Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 70
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
135
In
49
0
134.94933
+9/2
92 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
137
Sn
50
0
136.94599
-7/2
190 Millisekunden (ms)
β
-
42%
nβ
-
58%
139
Sb
51
0
138.94598
+7/2
150 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
141
Te
52
0
140.94465
-5/2
100 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
143
I
53
0
142.94456
+7/2
150 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
145
Xe
54
0
144.94407
-3/2
188 Millisekunden (ms)
β
-
95%
nβ
-
5%
147
Cs
55
0
146.944155
+3/2
235 Millisekunden (ms)
β
-
57%
nβ
-
43%
149
Ba
56
0
148.94258
-3/2
344 Millisekunden (ms)
β
-
99.57%
nβ
-
0.43%
151
La
57
0
150.941721
+5/2
300 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
153
Ce
58
0
152.94058
-3/2
500 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
155
Pr
59
0
154.94012
-5/2
1 Sekunden
β
-
>0%
nβ
-
>0%
157
Nd
60
0
156.93903
-5/2
2 Sekunden
β
-
>0%
nβ
-
>0%
159
Pm
61
0
158.93897
-5/2
1.47 Sekunden
β
-
100%
161
Sm
62
0
160.938831
-7/2
4.8 Sekunden
β
-
100%
163
Eu
63
0
162.939209
+5/2
7.8 Sekunden
β
-
100%
165
Gd
64
0
164.93938
-1/2
10.3 Sekunden
β
-
100%
167
Tb
65
0
166.94005
+3/2
19.4 Sekunden
β
-
100%
169
Dy
66
0
168.940308
-5/2
39 Sekunden
β
-
100%
171
Ho
67
0
170.941465
-7/2
53 Sekunden
β
-
100%
173
Er
68
0
172.9424
-7/2
1 Minuten 24 Sekunden
β
-
100%
175
Tm
69
0
174.943837
+1/2
15 Minuten 12 Sekunden
β
-
100%
177
Yb
70
0
176.945261
+9/2
1 Stunden 54 Minuten 39.6 Sekunden
β
-
100%
177m
Yb
70
0.3315
176.945617
-1/2
6.41 Sekunden
it
100%
179
Lu
71
0
178.947327
+7/2
4 Stunden 35 Minuten 24 Sekunden
β
-
100%
179m
Lu
71
0.5924
178.947963
+1/2
3.1 Mikrosekunden (μs)
it
100%
181
Hf
72
0
180.949102
-1/2
42 Tage 9 Stunden
β
-
100%
181m
Hf
72
0.5953
180.949741
+9/2
80 Mikrosekunden (μs)
it
100%
181m
Hf
72
1.04
180.94874
+17/2
100 Mikrosekunden (μs)
it
100%
181m
Hf
72
1.7419
180.950972
-27/2
1.5 Millisekunden (ms)
it
100%
183
Ta
73
0
182.951373
+7/2
5 Tage 2 Stunden 23 Minuten
β
-
100%
183m
Ta
73
0.0732
182.951451
-9/2
107 Nanosekunden (ns)
it
100%
185
W
74
0
184.95342
-3/2
75 Tage 2 Stunden
β
-
100%
185m
W
74
0.1974
184.953632
+11/2
1 Minuten 40.2 Sekunden
it
100%
187
Re
75
0
186.955753
+5/2
62.6
41.2 Milliarden Jahre
β
-
100%
α
>0%
189
Os
76
0
188.958147
-3/2
16.21
stabil
189m
Os
76
0.0308
188.958181
-9/2
5 Stunden 48 Minuten 36 Sekunden
it
100%
191
Ir
77
0
190.960594
+3/2
37.3
stabil
191m
Ir
77
0.171
190.960778
-11/2
4.899 Sekunden
it
100%
191m
Ir
77
2.0467
190.962792
unbekannt
5.5 Sekunden
it
100%
193
Pt
78
0
192.962987
-1/2
50 Jahre
ε
100%
193m
Pt
78
0.1498
192.963148
+13/2
4 Tage 7 Stunden 55 Minuten
it
100%
195
Au
79
0
194.965035
+3/2
186 Tage 2 Stunden
ε
100%
195m
Au
79
0.3186
194.965377
-11/2
30.5 Sekunden
it
100%
197
Hg
80
0
196.967213
-1/2
2 Tage 16 Stunden 8 Minuten
ε
100%
197m
Hg
80
0.2989
196.967534
+13/2
23 Stunden 48 Minuten
it
91.4%
ε
8.6%
199
Tl
81
0
198.969877
+1/2
7 Stunden 25 Minuten 12 Sekunden
ε
100%
199m
Tl
81
0.7489
198.970681
-9/2
28.4 Millisekunden (ms)
it
100%
201
Pb
82
0
200.972885
-5/2
9 Stunden 19 Minuten 48 Sekunden
ε
100%
201m
Pb
82
0.6291
200.973561
+13/2
1 Minuten 800 Millisekunden (ms)
it
100%
ε
>0%
201m
Pb
82
2.7185
200.975804
-29/2
508 Nanosekunden (ns)
it
100%
203
Bi
83
0
202.976876
-9/2
11 Stunden 45 Minuten 36 Sekunden
ε
100%
203m
Bi
83
1.0981
202.978055
+1/2
305 Millisekunden (ms)
it
100%
203m
Bi
83
2.0415
202.979068
+25/2
194 Nanosekunden (ns)
it
100%
205
Po
84
0
204.981203
-5/2
1 Stunden 44 Minuten 24 Sekunden
ε
99.96%
α
0.04%
205m
Po
84
0.1432
204.981357
-1/2
310 Nanosekunden (ns)
it
100%
205m
Po
84
0.8803
204.982148
+13/2
645 Mikrosekunden (μs)
it
100%
205m
Po
84
1.4612
204.982772
-19/2
57.4 Millisekunden (ms)
it
100%
205m
Po
84
3.0872
204.984518
-29/2
115 Nanosekunden (ns)
it
100%
207
At
85
0
206.985783
-9/2
1 Stunden 48 Minuten
ε
91.4%
α
8.6%
209
Rn
86
0
208.990415
-5/2
28 Minuten 30 Sekunden
ε
83%
α
17%
209m
Rn
86
1.174
208.991675
+13/2
13.4 Mikrosekunden (μs)
it
100%
209m
Rn
86
3.6368
208.994319
+35/2
3 Mikrosekunden (μs)
it
100%
211
Fr
87
0
210.995537
-9/2
3 Minuten 6 Sekunden
α
85%
ε
15%
213
Ra
88
0
213.000383
-1/2
2 Minuten 43.8 Sekunden
α
80%
ε
20%
213m
Ra
88
1.77
213.002283
-15/2
2.2 Millisekunden (ms)
it
99%
α
1%
215
Ac
89
0
215.006454
-9/2
170 Millisekunden (ms)
α
99.91%
ε
0.09%
217
Th
90
0
217.013114
+9/2
241 Mikrosekunden (μs)
α
100%
217m
Th
90
0.6738
217.013838
-15/2
141 Nanosekunden (ns)
it
100%
219
Pa
91
0
219.019883
-9/2
53 Nanosekunden (ns)
α
100%
221
U
92
0
221.0264
+9/2
700 Nanosekunden (ns)
α
100%