Element: americium |
Name : americium |
Symbol : Am |
Atomicnumber : 95 |
Relativeatomicmass : [ 243 ] (longest lived isotope) |
Standardstate : solid at 298 K |
Appearance : silvery white |
Classification : Metallic |
Groupinperiodictable : None |
Groupname : Actinoid |
Periodinperiodictable : 7 (actinoid) |
Blockinperiodictable : f |
Shellstructure : 2.8.18.32.25.8.2 |
CASRegistry : 7440-35-9 |
Description : The lustre of freshly prepared americium metal is whiter and more silvery than plutonium or neptunium prepared in the same manner. Americium is a component of the smoke detector above. |