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This is part of the nuclide map
Legend
Legend
| colour
 | 
Half-life
 | 
 
| 
Nucl.
 | 
<10 -10 seconds
 | 
 
| Nucl.
 | 
<1 minute
 | 
 
| Nucl.
 | 
1 minute to 1 hour
 | 
 
| Nucl.
 | 
1 hour to 1 day
 | 
 
| Nucl.
 | 
1 day to 60 days
 | 
 
| Nucl.
 | 
60 days to 10 years
 | 
 
 
 | 
| colour
 | 
Half-life
 | 
 
| Nucl.
 | 
10 years to 1,000 years
 | 
 
| Nucl.
 | 
1,000 years to 100,000 years
 | 
 
| Nucl.
 | 
100,000 years to 10 million years
 | 
 
| Nucl.
 | 
10 million to 50 million years
 | 
 
| Nucl.
 | 
primordial nuclide (> 50 million years)
 | 
 
| Nucl.
 | 
stable
 | 
 
 
 | 
table
Ordinal numbers 61 to 80
| 
p →
 | 
61
 | 
62
 | 
63
 | 
64
 | 
65
 | 
66
 | 
67
 | 
68
 | 
69
 | 
70
 | 
71
 | 
72
 | 
73
 | 
74
 | 
75
 | 
76
 | 
77
 | 
78
 | 
79
 | 
80
 | 
| 
 | 
Pm
 | 
Sm
 | 
Eu
 | 
Gd
 | 
Tb
 | 
Dy
 | 
Ho
 | 
He
 | 
Tm
 | 
Yb
 | 
Lu
 | 
Hf
 | 
Ta
 | 
W.
 | 
re
 | 
Os
 | 
Ir
 | 
Pt
 | 
Au
 | 
Ed
 | 
|  n  ↓
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 70
 | 
131 pm
 | 
132 Sm
 | 
| 71
 | 
132 pm
 | 
133 Sm
 | 
| 72
 | 
133 pm
 | 
134 Sm
 | 
135 Eu
 | 
| 73
 | 
134 pm
 | 
135 Sm
 | 
136 Eu
 | 
137 Gd
 | 
| 74
 | 
135 pm
 | 
136 Sm
 | 
137 Eu
 | 
138 Gd
 | 
139 p
 | 
| 75
 | 
136 pm
 | 
137 Sm
 | 
138 Eu
 | 
139 Gd
 | 
140 p
 | 
| 76
 | 
137 pm
 | 
138 Sm
 | 
139 Eu
 | 
140 Gd
 | 
141 p
 | 
142 Dy
 | 
| 77
 | 
138 pm
 | 
139 Sm
 | 
140 Eu
 | 
141 Gd
 | 
142 p
 | 
143 Dy
 | 
| 78
 | 
139 pm
 | 
140 sm
 | 
141 Eu
 | 
142 Gd
 | 
143 p
 | 
144 Dy
 | 
145 Ho
 | 
| 79
 | 
140 pm
 | 
141 Sm
 | 
142 Eu
 | 
143 Gd
 | 
144 p
 | 
145 Dy
 | 
146 Ho
 | 
| 80
 | 
141 pm
 | 
142 Sm
 | 
143 Eu
 | 
144 Gd
 | 
145 p
 | 
146 Dy
 | 
147 Ho
 | 
148 he
 | 
| 81
 | 
142 pm
 | 
143 Sm
 | 
144 Eu
 | 
145 Gd
 | 
146 p
 | 
147 Dy
 | 
148 Ho
 | 
149 he
 | 
| 82
 | 
143 pm
 | 
144 Sm
 | 
145 Eu
 | 
146 Gd
 | 
147 p
 | 
148 Dy
 | 
149 Ho
 | 
150 he
 | 
151 Tm
 | 
| 83
 | 
144 pm
 | 
145 Sm
 | 
146 Eu
 | 
147 Gd
 | 
148 p
 | 
149 Dy
 | 
150 Ho
 | 
151 he
 | 
152 Tm
 | 
153 Yb
 | 
| 84
 | 
145 pm
 | 
146 Sm
 | 
147 Eu
 | 
148 Gd
 | 
149 p
 | 
150 Dy
 | 
