Californium radioactive isotope number 1: 237Cf |
| Neutrons: | 139; |
| Jn: | Unknown; |
| Decay: | SF ~ 10.00 %
α ?; |
| t1/2: | 2.1s ; |
Californium radioactive isotope number 2: 238Cf |
| Neutrons: | 140; |
| Jn: | 0+; |
| Decay: | SF ~ 100.00 %; |
| t1/2: | 0.021s ≈ 21.00 ms; |
Californium radioactive isotope number 3: 239Cf |
| Neutrons: | 141; |
| Jn: | Unknown; |
| Decay: | α
ε; |
| t1/2: | 39s ; |
Californium radioactive isotope number 4: 240Cf |
| Neutrons: | 142; |
| Jn: | 0+; |
| Decay: | α ~ 98.00 %
SF ~ 2.00 %
ε; |
| t1/2: | 57.6s ; |
Californium radioactive isotope number 5: 241Cf |
| Neutrons: | 143; |
| Jn: | 7/2-; |
| Decay: | ε ~ 75.00 %
α ~ 25.00 %; |
| t1/2: | 226.8s ≈ 3.78 m; |
Californium radioactive isotope number 6: 242Cf |
| Neutrons: | 144; |
| Jn: | 0+; |
| Decay: | α : 80.00 %
ε : 20.00 %
SF ≤ 0.01 %; |
| t1/2: | 222s ≈ 3.70 m; |
Californium radioactive isotope number 7: 243Cf |
| Neutrons: | 145; |
| Jn: | 1/2+; |
| Decay: | ε ~ 86.00 %
α ~ 14.00 %; |
| t1/2: | 642s ≈ 10.70 m; |
Californium radioactive isotope number 8: 244Cf |
| Neutrons: | 146; |
| Jn: | 0+; |
| Decay: | α ≤ 100.00 %; |
| t1/2: | 1164s ≈ 19.40 m; |
Californium radioactive isotope number 9: 245Cf |
| Neutrons: | 147; |
| Jn: | 1/2+,5/2+; |
| Decay: | ε : 64.00 %
α : 36.00 %; |
| t1/2: | 2700s ≈ 45.00 m; |
Californium radioactive isotope number 10: 246Cf |
| Neutrons: | 148; |
| Jn: | 0+; |
| Decay: | α : 100.00 %
ε < 4.0E-3 %
SF : 2.5E-4 %; |
| t1/2: | 128520s ≈ 35.70 h; |
Californium radioactive isotope number 11: 247Cf |
| Neutrons: | 149; |
| Jn: | 7/2+; |
| Decay: | ε : 99.97 %
α : 0.04 %; |
| t1/2: | 11196s ≈ 3.11 h; |
Californium radioactive isotope number 12: 248Cf |
| Neutrons: | 150; |
| Jn: | 0+; |
| Decay: | α : 100.00 %
SF : 2.9E-3 %; |
| t1/2: | 28814400s ≈ 333.50 d; |
Californium radioactive isotope number 13: 249Cf |
| Neutrons: | 151; |
| Jn: | 9/2-; |
| Decay: | α : 100.00 %
SF : 5.0E-7 %; |
| t1/2: | 11069140000s ≈ 351.00 y; |
Californium radioactive isotope number 14: 250Cf |
| Neutrons: | 152; |
| Jn: | 0+; |
| Decay: | α : 99.92 %
SF : 0.08 %; |
| t1/2: | 412490900s ≈ 13.08 y; |
Californium radioactive isotope number 15: 251Cf |
| Neutrons: | 153; |
| Jn: | 1/2+; |
| Decay: | α : 100.00 %
SF; |
| t1/2: | 28319330000s ≈ 898.00 y; |
Californium radioactive isotope number 16: 252Cf |
| Neutrons: | 154; |
| Jn: | 0+; |
| Decay: | α : 96.91 %
SF : 3.09 %; |
| t1/2: | 83412720s ≈ 2.65 y; |
Californium radioactive isotope number 17: 253Cf |
| Neutrons: | 155; |
| Jn: | 7/2+; |
| Decay: | β - : 99.69 %
α : 0.31 %; |
| t1/2: | 1538784s ≈ 17.81 d; |
Californium radioactive isotope number 18: 254Cf |
| Neutrons: | 156; |
| Jn: | 0+; |
| Decay: | SF : 99.69 %
α : 0.31 %; |
| t1/2: | 5227200s ≈ 60.50 d; |
Californium radioactive isotope number 19: 255Cf |
| Neutrons: | 157; |
| Jn: | 7/2+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 5100s ≈ 1.42 h; |
Californium radioactive isotope number 20: 256Cf |
| Neutrons: | 158; |
| Jn: | 0+; |
| Decay: | SF : 100.00 %
β - < 1.00 %
α ~ 1.0E-6 %; |
| t1/2: | 738s ≈ 12.30 m; |
