 |
| Name |
americium |
| Symbol |
Am |
| Atomic Weight |
246.06 |
| Atomic Number |
95 |
| CAS ID |
7440-35-9 |
| Group Number |
|
| Group Name |
Actinoid |
| Period Number |
7 |
| Origin of Name |
Named after the American Continent |
| Year Discovered |
1944 |
| Discovery Credits |
Discovered by G. T. Seaborg, R. A. James, I. O. Morgan, and
A. Ghiorso at Chicago, IL., USA. |
| Class |
Metallic |
| Color |
Silvery White |
| Standard State |
Solid at 77 F & 298 K |
| Description |
Radioactive, silvery metal which does not occur naturally. Attacked by
air, steam, and acids, but not alkalis. |
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