Cobalt is a silvery-gray metal from the periodic table, and it is part of the transition metals group. Cobalt is mainly used to create strong and lightweight alloys for aircraft and vehicle parts. It is also used to make magnets and superalloys, which are used in the aerospace and medical industries.
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| Atomic number | 27 |
| Group | VIIIB |
| Period | 4 |
| Mass | 58.933193 |
| Latin name | Cobaltum |
| Electron configuration | [Ar]3d7 4s2 |
| Oxidation state | -3, -1, 0, 1, 2, 3, 4, 5 |