownload

232PuPlutonium-232ads_clickcall_splitdownload

233PuPlutonium-233ads_clickcall_splitdownload

234PuPlutonium-234ads_clickcall_splitdownload

235PuPlutonium-235ads_clickcall_splitdownload

236PuPlutonium-236ads_clickcall_splitdownload

237PuPlutonium-237ads_clickcall_splitdownload

238PuPlutonium-238ads_clickcall_splitdownload

239PuPlutonium-239ads_clickcall_splitdownload

240PuPlutonium-240ads_clickcall_splitdownload

241PuPlutonium-241ads_clickcall_splitdownload

242PuPlutonium-242ads_clickcall_splitdownload

243PuPlutonium-243ads_clickcall_splitdownload

244PuPlutonium-244ads_clickcall_splitdownload

245PuPlutonium-245ads_clickcall_splitdownload

246PuPlutonium-246ads_clickcall_splitdownload

247PuPlutonium-247ads_clickcall_splitdownload

228PuPlutonium-228

229PuPlutonium-229

230PuPlutonium-230

231PuPlutonium-231

232PuPlutonium-232

233PuPlutonium-233

234PuPlutonium-234

235PuPlutonium-235

236PuPlutonium-236

237PuPlutonium-237

238PuPlutonium-238

239PuPlutonium-239

240PuPlutonium-240

241PuPlutonium-241

242PuPlutonium-242

243PuPlutonium-243

244PuPlutonium-244

245PuPlutonium-245

246PuPlutonium-246

247PuPlutonium-247