Isotope lists, 73-96

For an overview of available graphical representations, see Table of nuclides.

The tables listed below provide information on the basic properties of all nuclides.

Click an element in the below periodic table to go directly to the table of nuclides for that element.

Isotopes of the chemical elements
1
H		 2
He
3
Li		 4
Be		 5
B		 6
C		 7
N		 8
O		 9
F		 10
Ne
11
Na		 12
Mg		 13
Al		 14
Si		 15
P		 16
S		 17
Cl		 18
Ar
19
K		 20
Ca		 21
Sc		 22
Ti		 23
V		 24
Cr		 25
Mn		 26
Fe		 27
Co		 28
Ni		 29
Cu		 30
Zn		 31
Ga		 32
Ge		 33
As		 34
Se		 35
Br		 36
Kr
37
Rb		 38
Sr		 39
Y		 40
Zr		 41
Nb		 42
Mo		 43
Tc		 44
Ru		 45
Rh		 46
Pd		 47
Ag		 48
Cd		 49
In		 50
Sn		 51
Sb		 52
Te		 53
I		 54
Xe
55
Cs		 56
Ba		 * 72
Hf		 73
Ta		 74
W		 75
Re		 76
Os		 77
Ir		 78
Pt		 79
Au		 80
Hg		 81
Tl		 82
Pb		 83
Bi		 84
Po		 85
At		 86
Rn
87
Fr		 88
Ra		 ** 104
Rf		 105
Db		 106
Sg		 107
Bh		 108
Hs		 109
Mt		 110
Ds		 111
Rg		 112
Cn		 113
Nh		 114
Fl		 115
Mc		 116
Lv		 117
Ts		 118
Og
* 57
La		 58
Ce		 59
Pr		 60
Nd		 61
Pm		 62
Sm		 63
Eu		 64
Gd		 65
Tb		 66
Dy		 67
Ho		 68
Er		 69
Tm		 70
Yb		 71
Lu
** 89
Ac		 90
Th		 91
Pa		 92
U		 93
Np		 94
Pu		 95
Am		 96
Cm		 97
Bk		 98
Cf		 99
Es		 100
Fm		 101
Md		 102
No		 103
Lr
  • Table of nuclides
  • Categories: Isotopes
  • Tables of nuclides
  • Metastable isotopes
  • Isotopes by element


Legend

α Alpha decay
β- Beta decay
β+ Positron emission
K+ Electron capture
IT Internal conversion
SF Spontaneous fission
p Proton emission
n Neutron emission

Tantalum

Main article: Isotopes of tantalum

Isotope Half-life Spin Parity Mode(s) or Abundance
156Ta 144 ms (2-) %p ~ 100
156m1Ta 375 ms (9+ ) %K+%β+=95.8, %p=4.2
157Ta 10.1 ms 1/2+ %α=96.6, %p=3.4
157m1Ta 4.3 ms 11/2- %K+%β+ ~ 5
158Ta 36.5 ms (2-) %α=93, %K+%β+=7
158m1Ta 49 ms (9+ ) %α ~ 100
159Ta 0.57 s %α=80, %K+%β+=20
160Ta 1.55 s (9+ ) %K+%β+=66, %α=34
160m1Ta 1.7 s (2-) %α=?
161Ta 2.7 s %K+%β+ ~ 95, %α ~ 5
162Ta 3.52 s %K+%β+=99.926, %α=0.074
163Ta 10.6 s %K+%β+ ~ 99.8, %α ~ 0.2
164Ta 14.2 s (3+ ) %K+%β+=100
165Ta 31.0 s %K+%β+=100
166Ta 34.4 s (2) + %K+%β+=100
167Ta 1.4 m (3/2+ ) %K+%β+=100
168Ta 2.0 m (3+ ) %K+%β+=100
169Ta 4.9 m (5/2-) %K+%β+=100
170Ta 6.76 m (3+ ) %K+%β+=100
171Ta 23.3 m (5/2-) %K+%β+=100
172Ta 36.8 m (3+ ) %K+%β+=100
173Ta 3.14 h 5/2- %K+%β+=100
174Ta 1.05 h 3+ %K+%β+=100
174m1Ta 250 ns
175Ta 10.5 h 7/2+ %K+%β+=100
176Ta 8.09 h (1) - %K+%β+=100
176m1Ta 1.1 ms (+) %IT=100
176m2Ta 1.4 ms (20- )
177Ta 56.56 h 7/2+ %K+%β+=100
178Ta 9.31 m 1+ %K+%β+=100
178m1Ta 2.36 h (7) - %K+%β+=100
178m2Ta 60 ms (15-) %IT=100
179Ta 1.82 a 7/2+ %K=100
179m1Ta 9.0 ms (25/2+ )
179m2Ta 52 ms (37/2+ )
180Ta 8.152 h 1+ %K=86, %β-=14
180m1Ta stable (>1.2e+15 a) 9- %Abundance=0.012
181Ta stable 7/2+ %Abundance=99.988
182Ta 114.43 d 3- %β-=100
182m1Ta 283 ms 5+ %IT=100
182m2Ta 15.84 m 10- %IT=100
183Ta 5.1 d 7/2+ %β-=100
184Ta 8.7 h (5-) %β-=100
185Ta 49.4 m (7/2+ ) %β-=100
186Ta 10.5 m (2-, 3-) %β-=100

Tungsten

Main article: Isotopes of tungsten

Isotope Half-life Spin Parity Mode(s) or Abundance
158W 0.9 ms 0+ %α=100
158m1W 0.16 ms 8+
159W 7.3 ms %α ~ 99.5, %K+%β+ ~ 0.5
160W 91 ms 0+ %α=87, %K+%β+=?
161W 410 ms %α=82
162W 1.39 s 0+ %K+%β+=53, %α=47
163W 2.75 s %K+%β+=59, %α=41
164W 6.0 s 0+ %K+%β+=95.6, %α=4.4
165W 5.1 s %K+%β+=100, %α < 0.2
166W 18.8 s 0+ %K+%β+=99.965, %α=0.035
167W 19.9 s (7/2-) %K+%β+=?, %α=?
168W 53 s 0+ %K+%β+ ~ 100, %α=2.7E-3
169W 76 s (5/2-) %K+%β+=100
170W 2.42 m 0+ %K+%β+=100
171W 2.38 m (5/2-) %K+%β+=100
172W 6.6 m 0+ %K+%β+=100
173W 7.6 m 5/2- %K+%β+=100
174W 31 m 0+ %K+%β+=100
175W 35.2 m (1/2-) %K+%β+=100
176W 2.5 h 0+ %K=100
177W 135 m (1/2-) %K+%β+=100
178W 21.6 d 0+ %K=100
179W 37.05 m (7/2) - %K+%β+=100
179m1W 6.40 m (1/2) - %IT=99.72, %K+%β+=0.28
180W 1.2e+18 a 0+ %Abundance=0.13, %α=100
180m1W 5.47 ms 8- %IT=100
181W 121.2 d 9/2+ %K=100
182W stable (>1.7e+20 a) 0+ %Abundance=26.3
183W stable (>0.8e+20 a) 1/2- %Abundance=14.3
183m1W 5.2 s 11/2+ %IT=100
184W stable (>1.8e+20 a) 0+ %Abundance=30.67
185W 75.1 d 3/2- %β-=100
185m1W 1.67 m 11/2+ %IT=100
186W stable (>1.7e+20 a) 0+ %Abundance=28.6
187W 23.72 h 3/2- %β-=100
188W 69.4 d 0+ %β-=100
189W 11.5 m (3/2-) %β-=100
190W 30.0 m 0+ %β-=100

