 |
| Name |
ytterbium |
| Symbol |
Yb |
| Atomic Weight |
173.04 |
| Atomic Number |
70 |
| CAS ID |
7440-64-4 |
| Group Number |
|
| Group Name |
Lanthanoid |
| Period Number |
6 |
| Origin of Name |
Named after Ytterby, Sweden. |
| Year Discovered |
1878 |
| Discovery Credits |
Discovered by J. C. G. De Marignac at Geneva, Switzerland. |
| Class |
Metallic |
| Color |
Silvery White |
| Standard State |
Solid at 77 F & 298 K |
| Description |
Soft, silvery-white metal of the lanthanide (rare earth) group. Slowly oxidized by air, reacts with water. Some use in stress gauges. Diagnostic tests:
There are no simple diagnostic tests to identify ytterbium.
X-ray fluorescence spectroscopy is commonly employed to identify and
analyze members of the Rare-Earth group elements.
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