Isotope table (divided)
These tables show all of the known isotopes of the chemical elements, arranged with increasing atomic number from left to right and increasing neutron number from top to bottom. Half lives are indicated by the color of each isotope's cell, with isotopes having alternative decay paths having differing foreground and background colors.
The whole table can be found in one piece at Isotope table (complete). The data for these tables came from http://www2.bnl.gov/CoN/nuchart1.html
El Unstable El 1-10 days El 10-100 days El 100 days - 10 years El 10-10,000 years El >10,000 years El Natural radioactive El Stable
p
1
2
H
He
3
4
n
H
Li
Be
5
6
1
D
3He
B
C
7
2
T
4He
5Li
6Be
8C
N
8
3
5He
6Li
7Be
8B
9C
O
9
4
6He
7Li
8Be
9B
10C
11N
F
10
5
8Li
9Be
10B
11C
12N
13O
Ne
11
6
8He
9Li
10Be
11B
12C
13N
14O
Na
12
7
11Be
12B
13C
14N
15O
16F
17Ne
Mg
13
8
11Li
12Be
13B
14C
15N
16O
17F
18Ne
19Na
20Mg
Al
14
9
14B
15C
16N
17O
18F
19Ne
20Na
21Mg
Si
15
10
14Be
15B
16C
17N
18O
19F
20Ne
21Na
22Mg
23Al
P
11
17C
18N
19O
20F
21Ne
22Na
23Mg
24Al
25Si
12
17B
18C
19N
20O
21F
22Ne
23Na
24Mg
25Al
26Si
27P
13
19C
20N
21O
22F
23Ne
24Na
25Mg
27Si
28P
14
21N
22O
23F
24Ne
25Na
26Mg
27Al
28Si
29P
15
23O
24F
25Ne
26Na
27Mg
28Al
29Si
30P
16
24O
25F
26Ne
27Na
28Mg
29Al
30Si
31P
17
27Ne
28Na
29Mg
30Al
31Si
32P
18
29Na
30Mg
31Al
32Si
33P
19
30Na
31Mg
32Al
33Si
34P
20
31Na
32Mg
33Al
34Si
35P
21
32Na
34Al
35Si
36P
22
33Na
36Si
37P
23
38P
24
39P
p
16
S
17
n
Cl
18
13
29S
Ar
19
14
30S
31Cl
K
20
15
31S
32Cl
33Ar
Ca
16
32S
33Cl
34Ar
35K
21
17
33S
34Cl
35Ar
36K
37Ca
Sc
22
18
34S
35Cl
36Ar
37K
38Ca
Ti
23
19
35S
36Cl
37Ar
38K
39Ca
40Sc
41Ti
V
24
20
36S
37Cl
38Ar
39K
40Ca
41Sc
42Ti
Cr
25
21
37S
38Cl
39Ar
40K
41Ca
42Sc
43Ti
44V
45Cr
Mn
26
22
38S
39Cl
40Ar
41K
42Ca
43Sc
44Ti
46Cr
Fe
27
23
39S
40Cl
41Ar
42K
43Ca
44Sc
45Ti
46V
47Cr
49Fe
Co
28
24
40S
41Cl
42Ar
43K
44Ca
45Sc
46Ti
47V
48Cr
49Mn
50Fe
Ni
29
25
42Cl
43Ar
44K
45Ca
47Ti
48V
49Cr
50Mn
51Fe
53Ni
Cu
30
26
43Cl
44Ar
45K
46Ca
47Sc
48Ti
49V
50Cr
51Mn
52Fe
53Co
54Ni
Zn
27
45Ar
46K
47Ca
48Sc
49Ti
50V
51Cr
53Fe
54Co
55Ni
57Zn
28
46Ar
47K
48Ca
49Sc
50Ti
51V
52Cr
53Mn
54Fe
55Co
56Ni
29
48K
49Ca
50Sc
51Ti
52V
53Cr
54Mn
55Fe
56Co
57Ni
58Cu