Rhenium

Main article: Isotopes of rhenium

Isotope Half-life Spin Parity Mode(s) or Abundance
160Re 0.79 ms %p=91, %α=9
161Re 0.37 ms (1/2+ ) %p=100
161m1Re 16 ms (11/2-) %α=95.2, %p=4.8
162Re 107 ms (2-) %α=94
162m1Re 75 ms (9+ ) %α=91
163Re 260 ms %α=64, %K+%β+=36
164Re 0.38 s %K+%β+ ~ 100
164m1Re 0.88 s %α=?
165Re 2.4 s %K+%β+=87, %α=13
166Re 2.8 s %α < 8
167Re 6.1 s %K+%β+ ~ 99.3, %α ~ 0.7
168Re 4.4 s (6+ ) %K+%β+ ~ 100, %α ~ 5E-3
169Re
169m1Re 12.9 s %α ~ 0.2
170Re 9.2 s (5+ ) %K+%β+=100
171Re 15.2 s (9/2-) %K+%β+=100
172Re 15 s (5) %K+%β+=100
172m1Re 55 s (2) %K+%β+=100
173Re 1.98 m (5/2-) %K+%β+=100
174Re 2.40 m %K+%β+=100
175Re 5.89 m (5/2-) %K+%β+=100
176Re 5.3 m 3(+) %K+%β+=100
177Re 14 m (5/2-) %K+%β+=100
178Re 13.2 m (3+ ) %K+%β+=100
179Re 19.5 m (5/2) + %K+%β+=100
180Re 2.44 m (1) - %K+%β+=100
181Re 19.9 h 5/2+ %K+%β+=100
182Re 64.0 h 7+ %K+%β+=100
182m1Re 12.7 h 2+ %K+%β+=100
183Re 70.0 d 5/2+ %K=100
183m1Re 1.04 ms (25/2) + %IT=100
184Re 38.0 d 3(-) %K+%β+=100
184m1Re 169 d 8(+) %IT=75.4, %K=24.6
185Re stable 5/2+ %Abundance=37.40
186Re 3.7183 d 1- %K=7.47, %β-=92.53
186m1Re 2.0e+5 a (8+ ) %IT=100
187Re 4.35e10 a 5/2+ %Abundance=62.60, %β-=100, %α < 0.0001
188Re 17.005 h 1- %β-=100
188m1Re 18.6 m (6) - %IT=100
189Re 24.3 h 5/2+ %β-=100
190Re 3.1 m (2) - %β-=100
190m1Re 3.2 h (6-) %β-=54.4, %IT=45.6
191Re 9.8 m (3/2+, 1/2+ ) %β-=100
192Re 16 s %β-=100

Osmium

Main article: Isotopes of osmium

Isotope Half-life Spin Parity Mode(s) or Abundance
162Os 1.9 ms 0+ %α=100
163Os %α=?, %K+%β+=?
164Os 21 ms 0+ %α ~ 98, %K+%β+ ~ 2
165Os 71 ms (7/2-) %α > 60, %K+%β+ < 40
166Os 181 ms 0+ %α=72, %K+%β+=28
167Os 0.83 s %α=67, %K+%β+=33
168Os 2.1 s 0+ %K+%β+=56, %α=44
169Os 3.4 s %K+%β+=89, %α=11
170Os 7.3 s 0+ %K+%β+=88, %α=12
171Os 8.0 s (5/2-) %K+%β+=98.3, %α=1.7
172Os 19.2 s 0+ %K+%β+=99.0, %α=1.0
173Os 16 s (5/2-) %K+%β+=99.979, %α=0.021
174Os 44 s 0+ %K+%β+=99.980 +4-10, %α=0.020 +10-4
175Os 1.4 m (5/2-) %K+%β+=100
176Os 3.6 m 0+ %K+%β+=100
177Os 2.8 m (1/2-) %K+%β+=100
178Os 5.0 m 0+ %K+%β+=100
179Os 6.5 m (1/2-) %K+%β+=100
180Os 21.5 m 0+ %K+%β+=100
181Os 105 m 1/2- %K+%β+=100
181m1Os 2.7 m (7/2) - %K+%β+=100
182Os 22.10 h 0+ %K=100
183Os 13.0 h 9/2+ %K+%β+=100
183m1Os 9.9 h 1/2- %K+%β+=85, %IT=15
184Os 5.6e13 a 0+ %Abundance=0.02
185Os 93.6 d 1/2- %K=100
186Os 2.0e15 a 0+ %Abundance=1.58, %α=100
187Os stable 1/2- %Abundance=1.6
188Os stable 0+ %Abundance=13.3
189Os stable 3/2- %Abundance=16.1
189m1Os 5.8 h 9/2- %IT=100
190Os stable 0+ %Abundance=26.4
190m1Os 9.9 m (10) - %IT=100
191Os 15.4 d 9/2- %β-=100
191m1Os 13.10 h 3/2- %IT=100
192Os stable 0+ %Abundance=41.0
192m1Os 5.9 s (10- ) %IT > 87, %β- < 13
193Os 30.11 h 3/2- %β-=100
194Os 6.0 a 0+ %β-=100
195Os 6.5 m %β-=100
196Os 34.9 m 0+ %β-=100

Iridium

Main article: Isotopes of iridium

Isotope Half-life Spin Parity Mode(s) or Abundance
165Ir 300 μs (11/2-) %p=87, %α=13
166Ir 10.5 ms (2-) %α=93, %p=7
166m1Ir 15.1 ms (9+ ) %α=98.2, %p=1.8
167Ir 5 ms %α=?
168Ir 161 ms %α=?
169Ir 0.4 s %α ~ 100, %K+%β+=?, %p=?
170Ir 1.05 s %K+%β+=25 sys%α=75 sys
171Ir 1.5 s %α ~ 100, %K+%β+=?, %p=?
172Ir 4.4 s (3+ ) %α ~ 2, %K+%β+=98
172m1Ir 2.0 s (7+ ) %α=23, %K+%β+=77
173Ir 9.0 s (3/2+, 5/2+ ) %K+%β+ > 93, %α < 7
173m1Ir 2.20 s (11/2-) %K+%β+=88, %α=12
174Ir 9 s (3+ ) %K+%β+=99.53, %α=0.47
174m1Ir 4.9 s (7+ ) %K+%β+=97.5, %α=2.5
175Ir 9 s (5/2-) %K+%β+=99.15, %α=0.85
176Ir 8 s %K+%β+=97.9, %α=2.1
177Ir 30 s (5/2-) %K+%β+=99.94, %α=0.06
178Ir 12 s %K+%β+=100
179Ir 79 s (5/2) - %K+%β+=100
180Ir 1.5 m %K+%β+=100
181Ir 4.90 m (5/2) - %K+%β+=100
182Ir 15 m (5+ ) %K+%β+=100
183Ir 58 m 5/2- %K+%β+=100
184Ir 3.09 h 5- %K+%β+=100
185Ir 14.4 h 5/2- %K+%β+=100
186Ir 16.64 h 5+ %K+%β+=100
186m1Ir 1.90 h 2- %K+%β+ ~ 75, %IT ~ 25
187Ir 10.5 h 3/2+ %K+%β+=100
187m1Ir 30.3 ms 9/2- %IT=100
188Ir 41.5 h 1- %K+%β+=100
188m1Ir 4.2 ms
189Ir 13.2 d 3/2+ %K=100
189m1Ir 13.3 ms 11/2- %IT=100
189m2Ir 3.7 ms (25/2) + %IT=100
190Ir 11.78 d (4-) %K+%β+=100, %β- < 0.002
190m1Ir 1.2 h (1-) %IT=100
190m2Ir 3.25 h (11) - %K+%β+=94.4, %IT=5.6
191Ir stable 3/2+ %Abundance=37.3
191m1Ir 4.94 s 11/2- %IT=100
191m2Ir 5.5 s %IT=100
192Ir 73.831 d 4(+) %β-=95.24, %K=4.76
192m1Ir 1.45 m 1(-) %IT=99.982, %β-=0.018
192m2Ir 241 a (9) %IT=100
193Ir stable 3/2+ %Abundance=62.7
193m1Ir 10.53 d 11/2- %IT=100
194Ir 19.28 h 1- %β-=100
194m1Ir 31.85 ms (4+ ) %IT=100
194m2Ir 171 d (10,11) %β-=100
195Ir 2.5 h 3/2+ %β-=100
195m1Ir 3.8 h 11/2- %β-=95, %IT=5
196Ir 52 s (0- ) %β-=100
196m1Ir 1.40 h (10,11-) %β- ~ 100, %IT < 0.3
197Ir 5.8 m 3/2+ %β-=100
197m1Ir 8.9 m 11/2- %β-=99.75, %IT=0.25
198Ir 8 s %β-=100

