Isotopes of Lanthanum (Z=57)
Click on an isotope to get more information about its decay
Isotope
|
Half-life
|
Spin
Parity
|
Decay Mode(s) or
Abundance |
117La
| |
|
|
118La
| |
|
|
119La
| |
|
|
120La
| 2.8 s |
|
%EC+%B+=100
|
121La
| 5.3 s |
|
%EC+%B+=100, %ECP=?
|
122La
| 8.7 s |
|
%EC+%B+=100, %ECP=?
|
123La
| 17 s |
|
%EC+%B+=100
|
124La
| 29 s |
|
%EC+%B+=100
|
124m1La
| 1 s |
|
%EC+%B+=100
|
125La
| 76 s | (11/2-)
|
%EC+%B+=100
|
126La
| 54 s |
|
%EC+%B+=100
|
127La
| 5.1 m | (11/2-)
|
%EC+%B+=100
|
127m1La
| 3.7 m | (3/2+)
|
%EC+%B+=100, %IT=?
|
128La
| 5.0 m | (5+)
|
%EC+%B+=100
|
128m1La
| 560 ms | (1+,2+)
|
%EC+%B+=100
|
129La
| 11.6 m | 3/2+
|
%EC+%B+=100
|
129m1La
| 0.56 s | 11/2-
|
%IT=100
|
130La
| 8.7 m | 3(+)
|
%EC+%B+=100
|
131La
| 59 m | 3/2+
|
%EC+%B+=100
|
132La
| 4.8 h | 2-
|
%EC+%B+=100
|
132m1La
| 24.3 m | 6-
|
%IT=76, %EC+%B+=24
|
133La
| 3.912 h | 5/2+
|
%EC+%B+=100
|
134La
| 6.45 m | 1+
|
%EC+%B+=100
|
135La
| 19.5 h | 5/2+
|
%EC+%B+=100
|
136La
| 9.87 m | 1+
|
%EC+%B+=100
|
136m1La
| 114 ms |
|
%IT=100
|
137La
| 6e4 y | 7/2+
|
%EC=100
|
138La
| 1.05e+11 y | 5+
|
%Abundance=0.0902 2, %B-=33.6 5 , %EC+%B+=66.4 5
|
139La
| stable | 7/2+
|
%Abundance=99.9098 2
|
140La
| 1.6781 d | 3-
|
%B-=100
|
141La
| 3.92 h | (7/2+)
|
%B-=100
|
142La
| 91.1 m | 2-
|
%B-=100
|
143La
| 14.2 m | (7/2)+
|
%B-=100
|
144La
| 40.8 s | (3-)
|
%B-=100
|
145La
| 24.8 s | (5/2+)
|
%B-=100
|
146La
| 6.27 s | 2-
|
%B-=100
|
146m1La
| 10.0 s | (6-)
|
%B-=100
|
147La
| 4.015 s | (5/2+)
|
%B-=100, %B-N=0.035 6
|
148La
| 1.05 s | (2-)
|
%B-=100 , %B-N=0.11 1
|
149La
| 1.05 s |
|
%B-=100, %B-N=1.43 28
|
150La
| 0.86 s |
|
%B-=100, %B-N=2.7 3
|
151La
| |
|
|
152La
| |
|
|
153La
| |
|
|
154La
| |
|
|
155La
| |
|
|
Isotope Explorer Nuclear Structure and Decay Data
8th Edition of the Table of Isotopes
Isotopes Project Home Page
Lawrence Berkeley National Laboratory