30
49K
50Ca
51Sc
52Ti
53V
54Cr
55Mn
56Fe
57Co
58Ni
59Cu
60Zn
31
50K
53Ti
54V
55Cr
56Mn
57Fe
59Ni
60Cu
61Zn
32
55V
56Cr
57Mn
58Fe
59Co
60Ni
61Cu
62Zn
33
57Cr
58Mn
59Fe
61Ni
62Cu
63Zn
34
59Mn
60Fe
61Co
62Ni
63Cu
64Zn
35
61Fe
62Co
63Ni
64Cu
65Zn
36
62Fe
63Co
64Ni
65Cu
66Zn
37
64Co
65Ni
66Cu
67Zn
38
66Ni
67Cu
68Zn
39
67Ni
68Cu
69Zn
40
68Ni
69Cu
70Zn
41
70Cu
71Zn
42
72Zn
43
73Zn
44
74Zn
45
75Zn
46
76Zn
47
77Zn
p
31
32
Ga
Ge
n
61Ge
30
31
33
32
63Ga
64Ge
As
34
33
64Ga
65Ge
Se
35
36
34
65Ga
66Ge
68Se
Br
Kr
37
35
66Ga
67Ge
68As
69Se
Rb
36
67Ga
68Ge
69As
70Se
72Kr
38
37
68Ga
69Ge
70As
71Se
72Br
73Kr
74Rb
Sr
39
38
69Ga
70Ge
71As
72Se
73Br
74Kr
75Rb
Y
40
39
70Ga
72As
73Se
74Br
75Kr
76Rb
77Sr
Zr
40
71Ga
72Ge
73As
74Se
75Br
76Kr
77Rb
78Sr
41
72Ga
73Ge
74As
75Se
76Br
77Kr
78Rb
79Sr
81Zr
41
42
73Ga
74Ge
75As
76Se
78Kr
79Rb
80Sr
81Y
82Zr
Nb
42
43
74Ga
75Ge
76As
78Br
80Rb
81Sr
82Y
83Zr
84Nb
Mo
44
75Ga
76Ge
77As
78Se
80Kr
81Rb
82Sr
83Y
84Zr
43
45
76Ga
77Ge
78As
80Br
82Rb
84Y
85Zr
86Nb
87Mo
Tc
46
77Ga
78Ge
79As
80Se
81Br
82Kr
83Rb
84Sr
85Y
86Zr
87Nb
88Mo
44
47
78Ga
79Ge
80As
81Se
83Kr
86Y
87Zr
88Nb
89Mo
90Tc
Ru
45
48
79Ga
80Ge
81As
82Se
83Br
84Kr
85Rb
86Sr
88Zr
89Nb
90Mo
91Tc
92Ru
Rh
49
80Ga
81Ge
82As
83Se
84Br
90Nb
91Mo
92Tc
93Ru
50
81Ga
82Ge
83As
84Se
85Br
86Kr
87Rb
88Sr
92Mo
93Tc
94Ru
95Rh
51
82Ga
83Ge
84As
85Se
86Br
87Kr
88Rb
89Sr
91Zr
94Tc
95Ru
96Rh
52
83Ga
84Ge
85As
86Se
87Br
88Kr
89Rb
90Sr
92Zr
94Mo
96Ru
97Rh
53
86As
87Se
88Br
89Kr
90Rb
91Sr
92Y
93Zr
95Mo
97Ru
98Rh
54
87As
88Se
89Br
90Kr
91Rb
92Sr
93Y
94Zr
96Mo
98Ru
55
89Se
90Br
91Kr
92Rb
93Sr
94Y
95Zr
96Nb
97Mo
98Tc
99Ru
100Rh
56
91Br
92Kr
93Rb
94Sr
95Y
96Zr
97Nb
98Mo
100Ru
57
91Se
92Br
93Kr
94Rb
95Sr
96Y
97Zr
98Nb
99Mo
100Tc
101Ru
102Rh
58
94Kr
95Rb
96Sr
97Y
98Zr
99Nb
100Mo
101Tc
102Ru
59
95Kr
96Rb
97Sr
98Y
99Zr
100Nb
101Mo
102Tc
103Ru
104Rh
60
97Rb
98Sr
99Y
100Zr
101Nb
102Mo
103Tc
104Ru
61
97Kr
98Rb
99Sr
100Y
101Zr
102Nb
103Mo
104Tc
105Ru
106Rh
62
99Rb
102Zr
103Nb
104Mo
105Tc
106Ru
107Rh
63
102Y
104Nb
105Mo
106Tc
107Ru
108Rh
64
105Nb
106Mo
107Tc
108Ru
109Rh
65
106Nb
107Mo
108Tc
109Ru
110Rh
66
108Mo
109Tc
110Ru
111Rh
67
110Tc
111Ru
112Rh
68
112Ru
113Rh
69
113Ru
114Rh
p
46
Pd
47
48
n
Ag
Cd
51
97Pd
52
98Pd