Platinum

Main article: Isotopes of platinum

Isotope Half-life Spin Parity Mode(s) or Abundance
168Pt 2.0 ms 0+ %α=100
169Pt 5 ms %α=?
170Pt 6 ms 0+ %α=100
171Pt 25 ms %α ~ 99, %K+%β+ ~ 1
172Pt 0.096 s 0+ %α=94 +6-32, %K+%β+=6 +32-6
173Pt 342 ms %K+%β+=16, %α=84
174Pt 0.90 s 0+ %α=75, %K+%β+=25
175Pt 2.52 s %α=64, %K+%β+=36
176Pt 6.33 s 0+ %K+%β+=62, %α=38
177Pt 11 s (5/2-) %K+%β+=94.4, %α=5.6
178Pt 21.1 s 0+ %K+%β+=95.4, %α=4.6
179Pt 21.2 s 1/2- %K+%β+=99.76, %α=0.24
180Pt 52 s 0+ %K+%β+=100, %α ~ 0.3
181Pt 51 s 1/2- %K+%β+=100, %α ~ 0.06
182Pt 3.0 m 0+ %K+%β+=99.969, %α=0.031
183Pt 6.5 m 1/2- %K+%β+ ~ 100, %α ~ 0.0013
183m1Pt 43 s (7/2) - %K+%β+=100, %α=?
184Pt 17.3 m 0+ %K+%β+=100, %α ~ 0.001
184m1Pt 1.01 ms 8- %IT=100
184m2Pt 1.1 ms 8-
185Pt 70.9 m 9/2+ %K+%β+=100, %α=0.0050
185m1Pt 33.0 m 1/2- %K+%β+=99, %IT < 2
186Pt 2.2 h 0+ %K+%β+=100, %α ~ 0.00010
187Pt 2.35 h 3/2- %K+%β+=100
188Pt 10.2 d 0+ %K=100, %α=2.9E-5
189Pt 10.87 h 3/2- %K+%β+=100
190Pt 6.5e11 a 0+ %Abundance=0.01, %α=100
191Pt 2.802 d 3/2- %K=100
192Pt stable 0+ %Abundance=0.79
193Pt 50 a 1/2- %K=100
193m1Pt 4.33 d 13/2+ %IT=100
194Pt stable 0+ %Abundance=32.9
195Pt stable 1/2- %Abundance=33.8
195m1Pt 4.02 d 13/2+ %IT=100
196Pt stable 0+ %Abundance=25.3
197Pt 19.8915 h 1/2- %β-=100
197m1Pt 95.41 m 13/2+ %IT=96.7, %β-=3.3
198Pt stable 0+ %Abundance=7.2
199Pt 30.80 m 5/2- %β-=100
199m1Pt 13.6 s (13/2) + %IT=100
200Pt 12.5 h 0+ %β-=100
201Pt 2.5 m (5/2-) %β-=100
202Pt 44 h 0+ %β-=100

Gold

Main article: Isotopes of gold

Isotope Half-life Spin Parity Mode(s) or Abundance
172Au 6.3 ms %α ~ 100, %p < 2
173Au 59 ms %α < 100
174Au 120 ms %α=?
175Au 200 ms %α=94 +6-25, %K+%β+=6 +25-6
176Au 1.08 s %α=?, %K+%β+=?
177Au 1.18 s %α < 40
178Au 2.6 s %K+%β+ < 60, %α > 40
179Au 7.1 s %K+%β+=78.0, %α=22.0
180Au 8.1 s %K+%β+ < 98.2, %α > 1.8
181Au 11.4 s 5/2- %K+%β+=98.7, %α=1.3
182Au 15.6 s %K+%β+=99.87, %α=0.13
183Au 42.0 s (5/2) - %K+%β+=99.70, %α=0.30
184Au 53.0 s 3+ %K+%β+=99.978, %α=0.022
185Au 4.25 m 5/2- %K+%β+=99.74, %α=0.26
185m1Au 6.8 m %K+%β+ < 100, %IT=?
186Au 10.7 m 3- %K+%β+=100, %α=8E-4
187Au 8.4 m 1/2+ %K+%β+=100, %α=0.003 sys
187m1Au 2.3 s 9/2- %IT=100
188Au 8.84 m 1(-) %K+%β+=100
189Au 28.7 m 1/2+ %K+%β+=100, %α < 3E-5
189m1Au 4.59 m 11/2- %K+%β+ ~ 100, %IT > 0
190Au 42.8 m 1- %K+%β+=100, %α < 1E-6
190m1Au 125 ms (11-) %IT=?, %K+%β+=?
191Au 3.18 h 3/2+ %K+%β+=100
191m1Au 0.92 s (11/2-) %IT=100
192Au 4.94 h 1- %K+%β+=100
192m1Au 29 ms (5) + %IT=100
192m2Au 160 ms (11-) %IT=100
193Au 17.65 h 3/2+ %K+%β+=100
193m1Au 3.9 s 11/2- %IT=99.97, %K+%β+ ~ 0.03
194Au 38.02 h 1- %K+%β+=100
194m1Au 600 ms (5+ ) %IT=100
194m2Au 420 ms (11-) %IT=100
195Au 186.09 d 3/2+ %K=100
195m1Au 30.5 s 11/2- %IT=100
196Au 6.183 d 2- %K+%β+=92.80, %β- =7.20
196m1Au 8.1 s 5+ %IT=100
196m2Au 9.6 h 12- %IT=100
197Au stable 3/2+ %Abundance=100
197m1Au 7.73 s 11/2- %IT=100
198Au 2.69517 d 2- %β-=100
198m1Au 2.27 d (12-) %IT=100
199Au 3.139 d 3/2+ %β-=100
200Au 48.4 m 1(-) %β-=100
200m1Au 18.7 h 12- %β-=82, %IT=18
201Au 26 m 3/2+ %β-=100
202Au 28.8 s (1-) %β-=100
203Au 53 s 3/2+ %β-=100
204Au 39.8 s (2-) %β-=100
205Au 31 s (3/2+ ) %β-=100

Mercury

Main article: Isotopes of mercury

Isotope Half-life Spin Parity Mode(s) or Abundance
175Hg 20 ms %α=100
176Hg 18 ms 0+ %α ~ 100
177Hg 0.130 s %α=85, %K+%β+=15
178Hg 266 ms 0+ %K+%β+=?, %α ~ 100
179Hg 1.09 s %K+%β+ ~ 47, %α ~ 53, %Kp ~ 0.15
180Hg 2.8 s 0+ %K+%β+=52, %α=48
181Hg 3.6 s 1/2(-) %K+%β+=64, %α=36, %Kp=0.014, %Kα=9E-6
182Hg 10.83 s 0+ %K+%β+=84.8, %α=15.2
183Hg 9.4 s 1/2- %K+%β+=88.3, %α=11.7, %Kp=0.00056
184Hg 30.9 s 0+ %K+%β+=98.74, %α=1.26
185Hg 49.1 s 1/2- %K+%β+=94, %α=6
185m1Hg 21.6 s 13/2+ %IT=54, %K+%β+=46, %α ~ 0.03
186Hg 1.38 m 0+ %K+%β+=99.982, %α=0.018
187Hg 2.4 m 13/2+ %K+%β+=100, %α>1.2E-4
187m1Hg 1.9 m 3/2- %K+%β+=100, %α>2.5E-4
188Hg 3.25 m 0+ %K+%β+=100, %α=4.0E-5
189Hg 7.6 m 3/2- %K+%β+=100, %α < 3E-5
189m1Hg 8.6 m 13/2+ %K+%β+=100, %α < 3E-5
190Hg 20.0 m 0+ %K+%β+=100, %α < 5E-5
191Hg 49 m (3/2-) %K+%β+=100
191m1Hg 50.8 m 13/2+ %K+%β+=100
192Hg 4.85 h 0+ %K=100, %α < 4E-6
193Hg 3.80 h 3/2- %K+%β+=100
193m1Hg 11.8 h 13/2+ %K+%β+=92.8, %IT=7.2
194Hg 444 a 0+ %K=100
195Hg 9.9 h 1/2- %K+%β+=100
195m1Hg 41.6 h 13/2+ %IT=54.2, %K+%β+=45.8
196Hg stable 0+ %Abundance=0.15
197Hg 64.14 h 1/2- %K=100
197m1Hg 23.8 h 13/2+ %K=8.6, %IT=91.4
198Hg stable 0+ %Abundance=9.97
199Hg stable 1/2- %Abundance=16.87
199m1Hg 42.6 m 13/2+ %IT=100
200Hg stable 0+ %Abundance=23.10
201Hg stable 3/2- %Abundance=13.18
202Hg stable 0+ %Abundance=29.86
203Hg 46.612 d 5/2- %β-=100
204Hg stable 0+ %Abundance=6.87
205Hg 5.2 m 1/2- %β-=100
205m1Hg 1.10 ms (13/2+ ) %IT=100
206Hg 8.15 m 0+ %β-=100
207Hg 2.9 m (9/2+ ) %β-=100
208Hg 42 m 0+ %β-=100

