Isotope | Half-life | Spin Parity | Decay Mode(s) or Abundance |
---|---|---|---|

^{ 218}U
| 1.5 ms | 0+ | %A=100 |

^{ 219}U
| 42 us | %A=? | |

^{ 220}U
| |||

^{ 221}U
| |||

^{ 222}U
| 1.0 us | 0+ | %A=100 |

^{ 223}U
| 18 us | %A=? | |

^{ 224}U
| 0.9 ms | 0+ | %A=100 |

^{ 225}U
| 95 ms | %A=100 | |

^{ 226}U
| 0.35 s | 0+ | %A=100 |

^{ 227}U
| 1.1 m | (3/2+) | %A=100, %EC+%B+ < 0.001 |

^{ 228}U
| 9.1 m | 0+ | %EC<5, %A>95 |

^{ 229}U
| 58 m | (3/2+) | %EC+%B+ ~ 80, %A ~ 20 |

^{ 230}U
| 20.8 d | 0+ | %A=100, %SF < 1.4E-10 |

^{ 231}U
| 4.2 d | (5/2-) | %EC=100, %A ~ 0.0055 |

^{ 232}U
| 68.9 y | 0+ | %A=100, %24NE=9E-11 7 |

^{ 233}U
| 1.592e+5 y | 5/2+ | %A=100, %SF < 6E-11, %24NE < 9.5E-11 |

^{ 234}U
| 2.455e+5 y | 0+ | %Abundance=0.0055 5, %A=100, %SF=1.64E-9 22, %NE=9E-12 7, %MG=1.4E-11 3 |

^{ 235}U
| 7.038e+8 y | 7/2- | %Abundance=0.7200 12, %A=100, %SF=7.0E-9 21, %20NE=8E-10 4 |

^{235m1}U
| 25 m | 1/2+ | %IT=100 |

^{ 236}U
| 2.342e7 y | 0+ | %A=100, %SF=9.4E-8 4 |

^{ 237}U
| 6.75 d | 1/2+ | %B-=100 |

^{ 238}U
| 4.468e+9 y | 0+ | %Abundance=99.2745 60, %A=100, %SF=5.45E-5 7, %BB=2.2E-10 7 |

^{238m1}U
| 225 ns | 0+ | |

^{238m2}U
| 1 ns | ||

^{ 239}U
| 23.45 m | 5/2+ | %B-=100 |

^{ 240}U
| 14.1 h | 0+ | %B-=100 |

^{ 241}U
| |||

^{ 242}U
| 16.8 m | 0+ | %B-=100 |

8th Edition of the Table of Isotopes

Isotopes Project Home Page

Lawrence Berkeley National Laboratory

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