Isotopes of Europium (Z=63)
Click on an isotope to get more information about its decay
|
Isotope
|
Half-life
|
Spin
Parity
|
Decay Mode(s) or
Abundance |
|---|
| 131Eu
| 26 ms | (3/2+,5/2+)
|
%P=100
|
|---|
| 132Eu
| |
|
%EC+%B+=100
|
|---|
| 133Eu
| |
|
|
|---|
| 134Eu
| 0.5 s |
|
%EC+%B+=100, %ECP > 0
|
|---|
| 135Eu
| 1.5 s |
|
%EC+%B+=100, %ECP=?
|
|---|
| 136Eu
| 3.3 s | (7+)
|
%EC+%B+=100, %ECP=0.09
|
|---|
| 136m1Eu
| 3.7 s | (3+)
|
%EC+%B+=100, %ECP=0.09
|
|---|
| 137Eu
| 11 s | (11/2-)
|
%EC+%B+=100
|
|---|
| 138Eu
| 12.1 s | (6-)
|
%EC+%B+=100
|
|---|
| 139Eu
| 17.9 s | (11/2)-
|
%EC+%B+=100
|
|---|
| 140Eu
| 1.51 s | 1+
|
%EC+%B+=100
|
|---|
| 140m1Eu
| 125 ms | (5-)
|
%IT=100 , %EC+%B+ < 1
|
|---|
| 141Eu
| 40.7 s | 5/2+
|
%EC+%B+=100
|
|---|
| 141m1Eu
| 2.7 s | 11/2-
|
%EC+%B+=13 +4-2 , %IT=87 +2-4
|
|---|
| 142Eu
| 2.34 s | 1+
|
%EC+%B+=100
|
|---|
| 142m1Eu
| 1.22 m | 8-
|
%EC+%B+=100
|
|---|
| 143Eu
| 2.63 m | 5/2+
|
%EC+%B+=100
|
|---|
| 144Eu
| 10.2 s | 1+
|
%EC+%B+=100
|
|---|
| 145Eu
| 5.93 d | 5/2+
|
%EC+%B+=100
|
|---|
| 146Eu
| 4.61 d | 4-
|
%EC+%B+=100
|
|---|
| 147Eu
| 24.1 d | 5/2+
|
%EC+B+=100, %A=0.0022 6
|
|---|
| 148Eu
| 54.5 d | 5-
|
%EC+%B+=100, %A=9.4E-7 28
|
|---|
| 149Eu
| 93.1 d | 5/2+
|
%EC=100
|
|---|
| 150Eu
| 36.9 y | 5(-)
|
%EC+%B+=100
|
|---|
| 150m1Eu
| 12.8 h | 0-
|
%EC+%B+=11 2, %B-=89 2 , %IT < 5E-8
|
|---|
| 151Eu
| stable | 5/2+
|
%Abundance=47.8 15
|
|---|
| 152Eu
| 13.537 y | 3-
|
%EC=72.1 3 , %B-=27.9 3
|
|---|
| 152m1Eu
| 9.3116 h | 0-
|
%EC+%B+=28 4 , %B-=72 4
|
|---|
| 152m2Eu
| 96 m | 8-
|
%IT=100
|
|---|
| 153Eu
| stable | 5/2+
|
%Abundance=52.2 15
|
|---|
| 154Eu
| 8.593 y | 3-
|
%B-=99.98 1, %EC+%B+=0.02 1
|
|---|
| 154m1Eu
| 46.3 m | (8-)
|
%IT=100
|
|---|
| 155Eu
| 4.7611 y | 5/2+
|
%B-=100
|
|---|
| 156Eu
| 15.19 d | 0+
|
%B-=100
|
|---|
| 157Eu
| 15.18 h | 5/2+
|
%B-=100
|
|---|
| 158Eu
| 45.9 m | (1-)
|
%B-=100
|
|---|
| 159Eu
| 18.1 m | 5/2+
|
%B-=100
|
|---|
| 160Eu
| 38 s | 1(-)
|
%B-=100
|
|---|
| 161Eu
| 26 s |
|
%B-=100
|
|---|
| 162Eu
| 10.6 s |
|
%B-=100
|
|---|
| 163Eu
| |
|
|
|---|
| 164Eu
| |
|
|
|---|
| 165Eu
| |
|
|
|---|
| 166Eu
| |
|
|
|---|
| 167Eu
| |
|
|
|---|
Isotope Explorer Nuclear Structure and Decay Data
8th Edition of the Table of Isotopes
Isotopes Project Home Page
Lawrence Berkeley National Laboratory