Neptunium-240m

• β⁻→Plutonium-24099.88%
• γ→Neptunium-2400.12%

Decay chain

1. NpNeptunium-240Z 93 · N 1477.22 m
2. β⁻99.88%
   PuPlutonium-240Z 94 · N 1466.56 ky
3. α~100%
   UUranium-236Z 92 · N 14423.42 My
4. α~100%
   ThThorium-232Z 90 · N 14214.0 Gy
5. α~100%
   RaRadium-228Z 88 · N 1405.75 y
6. β⁻100%
   AcActinium-228Z 89 · N 1396.15 h
7. β⁻100%
   ThThorium-228Z 90 · N 1381.91 y
8. α~100%
   RaRadium-224Z 88 · N 1363.63 d
9. α~100%
   RnRadon-220Z 86 · N 13455.6 s
10. α100%
    PoPolonium-216Z 84 · N 132144.0 ms
11. α100%
    PbLead-212Z 82 · N 13010.63 h
12. β⁻100%
    BiBismuth-212Z 83 · N 1291.01 h
13. β⁻64.046%
    PoPolonium-212Z 84 · N 128294.4 ns
14. α100%
    PbLead-208Z 82 · N 126Stable