151 Ho
 | 
152 he
 | 
153 Tm
 | 
154 Yb
 | 
155 Lu
 | 
| 85
 | 
146 pm
 | 
147 Sm
 | 
148 Eu
 | 
149 Gd
 | 
150 p
 | 
151 Dy
 | 
152 Ho
 | 
153 he
 | 
154 Tm
 | 
155 Yb
 | 
156 Lu
 | 
157 Hf
 | 
| 86
 | 
147 pm
 | 
148 Sm
 | 
149 Eu
 | 
150 Gd
 | 
151 p
 | 
152 Dy
 | 
153 Ho
 | 
154 he
 | 
155 Tm
 | 
156 Yb
 | 
157 Lu
 | 
158 Hf
 | 
159 days
 | 
| 87
 | 
148 pm
 | 
149 Sm
 | 
150 eu
 | 
151 Gd
 | 
152 p
 | 
153 Dy
 | 
154 Ho
 | 
155 he
 | 
156 Tm
 | 
157 Yb
 | 
158 Lu
 | 
159 Hf
 | 
160 days
 | 
| 88
 | 
149 pm
 | 
150 sm
 | 
151 Eu
 | 
152 Gd
 | 
153 p
 | 
154 Dy
 | 
155 Ho
 | 
156 he
 | 
157 Tm
 | 
158 Yb
 | 
159 Lu
 | 
160 Hf
 | 
161 days
 | 
162 W
 | 
| 89
 | 
150 pm
 | 
151 Sm
 | 
152 Eu
 | 
153 Gd
 | 
154 p
 | 
155 Dy
 | 
156 Ho
 | 
157 he
 | 
158 Tm
 | 
159 Yb
 | 
160 Lu
 | 
161 Hf
 | 
162 days
 | 
163 W
 | 
| 90
 | 
151 pm
 | 
152 Sm
 | 
153 Eu
 | 
154 Gd
 | 
155 p
 | 
156 Dy
 | 
157 Ho
 | 
158 he
 | 
159 Tm
 | 
160 yb
 | 
161 Lu
 | 
162 Hf
 | 
163 days
 | 
164 W
 | 
165 Re
 | 
| 91
 | 
152 pm
 | 
153 Sm
 | 
154 Eu
 | 
155 Gd
 | 
156 p
 | 
157 Dy
 | 
158 Ho
 | 
159 he
 | 
160 Tm
 | 
161 Yb
 | 
162 Lu
 | 
163 Hf
 | 
164 days
 | 
165 W
 | 
166 Re
 | 
| 92
 | 
153 pm
 | 
154 Sm
 | 
155 Eu
 | 
156 Gd
 | 
157 p
 | 
158 Dy
 | 
159 Ho
 | 
160 he
 | 
161 Tm
 | 
162 Yb
 | 
163 Lu
 | 
164 Hf
 | 
165 days
 | 
166 W
 | 
167 Re
 | 
168 Os
 | 
| 93
 | 
154 pm
 | 
155 Sm
 | 
156 Eu
 | 
157 Gd
 | 
158 p
 | 
159 Dy
 | 
160 Ho
 | 
161 he
 | 
162 Tm
 | 
163 Yb
 | 
164 Lu
 | 
165 Hf
 | 
166 days
 | 
167 W.
 | 
168 Re
 | 
169 Os
 | 
| 94
 | 
155 pm
 | 
156 Sm
 | 
157 Eu
 | 
158 Gd
 | 
159 p
 | 
160 Dy
 | 
161 Ho
 | 
162 he
 | 
163 Tm
 | 
164 Yb
 | 
165 Lu
 | 
166 Hf
 | 
167 days
 | 
168 W
 | 
169 Re
 | 
170 Os
 | 
171 Ir
 | 
| 95
 | 
156 pm
 | 
157 Sm
 | 
158 Eu
 | 
159 Gd
 | 
160 p
 | 
161 Dy
 | 
162 Ho
 | 
163 he
 | 
164 Tm
 | 
165 Yb
 | 
166 Lu
 | 
167 Hf
 | 
168 days
 | 
169 W
 | 
170 Re
 | 
171 Os
 | 
172 Ir
 | 
173 pt
 | 
| 96
 | 
157 pm
 | 
158 Sm
 | 
159 Eu
 | 
160 Gd
 | 
161 p
 | 
162 Dy
 | 
163 Ho
 | 
164 he
 | 
165 Tm
 | 
166 Yb
 | 
167 Lu
 | 
168 Hf
 | 
169 days
 | 
170 W
 | 
171 Re
 | 
172 Os
