 |
| Name |
dysprosium |
| Symbol |
Dy |
| Atomic Weight |
162.50 |
| Atomic Number |
66 |
| CAS ID |
7429-91-6 |
| Group Number |
(none) |
| Group Name |
Lanthanoid |
| Period Number |
6 |
| Origin of Name |
Greek, dysprositos = "hard to obtain." |
| Year Discovered |
1886 |
| Discovery Credits |
Discovered by Paul-Emile Lecoq de Boisbaudran at Paris,
France. |
| Class |
Metallic |
| Color |
Silvery white |
| Standard State |
Solid at 77 F & 298 K |
| Description |
Reactive, hard, silvery metal of the rare earth group.
Oxidized by oxygen, reacts rapidly with water, dissolves in acids. Used in
alloys for making magnets. Diagnostic tests:
There are no simple diagnostic tests to identify dysprosium.
X-ray fluorescence spectroscopy is commonly employed to identify and
analyze members of the Rare-Earth group elements.
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