| Technetium
|
| Name | Technetium
|
| Symbol | Tc
|
| Atomic number | 43
|
| Atomic mass | 97 amu
|
| Normal state
| Solid
|
| Classification
| Metallic
|
| Crystal structure
| Hexagonal
|
| Color
| Silvery-gray
|
| Date of discovery
| 1937
|
| Name of discoverer
| Carlo Perrier and Emillo G. Segre
|
| Name origin
| from the Greek tekhnetos, meaning artificial.
|
| Uses
| Source of radiation for medical research.
|
| Obtained from
| Manufactured by bombarding Molybdenum with heavy hydrogen in a cyclotron. Only minute quantities have been found outside the laboratory, as a by-product of the fission of Uranium-238.
|