99Ag
100Cd
49
53
99Pd
100Ag
101Cd
In
50
51
52
54
100Pd
101Ag
102Cd
Sn
Sb
Te
55
101Pd
102Ag
103Cd
104In
107Te
56
102Pd
103Ag
104Cd
105In
108Te
57
103Pd
104Ag
105Cd
106In
107Sn
109Te
53
54
58
104Pd
106Cd
107In
108Sn
I
Xe
55
59
105Pd
107Cd
108In
109Sn
110Sb
111Te
113Xe
Cs
60
106Pd
108Cd
109In
110Sn
111Sb
112Te
56
61
109Cd
110In
111Sn
112Sb
113Te
115Xe
116Cs
Ba
62
108Pd
110Cd
112Sn
113Sb
114Te
115I
116Xe
117Cs
63
109Pd
112In
114Sb
115Te
116I
117Xe
118Cs
119Ba
57
64
110Pd
112Cd
114Sn
115Sb
116Te
117I
118Xe
119Cs
La
65
111Pd
112Ag
115Sn
116Sb
117Te
118I
119Xe
120Cs
121Ba
66
112Pd
113Ag
114Cd
116Sn
117Sb
118Te
119I
120Xe
121Cs
122Ba
67
113Pd
114Ag
116In
118Sb
120I
121Xe
122Cs
123Ba
58
68
114Pd
115Ag
116Cd
117In
118Sn
119Sb
120Te
121I
122Xe
123Cs
124Ba
125La
Ce
69
115Pd
116Ag
117Cd
118In
122I
123Xe
124Cs
125Ba
126La
70
116Pd
117Ag
118Cd
119In
120Sn
121Sb
122Te
123I
124Xe
125Cs
126Ba
127La
59
71
117Pd
118Ag
119Cd
120In
124I
125Xe
126Cs
127Ba
128La
129Ce
Pr
60
72
118Pd
119Ag
120Cd
121In
122Sn
123Sb
124Te
125I
126Xe
127Cs
128Ba
129La
130Ce
Nd
73
120Ag
121Cd
122In
126I
128Cs
129Ba
130La
131Ce
132Pr
74
121Ag
122Cd
123In
124Sn
125Sb
126Te
127I
128Xe
129Cs
130Ba
131La
132Ce
133Pr
134Nd
75
122Ag
124In
128I
130Cs
132La
133Ce
134Pr
135Nd
76
123Ag
124Cd
125In
126Sn
127Sb
128Te
129I
130Xe
131Cs
132Ba
133La
134Ce
135Pr
136Nd
77
126In
127Sn
128Sb
130I
132Cs
134La
135Ce
136Pr
137Nd
78
127In
128Sn
129Sb
130Te
131I
132Xe
133Cs
134Ba
135La
136Ce
137Pr
138Nd
79
128In
129Sn
130Sb
132I
133Xe
136La
137Ce
138Pr
139Nd
80
129In
130Sn
131Sb
132Te
133I
134Xe
137La
138Ce
139Pr
140Nd
81
130In
131Sn
132Sb
133Te
134I
135Xe
138La
140Pr
141Nd
82
131In
132Sn
133Sb
134Te
135I
136Xe
137Cs
138Ba
139La
140Ce
141Pr
142Nd
83
132In
133Sn
134Sb
135Te
136I
137Xe
138Cs
139Ba
140La
141Ce
142Pr
143Nd
84
134Sn
135Sb
136Te
137I
138Xe
139Cs
140Ba
141La
142Ce
143Pr
144Nd
85
136Sb
137Te
138I
139Xe
140Cs
141Ba
142La
143Ce
144Pr
145Nd
86
138Te
139I
140Xe
141Cs
142Ba
143La
144Ce
145Pr
146Nd
87
140I
141Xe
142Cs
143Ba
144La
145Ce
146Pr
147Nd
88
141I
142Xe
143Cs
144Ba
145La
146Ce
147Pr
148Nd
89
142I
143Xe
144Cs
145Ba
146La
147Ce
148Pr
149Nd
90
144Xe
145Cs
146Ba
147La
148Ce
149Pr
150Nd
91
145Xe
146Cs
148La
149Ce