Thallium

Main article: Isotopes of thallium

Isotope Half-life Spin Parity Mode(s) or Abundance
179Tl 0.16 s %α ~ 100
179m1Tl 1.4 ms (9/2-) %α ~ 100
180Tl 0.70 s %K+%β+=?, %KSF ~ 1.0E-4
181Tl (1/2+ )
181m1Tl 3.4 s (9/2-) %α=?
182Tl 3.1 s (7+ ) %K+%β+ > 96, %α < 4
183Tl (1/2+ )
183m1Tl 60 ms (9/2-) %α < 0.010
184Tl 11 s %K+%β+=97.9, %α=2.1
185Tl 19.5 s (1/2+ ) %K+%β+=?
185m1Tl 1.83 s (9/2-) %IT=?, %α=?
186Tl 27.5 s (7+ ) %K+%β+=100, %α ~ 0.006
186m1Tl 2.9 s (10- ) %IT=100
187Tl 51 s (1/2+ ) %K+%β+=?, %α=?
187m1Tl 15.60 s (9/2-) %α=?, %K+%β+=?, %IT=?
188Tl 71 s (2-) %K+%β+=100
188m1Tl 71 s (7+ ) %K+%β+=100
188m2Tl 41 ms (9-) %IT=100
189Tl 2.3 m (1/2+ ) %K+%β+=100
189m1Tl 1.4 m (9/2-) %K+%β+=100, %IT<4
190Tl 2.6 m (2) - %K+%β+=100
190m1Tl 3.7 m (7+ ) %K+%β+=100
191Tl (1/2+ )
191m1Tl 5.22 m 9/2(-) %K+%β+=100
192Tl 9.6 m (2-) %K+%β+=100
192m1Tl 10.8 m (7+ ) %K+%β+=100
193Tl 21.6 m 1/2+ %K+%β+=100
193m1Tl 2.11 m 9/2- %IT=75, %K+%β+=25
194Tl 33.0 m 2- %K+%β+=100, %α < 1E-7
194m1Tl 32.8 m (7+ ) %K+%β+=100
195Tl 1.16 h 1/2+ %K+%β+=100
195m1Tl 3.6 s 9/2- %IT=100
196Tl 1.84 h 2- %K+%β+=100
196m1Tl 1.41 h (7+ ) %K+%β+=95.5, %IT=4.5
197Tl 2.84 h 1/2+ %K+%β+=100
197m1Tl 0.54 s 9/2- %IT=100
198Tl 5.3 h 2- %K+%β+=100
198m1Tl 1.87 h 7+ %IT=46, %K+%β+=54
198m2Tl 32.1 ms (10- ) %IT=100
199Tl 7.42 h 1/2+ %K+%β+=100
199m1Tl 28.4 ms 9/2- %IT=100
200Tl 26.1 h 2- %K+%β+=100
200m1Tl 34.3 ms 7+ %IT=100
201Tl 72.912 h 1/2+ %K=100
201m1Tl 2.035 ms (9/2-) %IT=100
202Tl 12.23 d 2- %K+%β+=100
202m1Tl 572 μs 7+
203Tl stable 1/2+ %Abundance=29.524
204Tl 3.78 a 2- %β-=97.10, %K+%β+=2.90
205Tl stable 1/2+ %Abundance=70.476
206Tl 4.199 m 0- %β-=100
206m1Tl 3.74 m (12-) %IT=100
207Tl 4.77 m 1/2+ %β-=100
207m1Tl 1.33 s 11/2- %IT=100, %β- < 0.1
208Tl 3.053 m 5(+) %β-=100
209Tl 2.20 m (1/2+ ) %β-=100
210Tl 1.30 m (5+ ) %β-=100, %β-n=0.007 +7- 4


Lead

Main article: Isotopes of lead

Isotope Half-life Spin Parity Mode(s) or Abundance
181Pb 45 ms (13/2+ ) %α ~ 98
182Pb 55 ms 0+ %α=?
183Pb 300 ms (1/2-) %α ~ 94, %K+%β+ ~ 6
184Pb 0.55 s 0+ %α=?
185Pb 4.1 s %α < 100
186Pb 4.83 s 0+ %α=54, %K+%β+=46
187Pb 18.3 s (13/2+ ) %K+%β+=98.0, %α=2.0
187m1Pb 15.2 s %α=?, %K+%β+=?
188Pb 24 s 0+ %K+%β+=91.5, %α=8.5
189Pb 51 s %K+%β+ > 99, %α ~ 0.4
190Pb 1.2 m 0+ %K+%β+=99.79, %α=0.21
191Pb 1.33 m (3/2-) %K+%β+=99.987, %α=0.013
191m1Pb 2.18 m (13/2+ ) %K+%β+=100, %α ~ 0.02
192Pb 3.5 m 0+ %K+%β+=99.9941, %α=0.0059
193Pb 2 m (3/2-) %K+%β+=?
193m1Pb 5.8 m (13/2+ ) %K+%β+=100
194Pb 12.0 m 0+ %K+%β+=100, %α=7.3E-6
195Pb 15 m 3/2- %K+%β+=100
195m1Pb 15.0 m 13/2+ %K+%β+=100
196Pb 37 m 0+ %K+%β+=100, %α < 3E-5
197Pb 8 m 3/2- %K+%β+=100
197m1Pb 43 m 13/2+ %K+%β+=81, %IT=19
198Pb 2.40 h 0+ %K+%β+=100
199Pb 90 m 3/2- %K+%β+=100
199m1Pb 12.2 m 13/2+ %IT=93, %K+%β+=7
200Pb 21.5 h 0+ %K=100
201Pb 9.33 h 5/2- %K+%β+=100
201m1Pb 61 s 13/2+ %IT>99, %K+%β+<1
202Pb 5.25e4 a 0+ %K=100, %α<1
202m1Pb 3.53 h 9- %IT=90.5, %K+%β+=9.5
203Pb 51.873 h 5/2- %K=100
203m1Pb 6.3 s 13/2+ %IT=100
203m2Pb 0.48 s 29/2- %IT=100
204Pb stable (>1.4e17 a) 0+ %Abundance=1.4
204m1Pb 67.2 m 9- %IT=100
205Pb 1.53e+7 a 5/2- %K=100
205m1Pb 5.54 ms 13/2+ %IT=100
206Pb stable 0+ %Abundance=24.1
207Pb stable 1/2- %Abundance=22.1
207m1Pb 0.805 s 13/2+ %IT=100
208Pb stable 0+ %Abundance=52.4
209Pb 3.253 h 9/2+ %β-=100
210Pb 22.3 a 0+ %β-=100, %α=1.9E-6
211Pb 36.1 m 9/2+ %β- =100
212Pb 10.64 h 0+ %β-=100
213Pb 10.2 m (9/2+ ) %β-=100
214Pb 26.8 m 0+ %β-=100
215Pb 36 s (5/2+ ) %β-=100

