Isotopes of Californium (Z=98)
Click on an isotope to get more information about its decay
|
Isotope
|
Half-life
|
Spin
Parity
|
Decay Mode(s) or
Abundance |
|---|
| 237Cf
| 2.1 s |
|
%SF ~ 10 sys
|
|---|
| 238Cf
| 21 ms | 0+
|
%SF ~ 100 sys
|
|---|
| 239Cf
| 39 s |
|
%A=?
|
|---|
| 240Cf
| 1.06 m | 0+
|
%A=87 12, %SF ~ 13
|
|---|
| 241Cf
| 3.78 m |
|
%EC ~ 75, %A ~ 25
|
|---|
| 242Cf
| 3.49 m | 0+
|
%A=65 10, %SF < 1.4E-2
|
|---|
| 243Cf
| 10.7 m | (1/2+)
|
%EC ~ 86, %A ~ 14
|
|---|
| 244Cf
| 19.4 m | 0+
|
%A=70 20
|
|---|
| 245Cf
| 45.0 m | (5/2+)
|
%EC=64 3, %A=36 3
|
|---|
| 246Cf
| 35.7 h | 0+
|
%A=99.9996 2, %SF=2.3E-4 8, %EC<5E-4
|
|---|
| 246m1Cf
| 45 ns |
|
|
|---|
| 247Cf
| 3.11 h | (7/2+)
|
%EC=99.965 5, %A=0.035 5
|
|---|
| 248Cf
| 333.5 d | 0+
|
%A=99.9971 3, %SF=0.0029 3
|
|---|
| 249Cf
| 351 y | 9/2-
|
%A=100, %SF=4.4E-7 5
|
|---|
| 250Cf
| 13.08 y | 0+
|
%A=99.923 3, %SF=0.077 5
|
|---|
| 251Cf
| 898 y | 1/2+
|
%A=100
|
|---|
| 252Cf
| 2.645 y | 0+
|
%A=96.908 8, %SF=3.092 8
|
|---|
| 253Cf
| 17.81 d | (7/2+)
|
%B-=99.69 4, %A=0.31 4
|
|---|
| 254Cf
| 60.5 d | 0+
|
%SF=99.69 2, %A=0.31 2
|
|---|
| 255Cf
| 85 m | (9/2+)
|
%B-=100
|
|---|
| 256Cf
| 12.3 m | 0+
|
%SF=100, %B-<1 sys %A ~ 1E-6 sys
|
|---|
Isotope Explorer Nuclear Structure and Decay Data
8th Edition of the Table of Isotopes
Isotopes Project Home Page
Lawrence Berkeley National Laboratory