| Attribute | Value |
|---|---|
| Symbol | Es |
| Standard state | Solid |
| Atomic mass | 252.083 u |
| Electron configuration | [Rn]7s²5f¹¹ |
| Oxidation states |
|
| Electronegativity (pauling scale) | 1.3 |
| Atomic radius (van der waals) | 245 pm |
| Ionization energy | 6.42 eV |
| Melting point | 1133 K |
| Atomic number | 99 |
| Group name | Actinide |
| Discovered | 1952 year |
| Electron affinity | Add |
| Boiling point | Add |
| Density | Add |