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| Copper |
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| Ìhànsójú | reddish/orange metallic luster |
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| Ìwúwo átọ̀mù Ar, std(Cu) | 63.546(3)[1] |
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| Copper ní orí tábìlì àyè |
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| Nọ́mbà átọ̀mù (Z) | 29 |
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| Ẹgbẹ́ | group 11 |
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| Àyè | àyè 4 |
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| Àdìpọ̀ | Àdìpọ̀-d |
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| Ẹ̀ka ẹ́límẹ́ntì | Transition metal |
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| Ìtò ẹ̀lẹ́ktrọ́nù | [Ar] 3d10 4s1 |
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| Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 1 |
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| Àwọn ohun ìní ara |
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| Ìfarahàn at STP | solid |
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| Ìgbà ìyọ́ | 1357.77 K (1084.62 °C, 1984.32 °F) |
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| Ígbà ìhó | 2835 K (2562 °C, 4643 °F) |
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| Kíki (near r.t.) | 8.94 g/cm3 |
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| when liquid (at m.p.) | 8.02 g/cm3 |
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| Heat of fusion | 13.26 kJ/mol |
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| Heat of | 300.4 kJ/mol |
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| Molar heat capacity | 24.440 J/(mol·K) |
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pressure| P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
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| at T (K) | 1509 | 1661 | 1850 | 2089 | 2404 | 2834 |
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| Atomic properties |
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| Oxidation states | −2, 0,[2] +1, +2, +3, +4 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
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| Electronegativity | Pauling scale: 1.90 |
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| energies | |
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| Atomic radius | empirical: 128 pm |
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| Covalent radius | 132±4 pm |
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| Van der Waals radius | 140 pm |
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 Color lines in a spectral rangeSpectral lines of copper |
| Other properties |
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| Natural occurrence | primordial |
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| Crystal structure | (fcc) |
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| