Es
99 actinide Generado con IA
Einstenio
Symbol Es
Atomic Mass 252
Einsteinium is a synthetic element with symbol Es and atomic number 99. It is the seventh transuranic element, and an actinide. Einsteinium was discovered as a component of the debris of the first hydrogen bomb explosion in 1952, and named after Albert Einstein.
Properties
- Phase: Solid
- Density: 8.84 g/cm³
- Melting Point: 1133 K
- Boiling Point: 1269 K