(Incomplete)
| Isotope | Abundance | T½ (s) | Decay |
| 44Mn | | | |
| 45Mn | | | |
| 46Mn | | | |
| 47Mn | | | |
| 48Mn | | | |
| 49Mn | | | |
| 50Mn | | | |
| 51Mn | | | |
| 52Mn | | | |
| 53Mn | | | |
| 54Mn | | | |
| 55Mn | 100 % | Stable | - |
| 56Mn | | | |
| 57Mn | | | |
| 58Mn | | | |
| 59Mn | | | |
| 60Mn | | | |
| 61Mn | | | |
| 62Mn | | | |
| 63Mn | | | |
| 64Mn | | | |
| 65Mn | | | |
| 66Mn | | | |
| 67Mn | | | |
| 68Mn | | | |
| 69Mn | | | |
| 70Mn | | | |
| 72Mn | | | |
| 73Mn | | | |
Note: No 71Mn isotope.
All data from [9].
| 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 |
| 