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.

• Neutron + Element 1 (Hydrogen) - Element 24 (Chromium)
• Element 25 (Manganese) - Element 48 (Cadmium)
• Element 49 (Indium) - Element 72 (Hafnium)
• Element 73 (Tantalum) - Element 96 (Curium)
• Element 97 (Berkelium) and greater
• List of radioactive isotopes by half-life

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