Protactinium radioactive isotope number 1: 212Pa |
| Neutrons: | 121; |
| Jn: | Unknown; |
| Decay: | α ~ 100.00 %; |
| t1/2: | 0.0051s ≈ 5.10 ms; |
Protactinium radioactive isotope number 2: 213Pa |
| Neutrons: | 122; |
| Jn: | 9/2-; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.0053s ≈ 5.30 ms; |
Protactinium radioactive isotope number 3: 214Pa |
| Neutrons: | 123; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.017s ≈ 17.00 ms; |
Protactinium radioactive isotope number 4: 215Pa |
| Neutrons: | 124; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.014s ≈ 14.00 ms; |
Protactinium radioactive isotope number 5: 216Pa |
| Neutrons: | 125; |
| Jn: | Unknown; |
| Decay: | α ~ 98.00 %
ε ~ 2.00 %; |
| t1/2: | 0.105s ; |
Protactinium radioactive isotope number 6: 217Pa |
| Neutrons: | 126; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.0036s ≈ 3.60 ms; |
Protactinium radioactive isotope number 7: 217Pa |
| Neutrons: | 126; |
| Jn: | Unknown; |
| Decay: | α : 73.00 %
IT : 27.00 %; |
| t1/2: | 0.0012s ≈ 1.20 ms; |
Protactinium radioactive isotope number 8: 218Pa |
| Neutrons: | 127; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.000113s ≈ 0.11 ms; |
Protactinium radioactive isotope number 9: 219Pa |
| Neutrons: | 128; |
| Jn: | 9/2-; |
| Decay: | α : 100.00 %; |
| t1/2: | 5.3E-08s ≈ 53.00 ns; |
Protactinium radioactive isotope number 10: 220Pa |
| Neutrons: | 129; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %
ε : 3.0E-7 %; |
| t1/2: | 7.8E-07s ≈ 0.78 µs; |
Protactinium radioactive isotope number 11: 221Pa |
| Neutrons: | 130; |
| Jn: | 9/2-; |
| Decay: | α : 100.00 %; |
| t1/2: | 4.9E-06s ≈ 4.90 µs; |
Protactinium radioactive isotope number 12: 222Pa |
| Neutrons: | 131; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.0033s ≈ 3.30 ms; |
Protactinium radioactive isotope number 13: 223Pa |
| Neutrons: | 132; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.0051s ≈ 5.10 ms; |
Protactinium radioactive isotope number 14: 224Pa |
| Neutrons: | 133; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.85s ; |
Protactinium radioactive isotope number 15: 225Pa |
| Neutrons: | 134; |
| Jn: | Unknown; |
| Decay: | α : 100.00 %; |
| t1/2: | 1.7s ; |
Protactinium radioactive isotope number 16: 226Pa |
| Neutrons: | 135; |
| Jn: | Unknown; |
| Decay: | α : 74.00 %
ε : 26.00 %; |
| t1/2: | 108s ; |
Protactinium radioactive isotope number 17: 227Pa |
| Neutrons: | 136; |
| Jn: | 5/2-; |
| Decay: | α : 85.00 %
ε : 15.00 %; |
| t1/2: | 2298s ≈ 38.30 m; |
Protactinium radioactive isotope number 18: 228Pa |
| Neutrons: | 137; |
| Jn: | 3+; |
| Decay: | ε : 98.00 %
α : 2.00 %; |
| t1/2: | 79200s ≈ 22.00 h; |
Protactinium radioactive isotope number 19: 229Pa |
| Neutrons: | 138; |
| Jn: | 5/2+; |
| Decay: | ε : 99.52 %
α : 0.48 %; |
| t1/2: | 129600s ≈ 36.00 h; |
Protactinium radioactive isotope number 20: 230Pa |
| Neutrons: | 139; |
| Jn: | 2-; |
| Decay: | ε : 91.60 %
β - : 8.40 %
α : 3.2E-3 %; |
| t1/2: | 1503360s ≈ 17.40 d; |
Protactinium radioactive isotope number 21: 231Pa |
| Neutrons: | 140; |
| Jn: | 3/2-; |
| Decay: | α : 100.00 %
SF ≤ 3E-10 %; |
| t1/2: | 1.033119E+12s ≈ 3.275999e+4 y; |
Protactinium radioactive isotope number 22: 232Pa |
| Neutrons: | 141; |
| Jn: | 2-; |
| Decay: | β - : 100.00 %
ε : 3.0E-3 %; |
| t1/2: | 114048s ≈ 31.68 h; |
Protactinium radioactive isotope number 23: 233Pa |
| Neutrons: | 142; |
| Jn: | 3/2-; |
| Decay: | β - : 100.00 %; |
| t1/2: | 2330640s ≈ 26.98 d; |
Protactinium radioactive isotope number 24: 234Pa |
| Neutrons: | 143; |
| Jn: | 4+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 24120s ≈ 6.70 h; |
Protactinium radioactive isotope number 25: 234Pa |
| Neutrons: | 143; |
| Jn: | 0-; |
| Decay: | β - : 99.84 %
IT : 0.16 %; |
| t1/2: | 70.2s ; |
Protactinium radioactive isotope number 26: 235Pa |
| Neutrons: | 144; |
| Jn: | 3/2-; |
| Decay: | β - : 100.00 %; |
| t1/2: | 1466.4s ≈ 24.44 m; |
Protactinium radioactive isotope number 27: 236Pa |
| Neutrons: | 145; |
| Jn: | 1-; |
| Decay: | β - : 100.00 %; |
| t1/2: | 546s ≈ 9.10 m; |
Protactinium radioactive isotope number 28: 237Pa |
| Neutrons: | 146; |
| Jn: | 1/2+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 522s ≈ 8.70 m; |
Protactinium radioactive isotope number 29: 238Pa |
| Neutrons: | 147; |
| Jn: | 3-; |
| Decay: | β - : 100.00 %
SF < 2.6E-6 %; |
| t1/2: | 136.2s ≈ 2.27 m; |
Protactinium radioactive isotope number 30: 239Pa |
| Neutrons: | 148; |
| Jn: | 3/2; |
| Decay: | β - : 100.00 %; |
| t1/2: | 6480s ≈ 1.80 h; |
Protactinium radioactive isotope number 31: 240Pa |
| Neutrons: | 149; |
| Jn: | Unknown; |
| Decay: | β - ?; |
| t1/2: | 120s ≈ 2.00 m; |