Bismuth

Main article: Isotopes of bismuth

Isotope Half-life Spin Parity Mode(s) or Abundance
185Bi 44 μs (1/2+ ) %p ~ 100
186Bi 15.0 ms (3+ ) %α ~ 100
186m1Bi 9.8 ms (10- ) %α ~ 100
187Bi 35 ms (9/2-) %α>50
187m1Bi 0.8 ms (1/2+ )
188Bi 0.21 s %α=?, %K+%β+=?
188m1Bi 44 ms %α=?, %K+%β+=?
189Bi 680 ms (9/2-) %α > 50, %K+%β+ < 50
189m1Bi 5 ms (1/2+ ) %α > 50, %K+%β+ < 50
190Bi 6.3 s (3+ ) %α=80, %K+%β+=20
190m1Bi 6.2 s (10- ) %α=70, %K+%β+=30
191Bi 12 s (9/2-) %α=60, %K+%β+=40
191m1Bi 150 ms (1/2+ ) %α > 50, %K+%β+ < 50
192Bi 37 s (2+, 3+ ) %K+%β+=82, %α=18
192m1Bi 39.6 s (10- ) %K+%β+=90.8, %α=9.2
193Bi 67 s (9/2-) %K+%β+=96.5, %α=3.5
193m1Bi 3.2 s (1/2+ ) %α=90 +10-20, %K+%β+=10 +20-10
194Bi 95 s (3+ ) %K+%β+=99.54, %α=0.46
194m1Bi 115 s (10- ) %K+%β+=99.80, %α=0.20
194m2Bi 125 s (6+, 7+ ) %K+%β+=100
195Bi 183 s (9/2-) %K+%β+=99.967, %α=0.033
195m1Bi 87 s (1/2+ ) %K+%β+=67, %α=33
196Bi 308 s (3+ ) %K+%β+=100, %α=0.00115
196m1Bi 0.6 s (7+ ) %IT=100
196m2Bi 240 s (10- ) %K+%β+=74.2, %IT=25.8, %α=0.00038
197Bi 9.33 m (9/2-) %K+%β+=100, %α=1E-4 sys
197m1Bi 5.04 m (1/2+ ) %K+%β+=45, %α=55, %IT < 0.3
198Bi 10.3 m (2+, 3+ ) %K+%β+=100
198m1Bi 11.6 m (7+ ) %K+%β+=100
198m2Bi 7.7 s (10- ) %IT=100
199Bi 27 m 9/2- %K+%β+=100
199m1Bi 24.70 m (1/2+ ) %K+%β+=99, %α ~ 0.01, %IT < 2
200Bi 36.4 m 7+ %K+%β+=100
200m1Bi 31 m (2+ ) %K+%β+ > 90, %IT < 10
200m2Bi 0.40 s (10- ) %IT=100
201Bi 108 m 9/2- %K+%β+=100, %α < 1E-4
201m1Bi 59.1 m 1/2+ %K > 93, %IT < 6.8, %α ~ 0.3
202Bi 1.72 h 5+ %K+%β+=100, %α<1E-5
203Bi 11.76 h 9/2- %K+%β+=100, %α ~ 1E-5
203m1Bi 303 ms 1/2+ %IT=100
204Bi 11.22 h 6+ %K+%β+=100
204m1Bi 13.0 ms 10- %IT=100
204m2Bi 1.07 ms (17+ ) %IT=100
205Bi 15.31 d 9/2- %K+%β+=100
206Bi 6.243 d 6(+) %K+%β+=100
207Bi 31.55 a 9/2- %K+%β+=100
208Bi 3.68e+5 a (5) + %K+%β+=100
208m1Bi 2.58 ms (10) - %IT=100
209Bi 1.9e+19 a 9/2- %Abundance=100, %α=100
210Bi 5.013 d 1- %β-=100, %α=1.32E-4
210m1Bi 3.04e+6 a 9- %α=100
211Bi 2.14 m 9/2- %α=99.724, %β-=0.276
212Bi 60.55 m 1(-) %β-=64.06, %α=35.94, %β-α=0.023
212m1Bi 25.0 m (9-) %α=67, %β-=33, %β-α=30
212m2Bi 7.0 m %β- ~ 100
213Bi 45.59 m 9/2- %β-=97.91, %α=2.09
214Bi 19.9 m 1- %β-=99.979, %α=0.021
215Bi 7.6 m %β-=100
216Bi 3.6 m (1-) %β- ~ 100
217Bi 97 s (9/2-) %β-=100

Polonium

Main article: Isotopes of polonium

Isotope Half-life Spin Parity Mode(s) or Abundance
190Po 2.0 ms 0+ %α=100, %K+%β+=0.1 sys
191Po 15.5 ms %α=?
192Po 0.0332 s 0+ %α=100
193Po 0.42 s (3/2- ) %α=?
193m1Po 0.24 s (13/2+ ) %α=?
194Po 0.392 s 0+ %α=93
195Po 4.64 s (3/2- ) %α=75, %K+%β+=25
195m1Po 1.92 s (13/2+ ) %α ~ 90, %K+%β+ ~ 10, %IT < 0.01
196Po 5.8 s 0+ %α ~ 98, %K+%β+ ~ 2
197Po 53.6 s (3/2- ) %K+%β+=56, %α=44
197m1Po 25.8 s (13/2+ ) %α=84, %K+%β+=16, %IT=0.01 sys
198Po 1.77 m 0+ %α=57, %K+%β+=43
199Po 5.48 m 3/2- %K+%β+=88, %α=12
199m1Po 4.13 m 13/2+ %K+%β+=59, %α=39, %IT=2.1
200Po 11.5 m 0+ %α=11.1, %K+%β+=88.9
201Po 15.3 m 3/2- %K+%β+=98.4, %α=1.6
201m1Po 8.9 m 13/2+ %IT=56, %K=41, %α ~ 2.9
202Po 44.7 m 0+ %K+%β+=98.08, %α=1.92
202m1Po 85 ns 8+
202m2Po 200 ns 11-
202m3Po 19 ns 12+
202m4Po 11 ns (15-)
203Po 36.7 m 5/2- %K+%β+=99.89, %α=0.11
203m1Po 45 s 13/2+ %IT ~ 100, %α ~ 0.04 sys
204Po 3.53 h 0+ %K+%β+=99.34, %α=0.66
205Po 1.66 h 5/2- %K+%β+=99.96, %α=0.04
205m1Po 58 ms 19/2- %IT=100
206Po 8.8 d 0+ %K+%β+=94.55, %α=5.45
207Po 5.80 h 5/2- %K+%β+=99.979, %α=0.021
207m1Po 2.8 s 19/2- %IT=100
208Po 2.898 a 0+ %α=99.9958, %K+%β+=0.0042
209Po 102 a 1/2- %α=99.52, %K+%β+=0.48
210Po 138.376 d 0+ %α=100
211Po 0.516 s 9/2+ %α=100
211m1Po 25.2 s (25/2+ ) %α=99.984, %IT=0.016
212Po 0.299 μs 0+ %α=100
212m1Po 45.1 s (18+) %α=99.93, %IT=0.07
213Po 4.2 μs 9/2+ %α=100
214Po 164.3 μs 0+ %α=100
215Po 1.781 ms 9/2+ %α=99.99977, %β-=2.3E-4
216Po 0.145 s 0+ %α=100
217Po 10 s %α > 95, %β- < 5
218Po 3.10 m 0+ %α=99.980, %β-=0.020

