Elements · ← Cf Californium · Fm Fermium →
Es Einsteinium
Basic facts
| Symbol | Es |
|---|---|
| Atomic number | 99 |
| Atomic mass | 252.0830(no standard atomic weight: the element has no stable isotopes or characteristic natural composition; PubChem lists this isotope mass) |
| Group | none (actinide series) |
| Period | 7 |
| Block | f-block |
| Category | Actinide |
| Standard state | Solid |
| Discovered | 1952 |
Source: PubChem, Einsteinium (periodic table data, retrieved 2026-10-19). Group and period follow the standard 18-column periodic table.
Biotech uses & experiments
No verified biotech applications listed yet.