 |
| 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:
There are no simple diagnostic tests to identify scandium.
X-ray fluorescence spectroscopy is commonly employed to identify and
analyze members of the group 3 elements.
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