Astatine

Main article: Isotopes of astatine

Isotope Half-life Spin Parity Mode(s) or Abundance
193At 40 ms %α=?
194At 40 ms %α=?
194m1At 250 ms %α=?
195At 0.63 s %α > 75, %K+%β+ < 25
196At 0.253 s %α ~ 100
197At 0.35 s (9/2- ) %α=96, %K+%β+=4
197m1At 3.7 s (1/2+ ) %α=?, %K+%β+=?
198At 4.2 s (3+ ) %α=90, %K+%β+=10
198m1At 1.0 s (10- ) %α=84, %K+%β+=16
199At 7.2 s (9/2- ) %α=90, %K+%β+=10
200At 43 s (3+ ) %α=57, %K+%β+=43
200m1At 47 s (7+) %α=43, %K+%β+ < 57
200m2At 3.5 s (10- ) %α ~ 10.5, %IT ~ 85, %K ~ 4.5
201At 89 s (9/2- ) %α=71, %K+%β+=29
202At 184 s (2,3)+ %K+%β+=82, %α=18
202m1At 182 s (7+) %K+%β+=91.3, %α=8.7
202m2At 0.46 s (10- ) %IT=99.7, %K+%β+=0.25 sys %α=0.096
203At 7.4 m 9/2- %K+%β+=69, %α=31
204At 9.2 m 7+ %K+%β+=96.2, %α=3.8
204m1At 108 ms (10- ) %IT=100
205At 26.2 m 9/2- %K+%β+=90, %α=10
206At 30.0 m (5)+ %K+%β+=99.11, %α=0.89
207At 1.80 h 9/2- %K+%β+=91.4, %α=8.6
208At 1.63 h 6+ %K+%β+=99.45, %α=0.55
209At 5.41 h 9/2- %K+%β+=95.9, %α=4.1
210At 8.1 h (5)+ %K+%β+=99.825, %α=0.175
211At 7.214 h 9/2- %α=41.80, %K=58.20
212At 0.314 s (1- ) %α=100, %β- < 2E-6, %K+%β+ < 3E-2
212m1At 0.119 s (9-) %α > 99, %IT < 1
213At 125 ns 9/2- %α=100
214At 558 ns 1- %α=100
214m1At 265 ns
214m2At 760 ns 9-
215At 0.10 ms 9/2- %α=100
216At 0.30 ms 1- %α=100, %K<3E-7, %β-<6E-3
216m1At 0.1 ms (9-)
217At 32.3 ms 9/2- %α=99.988, %β-=0.012
218At 1.5 s %α=99.9, %β-=0.1
219At 56 s %α ~ 97, %β- ~ 3
220At 3.71 m 3 %α=8, %β-=92
221At 2.3 m %β-=100
222At 54 s %β-=100
223At 50 s %β-=100, %α=0.008 sys

Radon

Main article: Isotopes of radon

Isotope Half-life Spin Parity Mode(s) or Abundance
196Rn 3 ms 0+ %α ~ 100
197Rn 65 ms (3/2- ) %α ~ 100
197m1Rn 19 ms (13/2+ ) %α ~ 100
198Rn 64 ms 0+ %α=100
199Rn 0.62 s (3/2- ) %α=94 sys, %K+%β+=6 sys
199m1Rn 0.32 s (13/2+ ) %α=97 sys, %K+%β+=3 sys
200Rn 0.96 s 0+ %α=86 +14-4, %K+%β+<18
201Rn 7.0 s (3/2- ) %α ~ 80, %K+%β+ ~ 20
201m1Rn 3.8 s (13/2+ ) %α ~ 90, %K+%β+ ~ 10, %IT ~ 0
202Rn 10.0 s 0+ %α=86, %K+%β+=14
203Rn 45 s (3/2,5/2)- %α=66, %K+%β+=34
203m1Rn 28 s (13/2+ ) %α ~ 80 sys%K+%β+ ~ 20 sys
204Rn 1.24 m 0+ %α=73, %K+%β+=27
205Rn 2.8 m 5/2- %K+%β+=77, %α=23
206Rn 5.67 m 0+ %α=63, %K+%β+=37
207Rn 9.25 m 5/2- %K+%β+=79, %α=21
208Rn 24.35 m 0+ %α=62, %K+%β+=38
209Rn 28.5 m 5/2- %K+%β+=83, %α=17
210Rn 2.4 h 0+ %α=96, %K+%β+=4
211Rn 14.6 h 1/2- %K=72.6, %α=27.4
212Rn 23.9 m 0+ %α=100
213Rn 25.0 ms (9/2+ ) %α=100
214Rn 0.27 μs 0+ %α=100
214m1Rn 0.69 ns 6+
214m2Rn 6.5 ns 8+
215Rn 2.30 μs 9/2+ %α=100
216Rn 45 μs 0+ %α=100
217Rn 0.54 ms 9/2+ %α=100
218Rn 35 ms 0+ %α=100
219Rn 3.96 s 5/2+ %α=100
220Rn 55.6 s 0+ %α=100
221Rn 25 m 7/2(+) %β-=78, %α=22
222Rn 3.8235 d 0+ %α=100
223Rn 23.2 m 7/2 %β-=100, %α=0.0004 sys
224Rn 107 m 0+ %β-=100
225Rn 4.5 m 7/2- %β-=100
226Rn 7.4 m 0+ %β-=100
227Rn 22.5 s %β-=100
228Rn 65 s 0+ %β-=100

Francium

Main article: Isotopes of francium

Isotope Half-life Spin Parity Mode(s) or Abundance
200Fr 19 ms (3+ ) %α=100
200m1Fr 0.57 s (10- ) %α=100
201Fr 48 ms (9/2- ) %α=100, %K+%β+ < 1
202Fr 0.34 s (3+ ) %α ~ 97, %K+%β+ ~ 3
202m1Fr 0.34 s (10- ) %α ~ 97, %K+%β+ ~ 3
203Fr 0.55 s (9/2- ) %α ~ 95, %K+%β+ ~ 5
204Fr 1.7 s (3+ ) %α ~ 80, %K+%β+ ~ 20
204m1Fr 2.6 s (7+) %α=?
204m2Fr 1 s (10- ) %α=?
205Fr 3.85 s (9/2- ) %α > 99, %K+%β+ < 1
206Fr 15.9 s (5+) %α=84, %K+%β+=16
206m1Fr 0.7 s (10- ) %α=0.3, %IT=?
207Fr 14.8 s 9/2- %α=95, %K+%β+=5
208Fr 59.1 s 7+ %α=90, %K+%β+=10
209Fr 50.0 s 9/2- %α=89, %K+%β+=11
210Fr 3.18 m 6+ %α=60, %K+%β+=40
211Fr 3.10 m 9/2- %α>80, %K<20
212Fr 20.0 m 5+ %K+%β+=57, %α=43
213Fr 34.6 s 9/2- %α=99.45, %K+%β+=0.55
214Fr 5.0 ms (1- ) %α=100
214m1Fr 3.35 ms (8-) %α=100
215Fr 86 ns 9/2- %α=100
215m1Fr 3.5 ns (23/2)-
216Fr 0.70 μs (1- ) %α=100, %K<2E-7 sys
217Fr 22 μs 9/2- %α=100
218Fr 1.0 ms 1- %α=100
218m1Fr 22.0 ms %α < 100, %IT=?
219Fr 20 ms 9/2- %α=100
220Fr 27.4 s 1+ %α=99.65, %β-=0.35
221Fr 4.9 m 5/2- %α=100, %γ=8.8E-11
222Fr 14.2 m 2- %β-=100
223Fr 21.8 m 3/2(-) %β-=99.994, %α=0.006
224Fr 3.33 m 1- %β-=100
225Fr 4.0 m 3/2- %β-=100
226Fr 49 s 1- %β-=100
227Fr 2.47 m 1/2+ %β-=100
228Fr 38 s 2- %β-=100
229Fr 50 s %β-=100
230Fr 19.1 s %β-=100
231Fr 17.5 s %β-=100
232Fr 5 s %β-=100

