| Name | berkelium |
|---|---|
| Symbol | Bk |
| Atomic Weight | 247.07 |
| Atomic Number | 97 |
| CAS ID | 7440-40-6 |
| Group Number | (none) |
| Group Name | Actinoid |
| Period Number | 7 |
| Origin of Name | English, Berkeley, CA, USA |
| Year Discovered | 1949 |
| Discovery Credits | Produced by S. G. Thompson, A. Ghiorso, and G. T. Seaborg. |
| Class | Metallic |
| Color | Unknown, possibly metallic and gray or silvery white in appearance |
| Standard State | Solid at 77 F & 298 K |
| Description | Radioactive silvery metal. Attacked by oxygen, steam, and acids, but not by alkalis. |