| Name | germanium |
|---|---|
| Symbol | Ge |
| Atomic Weight | 72.64 |
| Atomic Number | 32 |
| CAS ID | 7440-56-4 |
| Group Number | 14 |
| Group Name | (none) |
| Period Number | 4 |
| Origin of Name | Latin, Germania = "Germany." |
| Year Discovered | 1886 |
| Discovery Credits | C. A. Winkler at Freiberg, Germany. |
| Class | Semi-Metallic |
| Color | Grayish White |
| Standard State | Solid at 77 F & 298 K |
| Description | Ultra pure it is a silvery white brittle metalloid element. Stable in
air and water, unaffected by acids, except nitric, and alkalis. Used in
semiconductors, alloys, and special glasses for infrared devices. Diagnostic tests: |