Radium

Main article: Isotopes of radium

Isotope Half-life Spin Parity Mode(s) or Abundance
202Ra 0.7 ms 0+ %α=100
203Ra 1.0 ms (3/2- ) %α ~ 100
203m1Ra 33 ms (13/2+ ) %α ~ 100
204Ra 59 ms 0+ %α ~ 100
205Ra 210 ms (3/2- ) %α=?
205m1Ra 170 ms (13/2+ ) %α=?
206Ra 0.24 s 0+ %α ~ 100
207Ra 1.3 s (5/2,3/2)- %α ~ 90, %K+%β+ ~ 10
207m1Ra 55 ms (13/2+ ) %IT=85 sys%α=15 sys %K+%β+ ~ 0.55
208Ra 1.3 s 0+ %α=95 sys %K+%β+=5 sys
209Ra 4.6 s 5/2- %α ~ 90, %K+%β+ ~ 10
210Ra 3.7 s 0+ %α ~ 96, %K+%β+ ~ 4
211Ra 13 s 5/2(-) %α > 93, %K < 7
212Ra 13.0 s 0+ %α ~ 85, %K+%β+ ~ 15
213Ra 2.74 m 1/2- %α=80, %K+%β+=20
213m1Ra 2.1 ms %IT ~ 99, %α ~ 1
214Ra 2.46 s 0+ %α=99.941, %K=0.059
215Ra 1.59 ms (9/2+ ) %α=100
216Ra 182 ns 0+ %α=100, %K<1E-8
217Ra 1.6 μs (9/2+ ) %α=100
218Ra 25.6 μs 0+ %α=100
219Ra 10 ms (7/2)+ %α=100
220Ra 18 ms 0+ %α=100
221Ra 28 s 5/2+ %α=100, %γ=1.2E-10
222Ra 38.0 s 0+ %α=100, %14C=3.0E-8
223Ra 11.435 d 3/2+ %α=100, %14C=6.4E-8
224Ra 3.66 d 0+ %α=100, %14C=4.3E-9
225Ra 14.9 d 1/2+ %β-=100
226Ra 1600 a 0+ %α=100, %14C=3.2E-9
227Ra 42.2 m 3/2+ %β-=100
228Ra 5.75 a 0+ %β-=100
229Ra 4.0 m 5/2(+) %β-=100
230Ra 93 m 0+ %β-=100
231Ra 103 s (7/2-,1/2+ ) %β-=100
232Ra 250 s 0+ %β-=100
233Ra 30 s %β-=100
234Ra 30 s 0+ %β-=100

Actinium

Main article: Isotopes of actinium

Isotope Half-life Spin Parity Mode(s) or Abundance
206Ac 22 ms (3+ ) %α=?
206m1Ac 33 ms (10- )
207Ac 22 ms (9/2- ) %α ~ 100
208Ac 95 ms (3+ ) %α=?
208m1Ac 25 ms (10- ) %α=?
209Ac 0.10 s (9/2- ) %α ~ 99, %K+%β+ ~ 1
210Ac 0.35 s %α ~ 96, %K+%β+ ~ 4
211Ac 0.25 s %α ~ 100
212Ac 0.93 s %α ~ 97, %K+%β+ ~ 3
213Ac 0.80 s %α < 100
214Ac 8.2 s %α > 89, %K < 11
215Ac 0.17 s 9/2- %α=99.91, %K+%β+=0.09
216Ac 0.33 ms (1- ) %α=100
216m1Ac 0.33 ms (9-)
217Ac 69 ns 9/2- %α=100, %K+%β+ < 2
217m1Ac 740 ns (29/2)+
218Ac 1.08 μs (1- ) %α=100
219Ac 11.8 μs 9/2- %α=100, %K+%β+ ~ 1E-6
220Ac 26.4 ms (3-) %α=100
221Ac 52 ms (3/2- ) %α=100
222Ac 5.0 s 1- %α=99, %K+%β+=1
222m1Ac 63 s %α > 88, %IT < 10, %K+%β+ < 2
223Ac 2.10 m (5/2- ) %α=99, %K=1
224Ac 2.78 h 0- %K=90.9 +14-20, %α=9.1 +20-14, %β- < 1.6 sys
225Ac 10.0 d (3/2- ) %α=100, %14C=6.0E-10
226Ac 29.37 h (1) %α=6E-3, %β-=83, %K=17
227Ac 21.773 a 3/2- %β-=98.620, %α=1.380
228Ac 6.15 h 3+ %β-=100
229Ac 62.7 m (3/2+ ) %β-=100
230Ac 122 s (1+ ) %β-=100
231Ac 7.5 m (1/2+ ) %β-=100
232Ac 119 s (1+ ) %β-=100
233Ac 145 s (1/2+ ) %β-=100
234Ac 44 s %β-=100

Thorium

Main article: Isotopes of thorium

Isotope Half-life Spin Parity Mode(s) or Abundance
210Th 9 ms 0+ %α ~ 100
211Th 37 ms %α=?, %K=?
212Th 30 ms 0+ %α=100, %K+%β+ ~ 0.3
213Th 140 ms %α < 100
214Th 100 ms 0+ %α=100
215Th 1.2 s (1/2- ) %α=100
216Th 0.028 s 0+ %α=100, %K+%β+ ~ 0.01 sys
216m1Th 180 μs (8+,11- )
217Th 0.252 ms (9/2+ ) %α=100
218Th 109 ns 0+ %α=100
219Th 1.05 μs %α=100, %K+%β+ ~ 1E-7
220Th 9.7 μs 0+ %α=100, %K=2E-7 sys
221Th 1.68 ms (7/2+ ) %α=100
222Th 2.8 ms 0+ %α=100
223Th 0.60 s (5/2)+ %α=100
224Th 1.05 s 0+ %α=100
225Th 8.72 m (3/2)+ %α ~ 90, %K ~ 10
226Th 30.57 m 0+ %α=100
227Th 18.72 d (1/2+ ) %α=100
228Th 1.9116 a 0+ %α=100, %20O=1.13E-11
229Th 7340 a 5/2+ %α=100
230Th 7.538e+4 a 0+ %α=100, %24NE=5.6E-11, %SF < 3.8E-12
231Th 25.52 h 5/2+ %β-=100, %α ~ 1E-8
232Th 1.405e10 a 0+ %Abundance=100, %α=100, %SF<1.8E-9
233Th 22.3 m 1/2+ %β-=100
234Th 24.10 d 0+ %β-=100
235Th 7.1 m (1/2+ ) %β-=100
236Th 37.5 m 0+ %β-=100
237Th 5.0 m %β-=100

Protactinium

Main article: Isotopes of protactinium

Isotope Half-life Spin Parity Mode(s) or Abundance
<212Pa 5.1 ms (3+ ) %α=?
213Pa 5.3 ms %α=?
214Pa 17 ms %α=?
215Pa 14 ms %α=100
216Pa 0.20 s %K ~ 2 sys %α ~ 98 sys
217Pa 4.9 ms %α =100
217m1Pa 1.6 ms %α < 100
218Pa 0.12 ms %α=100
219Pa 53 ns 9/2- %α=100, %K+%β+ ~ 5E-9
220Pa 0.78 μs %α=100, %K+%β+=3E-7 sys
221Pa 5.9 μs 9/2- %α=100
222Pa 2.9 ms %α=100
223Pa 6.5 ms %α=100, %K+%β+ < 1.0E-3
224Pa 0.79 s %α=100
225Pa 1.7 s %α=100
226Pa 1.8 m %α=74, %K+%β+=26
227Pa 38.3 m (5/2- ) %α=85, %K=15
228Pa 22 h 3+ %K+%β+=98.0, %α=2.0
229Pa 1.50 d (5/2+ ) %K=99.52, %α=0.48
230Pa 17.4 d (2- ) %K+%β+=91.6, %β-=8.4, %α=0.0032
231Pa 32760 a 3/2- %α=100, %SF < 1.6E-11
232Pa 1.31 d (2- ) %β-=99.997, %K=0.003
233Pa 26.967 d 3/2- %β-=100
234Pa 6.70 h 4+ %β-=100, %SF < 3E-10
234m1Pa 1.17 m (0- ) %β-=99.84, %IT=0.16, %SF < 1E-9
235Pa 24.5 m (3/2- ) %β-=100
236Pa 9.1 m 1(-) %β-=100
237Pa 8.7 m (1/2+ ) %β-=100
238Pa 2.3 m (3-) %β-=100, %SF < 2.6E-6