150Pr
151Nd
92
150Ce
151Pr
152Nd
93
151Ce
94
154Nd
p
61
62
63
Pm
Sm
Eu
n
137Sm
64
76
137Pm
138Sm
139Eu
Gd
77
138Pm
139Sm
140Eu
65
78
139Pm
140Sm
141Eu
142Gd
Tb
66
79
140Pm
141Sm
142Eu
143Gd
Dy
67
68
69
80
141Pm
142Sm
143Eu
144Gd
Ho
Er
Tm
70
81
142Pm
143Sm
144Eu
145Gd
146Tb
147Dy
Yb
71
82
143Pm
144Sm
145Eu
146Gd
147Tb
148Dy
150Er
151Tm
Lu
72
83
144Pm
145Sm
146Eu
147Gd
148Tb
149Dy
150Ho
151Er
Hf
84
145Pm
146Sm
147Eu
148Gd
149Tb
150Dy
151Ho
152Er
153Tm
154Yb
155Lu
85
146Pm
147Sm
148Eu
149Gd
150Tb
151Dy
152Ho
153Er
154Tm
155Yb
156Lu
157Hf
73
74
86
147Pm
148Sm
149Eu
150Gd
151Tb
152Dy
153Ho
154Er
155Tm
156Yb
158Hf
Ta
W
87
149Sm
151Gd
152Tb
153Dy
154Ho
155Er
156Tm
157Yb
159Hf
88
149Pm
150Sm
151Eu
152Gd
153Tb
154Dy
155Ho
156Er
157Tm
158Yb
160Hf
162W
89
150Pm
151Sm
153Gd
154Tb
155Dy
156Ho
157Er
158Tm
161Hf
163W
90
151Pm
152Sm
153Eu
154Gd
155Tb
156Dy
157Ho
158Er
159Tm
160Yb
161Lu
164W
75
91
152Pm
153Sm
155Gd
157Dy
158Ho
159Er
160Tm
161Yb
162Lu
165W
Re
92
153Pm
154Sm
155Eu
156Gd
157Tb
158Dy
159Ho
160Er
161Tm
162Yb
166W
93
154Pm
155Sm
156Eu
157Gd
159Dy
160Ho
161Er
162Tm
163Yb
164Lu
166Ta
94
156Sm
157Eu
158Gd
159Tb
160Dy
161Ho
162Er
163Tm
164Yb
165Lu
166Hf
167Ta
95
157Sm
158Eu
159Gd
160Tb
161Dy
162Ho
163Er
164Tm
165Yb
166Lu
167Hf
168Ta
170Re
96
159Eu
160Gd
161Tb
162Dy
164Er
165Tm
166Yb
167Lu
168Hf
169Ta
170W
97
160Eu
161Gd
162Tb
163Dy
164Ho
165Er
166Tm
167Yb
168Lu
169Hf
170Ta
171W
172Re
98
162Gd
163Tb
164Dy
165Ho
166Er
167Tm
168Yb
170Hf
171Ta
172W
99
164Tb
165Dy
168Tm
170Lu
171Hf
172Ta
173W
174Re
100
166Dy
167Ho
168Er
169Tm
170Yb
172Hf
173Ta
174W
175Re
101
167Dy
168Ho
169Er
170Tm
171Yb
173Hf
174Ta
175W
176Re
102
169Ho
170Er
171Tm
172Yb
173Lu
174Hf
175Ta
176W
177Re
103
170Ho
171Er
172Tm
173Yb
174Lu
175Hf
176Ta
177W
178Re
104
172Er
173Tm
174Yb
175Lu
176Hf
177Ta
178W
179Re
105
173Er
174Tm
178Ta
179W
180Re
106
175Tm
179Ta
180W
181Re
107
176Tm
177Yb
178Lu
181W
108
178Yb
179Lu
181Ta
182W
183Re
109
180Lu
181Hf
110
183Ta
184W
185Re
111
183Hf
184Ta
112
184Hf
185Ta
186W
187Re
113
185Hf
186Ta
187W
188Re
114
188W
189Re
115
189W
190Re
116
190W
191Re
117
192Re
p
76
Os
77
n
Ir
78
93
169Os
Pt
79
94
170Os
171Ir
Au
80
95
171Os
172Ir
173Pt
Hg
96
172Os
171Ir
174Pt
175Au
97