 | 
173 Ir
 | 
174 pt
 | 
175 Au
 | 
| 97
 | 
158 pm
 | 
159 Sm
 | 
160 eu
 | 
161 Gd
 | 
162 p
 | 
163 Dy
 | 
164 Ho
 | 
165 he
 | 
166 Tm
 | 
167 Yb
 | 
168 Lu
 | 
169 Hf
 | 
170 days
 | 
171 W
 | 
172 Re
 | 
173 Os
 | 
174 Ir
 | 
175 pt
 | 
176 Au
 | 
177 ed
 | 
| 98
 | 
159 pm
 | 
160 sm
 | 
161 Eu
 | 
162 Gd
 | 
163 p
 | 
164 Dy
 | 
165 Ho
 | 
166 he
 | 
167 Tm
 | 
168 Yb
 | 
169 Lu
 | 
170 Hf
 | 
171 days
 | 
172 W
 | 
173 Re
 | 
174 Os
 | 
175 Ir
 | 
176 pt
 | 
177 Au
 | 
178 ed
 | 
| 99
 | 
 | 
161 Sm
 | 
162 Eu
 | 
163 Gd
 | 
164 p
 | 
165 Dy
 | 
166 Ho
 | 
167 he
 | 
168 Tm
 | 
169 Yb
 | 
170 Lu
 | 
171 Hf
 | 
172 days
 | 
173 W
 | 
174 Re
 | 
175 Os
 | 
176 Ir
 | 
177 Pt
 | 
178 Au
 | 
179 ed
 | 
| 100
 | 
 | 
162 Sm
 | 
163 Eu
 | 
164 Gd
 | 
165 p
 | 
166 Dy
 | 
167 Ho
 | 
168 he
 | 
169 Tm
 | 
170 yb
 | 
171 Lu
 | 
172 Hf
 | 
173 days
 | 
174 W
 | 
175 Re
 | 
176 Os
 | 
177 Ir
 | 
178 pt
 | 
179 Au
 | 
180 ed
 | 
| 101
 | 
 | 
164 Eu
 | 
165 Gd
 | 
166 p
 | 
167 Dy
 | 
168 Ho
 | 
169 he
 | 
170 Tm
 | 
171 Yb
 | 
172 Lu
 | 
173 Hf
 | 
174 days
 | 
175 W
 | 
176 Re
 | 
177 Os
 | 
178 Ir
 | 
179 pt
 | 
180 Au
 | 
181 ed
 | 
| 102
 | 
 | 
165 Eu
 | 
166 Gd
 | 
167 p
 | 
168 Dy
 | 
169 Ho
 | 
170 he
 | 
171 Tm
 | 
172 Yb
 | 
173 Lu
 | 
174 Hf
 | 
175 days
 | 
176 W
 | 
177 Re
 | 
178 Os
 | 
179 Ir
 | 
180 pt
 | 
181 Au
 | 
182 ed
 | 
| 103
 | 
 | 
167 Gd
 | 
168 p
 | 
169 Dy
 | 
170 Ho
 | 
171 he
 | 
172 Tm
 | 
173 Yb
 | 
174 Lu
 | 
175 Hf
 | 
176 days
 | 
177 W
 | 
178 Re
 | 
179 Os
 | 
180 Ir
 | 
181 Pt
 | 
182 Au
 | 
183 ed
 | 
| 104
 | 
 | 
169 p
 | 
170 Dy
 | 
171 Ho
 | 
172 he
 | 
173 Tm
 | 
174 Yb
 | 
175 Lu
 | 
176 Hf
 | 
177 days
 | 
178 W
 | 
179 Re
 | 
180 Os
 | 
181 Ir
 | 
182 Pt
 | 
183 Au
 | 
184 ed
 | 
| 105
 | 
 | 
171 Dy
 | 
172 Ho
 | 
173 he
 | 
174 Tm
 | 
175 Yb
 | 
176 Lu
 | 
177 Hf
 | 
178 days
 | 
179 W
 | 
180 Re
 | 
181 Os
 | 
182 Ir
 | 
183 pt
 | 
184 Au
 | 
185 ed
 | 
| 106
 | 
 | 
172 Dy
 | 
173 Ho
 | 
174 he
 | 
175 Tm
 | 
176 Yb
 | 
177 Lu
 | 
178 Hf
 | 
179 days
 | 
180 W
 | 
181 Re
 | 
182 Os
 | 
183 Ir
 | 
184 pt
 | 
185 Au
 | 
186 ed
 | 
| 107
 | 
 | 
