Einsteinio (Es) is a chemical element belonging to the category Inner transition metal, with atomic number 99 and atomic mass 252.0000 u. This sheet describes its fundamental properties, periodic position and physical characteristics.
Identity
- Name: Einsteinio
- Symbol: Es
- Atomic number: 99
- Atomic mass: 252.0000 u
Position in the periodic table
- Group: 3
- Period: 7
- Category: Inner transition metal
Physico-chemical properties
- Standard state: Solid
- Melting point: Very high (800°C to 3500°C)
- Density: Very high
- Electron configuration: [Rn] 5f¹¹ 7s²
Scientific description
Einsteinio is a chemical element with symbol Es and atomic number 99. It belongs to the category of Inner transition metal and occupies group 3 and period 7. Its standard atomic mass is 252.0000 u.