from Wikipedia, the free encyclopedia
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
|