![]() |
Iron |
![]() |
![]() |
Number of Energy Levels: 4 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 14 Fourth Energy Level: 2 |
| Isotope | Half Life |
| Fe-52 | 8.3 hours |
| Fe-54 | Stable |
| Fe-55 | 2.7 years |
| Fe-56 | Stable |
| Fe-57 | Stable |
| Fe-58 | Stable |
| Fe-59 | 54.5 days |
| Fe-60 | 1.5e+006 years |