Neptunium
Content created by REAL intelligence since 2016
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(Incomplete)
| Isotope | Abundance | T½ (s) | Decay |
| 219Np | | | |
| 220Np | | | |
| 222Np | | | |
| 223Np | | | |
| 224Np | | | |
| 225Np | | | |
| 226Np | | | |
| 227Np | | | |
| 228Np | | | |
| 229Np | | | |
| 230Np | | | |
| 231Np | | | |
| 232Np | | | |
| 233Np | | | |
| 234Np | | | |
| 235Np | | | |
| 236Np | | | |
| 237Np | | | |
| 238Np | | | |
| 239Np | | | |
| 240Np | | | |
| 241Np | | | |
| 242Np | | | |
| 243Np | | | |
| 244Np | | | |
| 245Np | | | |
All data from [5].
| α: | alpha particle emission (4He nucleus) |
| β+: | emission of an anti-electron and a neutrino. A proton inside the nucleus is transformed into a neutron |
| β-: | emission of an electron and an anti-neutrino. A neutron inside the nucleus is transformed into a proton |
| ec: | electron capture: capture of one orbital electron by the the nucleus. A proton inside the nucleus is transformed into a neutron plus a neutrino |
| SF: | Spontaneous Fission: a nucleus spontaneously splits into fragment nuclides |
| IT: | Isomeric Transition: a level above the ground state decays via electromagnetic process |
| n: | neutron emission |
| p: | proton emission |
| β- n (and similar): | beta- decay followed by delayed neutron emission |
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