| Proton number | Neutron number | Nucleon number | Symbol | Name |
| 26 | 30 | 56 | Fe | Iron |
| 27 | 32 | 59 | Co | Cobalt |
| 28 | 30 | 58 | Ni | Nickel |
| 29 | 34 | 63 | Cu | Copper |
| 30 | 34 | 64 | Zn | Zinc |
| 32 | 42 | 74 | Ge | Germanium |
| 33 | 42 | 75 | As | Arsenic |
| 35 | 44 | 79 | Br | Bromine |
| 36 | 48 | 84 | Ne | Krypton |
| 38 | 50 | 88 | Sr | Strontium |
| 47 | 60 | 107 | Ag | Silver |
| 48 | 66 | 114 | Cd | Cadmium |
| 50 | 70 | 120 | Sn | Tin |
| 51 | 70 | 121 | Sb | Antimony |