Rutherfordium |
| Symbol | Rf |
|---|---|
| Latin name | Rutherfordium |
| Atomic number | 104 |
| Period | 7 |
| Element category | Transition elements |
| Relative atomic mass | 261.1087 |
| Group | III.B |
| Oxidation numbers | 4 |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d2 7s2 |
| State | Solid |
| Discovery | 1964 |
| Stable isotopes | 0 |
| Unstable isotopes | 6 |