Copper is a reddish-brown metal from the periodic table, and it is part of the transition metals group. Copper is one of the oldest known metals, and it has many uses, including electrical wiring, plumbing and roofing. It is also used to make coins, jewelry, and sculptures.
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| Atomic number | 29 |
| Group | IB |
| Period | 4 |
| Mass | 63.546 |
| Latin name | Cuprum |
| Electron configuration | [Ar]3d10 4s |
| Oxidation state | -2, 0, 1, 2, 3, 4 |