Uranium

Main article: Isotopes of uranium

Isotope Half-life Spin Parity Mode(s) or Abundance
218U 1.5 ms 0+ %α=100
219U 42 μs %α=?
220U
221U
222U 1.0 μs 0+ %α=100
223U 18 μs %α=?
224U 0.9 ms 0+ %α=100
225U 95 ms %α=100
226U 0.35 s 0+ %α=100
227U 1.1 m (3/2+ ) %α=100, %K+%β+ < 0.001
228U 9.1 m 0+ %K<5, %α>95
229U 58 m (3/2+ ) %K+%β+ ~ 80, %α ~ 20
230U 20.8 d 0+ %α=100, %SF < 1.4E-10
231U 4.2 d (5/2- ) %K=100, %α ~ 0.0055
232U 68.9 a 0+ %α=100, %24NE=9E-11
233U 1.592e+5 a 5/2+ %α=100, %SF < 6E-11, %24NE < 9.5E-11
234U 2.455e+5 a 0+ %Abundance=0.0055, %α=100, %SF=1.64E-9, %nE=9E-12, %MG=1.4E-11
235U 7.038e+8 a 7/2- %Abundance=0.7200, %α=100, %SF=7.0E-9, %20NE=8E-10
235m1U 25 m 1/2+ %IT=100
236U 2.342e7 a 0+ %α=100, %SF=9.4E-8
237U 6.75 d 1/2+ %β-=100
238U 4.468e+9 a 0+ %Abundance=99.2745, %α=100, %SF=5.45E-5, %ββ=2.2E-10
238m1U 225 ns 0+
238m2U 1 ns
239U 23.45 m 5/2+ %β-=100
240U 14.1 h 0+ %β-=100
241U
242U 16.8 m 0+ %β-=100

Neptunium

Main article: Isotopes of neptunium

Isotope Half-life Spin Parity Mode(s) or Abundance
225Np 6 ms %α=?
226Np 35 ms %α=100
227Np 0.51 s %α=100, %K+%β+ ~ 0.05
228Np 61.4 s %K=60, %α=40, %KSF=0.020
229Np 4.0 m %α > 50, %K < 50
230Np 4.6 m %K+%β+ < 97, %α > 3
231Np 48.8 m (5/2) %K=98, %α=2
232Np 14.7 m (4+ ) %K+%β+=100
233Np 36.2 m (5/2+ ) %K=100, %α < 0.001
234Np 4.4 d (0+ ) %K+%β+=100
235Np 396.1 d 5/2+ %K=99.99740, %α=0.00260
236Np 1.54e5 a (6-) %K=87.3, %β-=12.5, %α=0.16
236m1Np 22.5 h 1 %K=52, %β-=48
237Np 2.144e+6 a 5/2+ %α=100, %SF < 2E-10
237m1Np 45 ns
238Np 2.117 d 2+ %β-=100
238m1Np 112 ns
239Np 2.3565 d 5/2+ %β-=100
240Np 61.9 m (5+) %β-=100
240m1Np 7.22 m 1(+) %β-=99.89, %IT=0.11
241Np 13.9 m (5/2+ ) %β-=100
242Np 5.5 m (6) %β-=100
242m1Np 2.2 m (1+ ) %β-=100
243Np 1.8 m (5/2- ) %β-=100
244Np 2.29 m (7-) %β-=100

Plutonium

Main article: Isotopes of plutonium

Isotope Half-life Spin Parity Mode(s) or Abundance
228Pu 4 ms 0+ %α=100
229Pu %α=?
230Pu 0+ %α=?
231Pu
232Pu 34.1 m 0+ %K=77, %α=23
233Pu 20.9 m %K+%β+=99.88, %α=0.12
234Pu 8.8 h 0+ %K ~ 94, %α ~ 6
234m1Pu 3 ns
235Pu 25.3 m (5/2+ ) %K+%β+=99.9973, %α=0.0027
235m1Pu 25 ns
236Pu 2.858 a 0+ %α=100, %SF=1.37E-7
236m1Pu 37 ps (0+ )
236m2Pu 34 ns
237Pu 45.2 d 7/2- %α=0.0042, %K=99.9958
237m1Pu 0.18 s 1/2+ %IT=100
237m2Pu 85 ns
237m3Pu 1.1 μs
238Pu 87.7 a 0+ %α=100, %SF=1.85E-7, %MG ~ 6E-15, %SI ~ 1.4E-14
238m1Pu 0.6 ns
238m2Pu 6.0 ns (0+ )
239Pu 24110 a 1/2+ %α=100, %SF=3.0E-10
239m1Pu 7.5 μs (5/2+ )
239m2Pu 2.6 ns (9/2- )
240Pu 6563 a 0+ %α=100, %SF=5.75E-6
241Pu 14.35 a 5/2+ %β-=99.998, %α=0.00245, %SF ~ 2.4E-14
241m1Pu 21 μs
241m2Pu 32 ns
242Pu 3.733e+5 a 0+ %α=100, %SF=5.54E-4
243Pu 4.956 h 7/2+ %β-=100
243m1Pu 45 ns
244Pu 8.08e+7 a 0+ %α=99.879, %SF=0.121, %ββ < 3E-11
245Pu 10.5 h (9/2- ) %β-=100
245m1Pu 90 ns
246Pu 10.84 d 0+ %β-=100
247Pu 2.27 d %β-=100

Americium

Main article: Isotopes of americium

Isotope Half-life Spin Parity Mode(s) or Abundance
232Am 79 s %K ~ 98, %α ~ 2, %KSF=0.069
233Am
234Am 2.32 m %K=99.961, %α=0.039, %KSF=0.0066
235Am 15 m %K+%β+=?, %α=?
236Am %K=?, %α=?
237Am 73.0 m 5/2(-) %α=0.025, %K=99.975
237m1Am 5 ns
238Am 98 m 1+ %K+%β+>99.99, %α=1.0E-4
238m1Am 35 μs
239Am 11.9 h (5/2)- %K=99.990, %α=0.010
239m1Am 163 ns (7/2+ )
240Am 50.8 h (3-) %K=100, %α=1.9E-4
241Am 432.2 a 5/2- %α=100, %SF=4.3E-10
241m1Am 1.2 μs
242Am 16.02 h 1- %β-=82.7, %K=17.3
242m1Am 141 a 5- %IT=99.541, %α=0.459, %SF < 4.7E-9
242m2Am 14.0 ms %SF=?, %IT=?
243Am 7370 a 5/2- %α=100, %SF=3.7E-9
243m1Am 5.5 μs
244Am 10.1 h (6-) %β-=100
244m1Am 26 m 1+ %β-=99.9639, %K=0.0361
245Am 2.05 h (5/2)+ %β-=100
245m1Am 0.64 μs
246Am 39 m (7-) %β-=100
246m1Am 25.0 m 2(-) %β-=100, %IT<0.01
246m2Am 73 μs
247Am 23.0 m (5/2) %β-=100

Curium

Main article: Isotopes of curium

Isotope Half-life Spin Parity Mode(s) or Abundance
238Cm 2.4 h 0+ %K=96.16, %α=3.84
239Cm 2.9 h (7/2- ) %K= 100, %α < 0.1
240Cm 27 d 0+ %α > 99.5, %K < 0.5, %SF=3.9E-6
241Cm 32.8 d 1/2+ %K=99.0, %α=1.0
241m1Cm 15.3 ns
242Cm 162.8 d 0+ %α=100, %SF=6.37E-6
242m1Cm 40 ps
242m2Cm 0.18 μs
243Cm 29.1 a 5/2+ %α=99.71, %K=0.29, %SF=5.3E-9
243m1Cm 42 ns
244Cm 18.10 a 0+ %α=100, %SF=1.371E-4
244m1Cm 34 ms 6+ %IT=100, %SF < 7.7E-10
245Cm 8500 a 7/2+ %α=100, %SF=6.1E-7
245m1Cm 13.2 ns
246Cm 4730 a 0+ %α=99.9737, %SF=0.0263
247Cm 1.56e+7 a 9/2- %α=100
248Cm 3.40e+5 a 0+ %α=91.61, %SF=8.39
249Cm 64.15 m 1/2(+) %β-=100
250Cm 9000 a 0+ %SF ~ 86, %α ~ 8, %β- ~ 6
251Cm 16.8 m (1/2+ ) %β-=100
252Cm 2 d 0+ %β-=100
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