Radium radioactive isotope number 1: 202Ra |
| Neutrons: | 114; |
| Jn: | 0+; |
| Decay: | α; |
| t1/2: | 0.0007s ≈ 0.70 ms; |
Radium radioactive isotope number 2: 203Ra |
| Neutrons: | 115; |
| Jn: | 3/2-; |
| Decay: | α ~ 100.00 %; |
| t1/2: | 0.031s ≈ 31.00 ms; |
Radium radioactive isotope number 3: 203Ra |
| Neutrons: | 115; |
| Jn: | 13/2+; |
| Decay: | α ~ 100.00 %; |
| t1/2: | 0.024s ≈ 24.00 ms; |
Radium radioactive isotope number 4: 204Ra |
| Neutrons: | 116; |
| Jn: | 0+; |
| Decay: | α; |
| t1/2: | 0.059s ≈ 59.00 ms; |
Radium radioactive isotope number 5: 205Ra |
| Neutrons: | 117; |
| Jn: | 3/2-; |
| Decay: | α ≤ 100.00 %
ε; |
| t1/2: | 0.21s ; |
Radium radioactive isotope number 6: 205Ra |
| Neutrons: | 117; |
| Jn: | 13/2+; |
| Decay: | α ≤ 100.00 %
ε; |
| t1/2: | 0.17s ; |
Radium radioactive isotope number 7: 206Ra |
| Neutrons: | 118; |
| Jn: | 0+; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.24s ; |
Radium radioactive isotope number 8: 207Ra |
| Neutrons: | 119; |
| Jn: | 5/2-,3/2-; |
| Decay: | α ~ 90.00 %
ε ~ 10.00 %; |
| t1/2: | 1.3s ; |
Radium radioactive isotope number 9: 207Ra |
| Neutrons: | 119; |
| Jn: | 13/2+; |
| Decay: | IT : 85.00 %
α : 15.00 %
ε ~ 0.35 %; |
| t1/2: | 0.055s ≈ 55.00 ms; |
Radium radioactive isotope number 10: 208Ra |
| Neutrons: | 120; |
| Jn: | 0+; |
| Decay: | α : 95.00 %
ε : 5.00 %; |
| t1/2: | 1.3s ; |
Radium radioactive isotope number 11: 209Ra |
| Neutrons: | 121; |
| Jn: | 5/2-; |
| Decay: | α ~ 90.00 %
ε ~ 10.00 %; |
| t1/2: | 4.6s ; |
Radium radioactive isotope number 12: 210Ra |
| Neutrons: | 122; |
| Jn: | 0+; |
| Decay: | α ~ 96.00 %
ε ~ 4.00 %; |
| t1/2: | 3.7s ; |
Radium radioactive isotope number 13: 211Ra |
| Neutrons: | 123; |
| Jn: | 5/2-; |
| Decay: | α > 93.00 %
ε < 7.00 %; |
| t1/2: | 13s ; |
Radium radioactive isotope number 14: 212Ra |
| Neutrons: | 124; |
| Jn: | 0+; |
| Decay: | α ~ 85.00 %
ε ~ 15.00 %; |
| t1/2: | 13s ; |
Radium radioactive isotope number 15: 213Ra |
| Neutrons: | 125; |
| Jn: | 1/2-; |
| Decay: | α : 80.00 %
ε : 20.00 %; |
| t1/2: | 164.4s ≈ 2.74 m; |
Radium radioactive isotope number 16: 213Ra |
| Neutrons: | 125; |
| Jn: | Unknown; |
| Decay: | IT ~ 99.00 %
α ~ 1.00 %; |
| t1/2: | 0.0021s ≈ 2.10 ms; |
Radium radioactive isotope number 17: 214Ra |
| Neutrons: | 126; |
| Jn: | 0+; |
| Decay: | α : 99.94 %
ε : 0.06 %; |
| t1/2: | 2.46s ; |
Radium radioactive isotope number 18: 215Ra |
| Neutrons: | 127; |
| Jn: | 9/2+; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.00155s ≈ 1.55 ms; |
Radium radioactive isotope number 19: 216Ra |
| Neutrons: | 128; |
| Jn: | 0+; |
| Decay: | α : 100.00 %
ε < 1.0E-8 %; |