173Os
174Ir
175Pt
176Au
177Hg
98
174Os
175Ir
176Pt
177Au
178Hg
99
175Os
176Ir
177Pt
178Au
179Hg
81
100
176Os
177Ir
178Pt
179Au
180Hg
Tl
82
101
177Os
178Ir
179Pt
181Hg
Pb
102
178Os
179Ir
180Pt
181Au
182Hg
103
179Os
180Ir
181Pt
182Au
183Hg
184Tl
185Pb
83
104
180Os
181Ir
182Pt
183Au
184Hg
185Tl
186Pb
Bi
105
181Os
182Ir
183Pt
184Au
185Hg
186Tl
187Pb
84
106
182Os
183Ir
184Pt
185Au
186Hg
187Tl
188Pb
189Bi
Po
85
107
183Os
184Ir
185Pt
186Au
187Hg
188Tl
189Pb
190Bi
At
108
184Os
185Ir
186Pt
187Au
188Hg
189Tl
190Pb
191Bi
109
185Os
186Ir
187Pt
188Au
189Hg
190Tl
191Pb
192Bi
193Po
194At
110
186Os
187Ir
188Pt
189Au
190Hg
191Tl
192Pb
193Bi
194Po
195At
86
111
187Os
188Ir
189Pt
190Au
191Hg
192Tl
193Pb
194Bi
195Po
196At
Rn
112
188Os
189Ir
190Pt
191Au
192Hg
193Tl
194Pb
195Bi
196Po
197At
87
113
191Pt
192Au
193Hg
194Tl
195Pb
196Bi
197Po
198At
Fr
114
192Pt
193Au
194Hg
195Tl
196Pb
197Bi
198Po
199At
200Rn
88
115
191Os
194Au
196Tl
197Pb
198Bi
199Po
200At
201Rn
Ra
116
194Pt
196Hg
197Tl
198Pb
199Bi
200Po
201At
202Rn
203Fr
89
117
193Os
194Ir
198Tl
199Pb
200Bi
201Po
202At
203Rn
204Fr
Ac
118
194Os
195Ir
196Pt
199Tl
200Pb
201Bi
202Po
203At
204Rn
205Fr
206Ra
119
195Os
196Ir
197Pt
198Au
199Hg
200Tl
201Pb
202Bi
203Po
204At
205Rn
206Fr
207Ra
90
120
196Os
197Ir
198Pt
199Au
200Hg
201Tl
203Bi
204Po
205At
206Rn
207Fr
208Ra
209Ac
Th
121
198Ir
199Pt
200Au
201Hg
202Tl
204Bi
205Po
206At
207Rn
208Fr
209Ra
210Ac
122
200Pt
201Au
202Hg
203Tl
205Bi
206Po
207At
208Rn
209Fr
210Ra
211Ac
123
201Pt
202Au
203Hg
204Tl
205Pb
206Bi
207Po
208At
209Rn
210Fr
211Ra
212Ac
213Th
124
203Au
204Hg
205Tl
206Pb
207Bi
208Po
209At
210Rn
211Fr
212Ra
213Ac
214Th
125
204Au
205Hg
206Tl
208Bi
209Po
210At
211Rn
212Fr
213Ra
214Ac
215Th
126
206Hg
207Tl
208Pb
209Bi
210Po
211At
212Rn
213Fr
214Ra
215Ac
216Th
127
208Tl
209Pb
211Po
212At
213Rn
214Fr
215Ra
216Ac
217Th
128
209Tl
210Pb
211Bi
212Po
213At
214Rn
215Fr
216Ra
217Ac
218Th
129
210Tl
211Pb
212Bi
213Po
214At
215Rn
216Fr
217Ra
218Ac
219Th
130
212Pb
213Bi
214Po
215At
216Rn
217Fr
218Ra
219Ac
220Th
131
213Pb
214Bi
215Po
216At
217Rn
218Fr
219Ra
220Ac
221Th
132
214Pb
215Bi
216Po
217At
218Rn
219Fr
220Ra
221Ac
222Th
133
217Po
218At
219Rn
220Fr
221Ra
222Ac
223Th
134
218Po
219At
220Rn
