Radon-231

• β⁻→Francium-231

Decay chain

1. RnRadon-231Z 86 · N 1452.0 s
2. β⁻
   FrFrancium-231Z 87 · N 14417.6 s
3. β⁻100%
   RaRadium-231Z 88 · N 1431.73 m
4. β⁻100%
   AcActinium-231Z 89 · N 1427.5 m
5. β⁻100%
   ThThorium-231Z 90 · N 1411.06 d
6. β⁻100%
   PaProtactinium-231Z 91 · N 14032.65 ky
7. α~100%
   AcActinium-227Z 89 · N 13821.77 y
8. β⁻98.62%
   ThThorium-227Z 90 · N 13718.69 d
9. α100%
   RaRadium-223Z 88 · N 13511.44 d
10. α~100%
    RnRadon-219Z 86 · N 1333.96 s
11. α100%
    PoPolonium-215Z 84 · N 1311.78 ms
12. α~100%
    PbLead-211Z 82 · N 12936.16 m
13. β⁻100%
    BiBismuth-211Z 83 · N 1282.14 m
14. α~100%
    TlThallium-207Z 81 · N 1264.77 m
15. β⁻100%
    PbLead-207Z 82 · N 125Stable