Element: einsteinium |
Name : einsteinium |
Symbol : Es |
Atomicnumber : 99 |
Relativeatomicmass : [ 252 ] (longest lived isotope) |
Standardstate : solid at 298 K |
Appearance : unknown, but probably metallic and silvery white or grey in appearance |
Classification : Metallic |
Groupinperiodictable : None |
Groupname : Actinoid |
Periodinperiodictable : 7 (actinoid) |
Blockinperiodictable : f |
Shellstructure : 2.8.18.32.29.8.2 |
CASRegistry : 7429-92-7 |
Description : Einsteinium is radioactive rare earth metal named after Albert Einstein. It is of no commercial importance and only a few of its compounds are known. |