| Name | curium |
|---|---|
| Symbol | Cm |
| Atomic Weight | 247.07 |
| Atomic Number | 96 |
| CAS ID | 7440-51-9 |
| Group Number | (none) |
| Group Name | Actinoid |
| Period Number | 7 |
| Origin of Name | Named after Pierre and Marie Curie. |
| Year Discovered | 1944 |
| Discovery Credits | Prepared by G. T. Seaborg, Ra. a. James, and A. Ghiorso in 1944 at Berdeley, California, USA. |
| Class | Metallic |
| Color | Silver |
| Standard State | Solid at 77 F & 298 K |
| Description | Radioactive, silvery metal which does not occur naturally. Attacked by oxygen, steam, and acids but not alkalis |