| name | Einsteinium |
| latin | Einsteinium |
| french | Einsteinium |
| german | Einsteinium |
| symbol | Es |
| proton number | 99 |
| atomic weight | [252] |
| Pauling electronegativity | 1.3 |
| electronic configuration | [Rn] 5f116d07s2 1s22s22p63s23p63d104s24p64d105s25p64f145d106s26p65f116d07s2 |
| melting point | 1133 K, 860°C, 1580°F |
| boiling point | - |
| group | - |
| period | 7 |
| state (by 20°C) | solid |
| oxidation states | +3 |
| Year of discovery | Discoverer |
| 1952 | Albert Ghiorso and his coworkers at Berkeley |