174 Ho
 | 
175 he
 | 
176 Tm
 | 
177 Yb
 | 
178 Lu
 | 
179 Hf
 | 
180 days
 | 
181 W
 | 
182 Re
 | 
183 Os
 | 
184 Ir
 | 
185 pt
 | 
186 Au
 | 
187 ed
 | 
| 108
 | 
 | 
175 Ho
 | 
176 he
 | 
177 Tm
 | 
178 Yb
 | 
179 Lu
 | 
180 Hf
 | 
181 Ta
 | 
182 W
 | 
183 Re
 | 
184 Os
 | 
185 Ir
 | 
186 pt
 | 
187 Au
 | 
188 ed
 | 
| 109
 | 
 | 
177 he
 | 
178 Tm
 | 
179 Yb
 | 
180 Lu
 | 
181 Hf
 | 
182 days
 | 
183 W
 | 
184 Re
 | 
185 Os
 | 
186 Ir
 | 
187 pt
 | 
188 Au
 | 
189 ed
 | 
| 110
 | 
 | 
179 Tm
 | 
180 yb
 | 
181 Lu
 | 
182 Hf
 | 
183 days
 | 
184 W
 | 
185 Re
 | 
186 Os
 | 
187 Ir
 | 
188 Pt
 | 
189 Au
 | 
190 ed
 | 
| 111
 | 
 | 
181 Yb
 | 
182 Lu
 | 
183 Hf
 | 
184 days
 | 
185 W
 | 
186 Re
 | 
187 Os
 | 
188 Ir
 | 
189 Pt
 | 
190 Au
 | 
191 ed
 | 
| 112
 | 
 | 
182 Yb
 | 
183 Lu
 | 
184 Hf
 | 
185 days
 | 
186 W
 | 
187 Re
 | 
188 Os
 | 
189 Ir
 | 
190 pt
 | 
191 Au
 | 
192 ed
 | 
| 113
 | 
 | 
184 Lu
 | 
185 Hf
 | 
186 days
 | 
187 W
 | 
188 Re
 | 
189 Os
 | 
190 Ir
 | 
191 pt
 | 
192 Au
 | 
193 ed
 | 
| 114
 | 
 | 
185 Lu
 | 
186 Hf
 | 
187 days
 | 
188 W
 | 
189 Re
 | 
190 Os
 | 
191 Ir
 | 
192 pt
 | 
193 Au
 | 
194 ed
 | 
| 115
 | 
 | 
187 Hf
 | 
188 days
 | 
189 W
 | 
190 Re
 | 
191 Os
 | 
192 Ir
 | 
193 pt
 | 
194 Au
 | 
195 ed
 | 
| 116
 | 
 | 
188 Hf
 | 
189 days
 | 
190 W
 | 
191 Re
 | 
192 Os
 | 
193 Ir
 | 
194 pt
 | 
195 Au
 | 
196 ed
 | 
| 117
 | 
 | 
190 days
 | 
191 W.
 | 
192 Re
 | 
193 Os
 | 
194 Ir
 | 
195 pt
 | 
196 Au
 | 
197 ed
 | 
| 118
 | 
 | 
192 W
 | 
193 Re
 | 
194 Os
 | 
195 Ir
 | 
196 pt
 | 
197 Au
 | 
198 ed
 | 
| 119
 | 
 | 
194 Re
 | 
195 Os
 | 
196 Ir
 | 
197 pt
 | 
198 Au
 | 
199 ed
 | 
| 120
 | 
 | 
196 Os
 | 
197 Ir
 | 
198 pt
 | 
199 Au
 | 
200 Hg
 | 
| 121
 | 
 | 
197 Os
 | 
198 Ir
 | 
199 pt
 | 
200 Au
 | 
201 ed
 | 
| 122
 | 
 | 
199 Ir
 | 
200 pt
 | 
201 Au
 | 
202 ed
 | 
| 123
 | 
 | 
201 pt
 | 
202 Au
 | 
203 ed
 | 
| 124
 | 
 | 
202 Pt
 | 
203 Au
 | 
204 ed
 | 
| 125
 | 
 | 
203 pt
 | 
204 Au
 | 
205 ed
 | 
| 126
 | 
 | 
204 pt
 | 
205 Au
 | 
206 ed
 | 
| 127
 | 
 | 
207 ed
 | 
| 128
 | 
 | 
208 ed
 | 
| 129
 | 
 | 
209 ed
 | 
| 130
 | 
 | 
210 Hg
 |