Technetium is a chemical element from the periodic table. It is a radioactive, silvery-gray transition metal that is only found in trace amounts in nature. Technetium is used in the medical field in nuclear medicine, and is also used in the production of nuclear fuel.
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| Atomic number | 43 |
| Group | VIIB |
| Period | 5 |
| Mass | 98 |
| Latin name | Technetium |
| Electron configuration | [Kr]4d5 5s2 |
| Oxidation state | -3, -1, 0, 1, 2, 3, 4, 5, 6, 7 |