| name | Mendelevium |
| latin | Mendelevium |
| french | Mendélévium |
| german | Mendelevium |
| symbol | Md |
| proton number | 101 |
| atomic weight | [258] |
| Pauling electronegativity | 1.3 |
| electronic configuration | [Rn] 5f136d07s2 1s22s22p63s23p63d104s24p64d105s25p64f145d106s26p65f136d07s2 |
| melting point | 1100 K, 827°C, 1520°F |
| boiling point | - |
| group | - |
| period | 7 |
| state (by 20°C) | solid |
| oxidation states | +3 |
| Year of discovery | Discoverers |
| 1955 | Albert Ghiorso Bernard G. Harvey Gregory R. Choppin Stanley G. Thompson Glenn T. Seaborg (*1912) |