| t1/2: | 1.82E-07s ≈ 0.18 µs; |
Radium radioactive isotope number 20: 217Ra |
| Neutrons: | 129; |
| Jn: | 9/2+; |
| Decay: | α ~ 100.00 %; |
| t1/2: | 1.6E-06s ≈ 1.60 µs; |
Radium radioactive isotope number 21: 218Ra |
| Neutrons: | 130; |
| Jn: | 0+; |
| Decay: | α : 100.00 %; |
| t1/2: | 2.52E-05s ≈ 25.20 µs; |
Radium radioactive isotope number 22: 219Ra |
| Neutrons: | 131; |
| Jn: | 7/2+; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.01s ≈ 10.00 ms; |
Radium radioactive isotope number 23: 220Ra |
| Neutrons: | 132; |
| Jn: | 0+; |
| Decay: | α : 100.00 %; |
| t1/2: | 0.018s ≈ 18.00 ms; |
Radium radioactive isotope number 24: 221Ra |
| Neutrons: | 133; |
| Jn: | 5/2+; |
| Decay: | α : 100.00 %
14C : 1E-12 %; |
| t1/2: | 28s ; |
Radium radioactive isotope number 25: 222Ra |
| Neutrons: | 134; |
| Jn: | 0+; |
| Decay: | α : 100.00 %
14C : 3.0E-8 %; |
| t1/2: | 38s ; |
Radium radioactive isotope number 26: 223Ra |
| Neutrons: | 135; |
| Jn: | 3/2+; |
| Decay: | α : 100.00 %
14C : 8.9E-8 %; |
| t1/2: | 987552s ≈ 11.43 d; |
Radium radioactive isotope number 27: 224Ra |
| Neutrons: | 136; |
| Jn: | 0+; |
| Decay: | α : 100.00 %
14C : 4.0E-9 %; |
| t1/2: | 313796.2s ≈ 3.63 d; |
Radium radioactive isotope number 28: 225Ra |
| Neutrons: | 137; |
| Jn: | 1/2+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 1287360s ≈ 14.90 d; |
Radium radioactive isotope number 29: 226Ra |
| Neutrons: | 138; |
| Jn: | 0+; |
| Decay: | α : 100.00 %
14C : 3.2E-9 %; |
| t1/2: | 50457600000s ≈ 1.600000e+3 y; |
Radium radioactive isotope number 30: 227Ra |
| Neutrons: | 139; |
| Jn: | 3/2+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 2532s ≈ 42.20 m; |
Radium radioactive isotope number 31: 228Ra |
| Neutrons: | 140; |
| Jn: | 0+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 181332000s ≈ 5.75 y; |
Radium radioactive isotope number 32: 229Ra |
| Neutrons: | 141; |
| Jn: | 5/2+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 240s ≈ 4.00 m; |
Radium radioactive isotope number 33: 230Ra |
| Neutrons: | 142; |
| Jn: | 0+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 5580s ≈ 1.55 h; |
Radium radioactive isotope number 34: 231Ra |
| Neutrons: | 143; |
| Jn: | 5/2+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 103s ; |
Radium radioactive isotope number 35: 232Ra |
| Neutrons: | 144; |
| Jn: | 0+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 252s ≈ 4.20 m; |
Radium radioactive isotope number 36: 233Ra |
| Neutrons: | 145; |
| Jn: | Unknown; |
| Decay: | β - : 100.00 %; |
| t1/2: | 30s ; |
Radium radioactive isotope number 37: 234Ra |
| Neutrons: | 146; |
| Jn: | 0+; |
| Decay: | β - : 100.00 %; |
| t1/2: | 30s ; |
