| Mendelevium | ≡ |
| Symbol | Md |
|---|---|
| Latin name | Mendelevium |
| Atomic number | 101 |
| Period | 7 |
| Element category | Inner transition elements |
| Relative atomic mass | 258.0986 |
| Group | III.B |
| Oxidation numbers | 2, 3 |
| State | Solid |
| Thermal conductivity [W m-1K-1] | 10 |
| Discovery | 1955 |
| 1.st ionization energy [eV] | 6.58 |
| Stable isotopes | 0 |
| Unstable isotopes | 3 |