| Name | scandium |
|---|---|
| Symbol | Sc |
| Atomic Weight | 44.955910 |
| Atomic Number | 21 |
| CAS ID | 7440-20-2 |
| Group Number | 3 |
| Group Name | (none) |
| Period Number | 4 |
| Origin of Name | From the Latin, Scandia, meaning "Scandinavia." |
| Year Discovered | 1879 |
| Discovery Credits | Discovered by L. F. Nilson at Uppsala, Sweden. |
| Class | Metallic |
| Color | Silvery White |
| Standard State | Solid at 77 F & 298 K |
| Description | Soft, silvery-white metal. Tarnishes in air and burns easily. Reacts with water to form hydrogen gas. Forms salts with acids. Little used. Diagnostic tests: |