221Fr
222Ra
223Ac
224Th
135
221Rn
222Fr
223Ra
224Ac
225Th
136
222Rn
223Fr
224Ra
225Ac
226Th
137
223Rn
224Fr
225Ra
226Ac
227Th
138
224Rn
225Fr
226Ra
227Ac
228Th
139
225Rn
226Fr
227Ra
228Ac
229Th
140
226Rn
227Fr
228Ra
229Ac
230Th
141
228Fr
229Ra
230Ac
231Th
142
229Fr
230Ra
231Ac
232Th
143
232Ac
233Th
144
234Th
145
235Th
146
236Th
p
91
Pa
n
125
216Pa
126
127
128
129
130
131
222Pa
92
132
223Pa
U
93
133
224Pa
Np
94
134
225Pa
226U
Pu
95
135
226Pa
227U
228Np
Am
136
227Pa
228U
229Np
96
137
228Pa
229U
230Np
232Am
Cm
138
229Pa
230U
231Np
232Pu
139
230Pa
231U
232Np
233Pu
234Am
97
98
99
100
140
231Pa
232U
233Np
234Pu
235Am
236Cm
Bk
Cf
Es
Fm
141
232Pa
233U
234Np
235Pu
236Am
237Cm
142
233Pa
234U
235Np
236Pu
237Am
238Cm
239Bk
240Cf
241Es
242Fm
143
234Pa
237Pu
238Am
239Cm
240Bk
241Cf
242Es
243Fm
144
235Pa
236U
237Np
238Pu
239Am
240Cm
241Bk
242Cf
243Es
244Fm
101
145
236Pa
237U
238Np
239Pu
240Am
241Cm
242Bk
243Cf
244Es
245Fm
Md
102
146
237Pa
238U
239Np
240Pu
241Am
242Cm
243Bk
244Cf
245Es
246Fm
No
103
104
147
238Pa
239U
240Np
241Pu
243Cm
244Bk
245Cf
246Es
247Fm
248Md
Lr
Rf
105
148
240U
241Np
242Pu
243Am
244Cm
245Bk
246Cf
247Es
248Fm
249Md
250No
Db
149
243Pu
244Am
245Cm
246Bk
247Cf
248Es
249Fm
250Md
251No
252Lr
253Rf
150
244Pu
245Am
246Cm
247Bk
248Cf
249Es
250Fm
251Md
252No
253Lr
254Rf
255Ha
151
245Pu
246Am
247Cm
249Cf
250Es
251Fm
252Md
253No
254Lr
255Rf
256Ha
152
246Pu
247Am
248Cm
249Bk
250Cf
251Es
252Fm
253Md
254No
255Lr
256Rf
257Ha
153
249Cm
250Bk
251Cf
252Es
253Fm
254Md
255No
256Lr
257Rf
258Ha
154
250Cm
251Bk
252Cf
253Es
254Fm
255Md
256No
257Lr
258Rf
259Ha
155
251Cm
252Bk
253Cf
255Fm
256Md
257No
258Lr
259Rf
260Ha
156
253Bk
254Cf
255Es
256Fm
257Md
258No
259Lr
260Rf
261Ha
157
254Bk
255Cf
256Es
257Fm
258Md
259No
260Lr
261Rf
262Ha
158
256Cf
257Es
258Fm
259Md
260No
261Lr
262Rf
263Ha
159
259Fm
260Md
261No
262Lr
263Rf
264Ha
160
262No
263Lr
264Rf
265Ha
p
106
Sg
107
n
Bh
152
258Sg
108
153
259Sg
260Ns
Hs
109
154
260Sg
261Ns
Mt
110
155
261Sg
262Ns
263Hs
Ds
111
156
262Sg
263Ns
264Hs
265Mt
Uuu
157
263Sg
264Ns
265Hs
266Mt
267Ds
158
264Sg
265Ns
266Hs
267Mt
268Ds
159
265Sg
266Ns
267Hs
268Mt
269Ds
160
266Sg
267Ns
268Hs
269Mt
270Ds
161
269Hs
270Mt
271Ds
272Uuu
162
271Mt
272Ds