Actinium-234n

• β⁻→Thorium-234
• γ→Actinium-234

Decay chain

1. AcActinium-234Z 89 · N 1453.0 m
2. β⁻
   ThThorium-234Z 90 · N 14424.11 d
3. β⁻100%
   PaProtactinium-234Z 91 · N 1436.7 h
4. β⁻100%
   UUranium-234Z 92 · N 142245.5 ky
5. α~100%
   ThThorium-230Z 90 · N 14075.4 ky
6. α~100%
   RaRadium-226Z 88 · N 1381.6 ky
7. α~100%
   RnRadon-222Z 86 · N 1363.82 d
8. α100%
   PoPolonium-218Z 84 · N 1343.1 m
9. α99.98%
   PbLead-214Z 82 · N 13227.06 m
10. β⁻100%
    BiBismuth-214Z 83 · N 13119.9 m
11. β⁻99.976%
    PoPolonium-214Z 84 · N 130163.47 µs
12. α100%
    PbLead-210Z 82 · N 12822.2 y
13. β⁻~100%
    BiBismuth-210Z 83 · N 1275.01 d
14. β⁻~100%
    PoPolonium-210Z 84 · N 126138.38 d
15. α100%
    PbLead-206Z 82 · N 124Stable