Einsteinio

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.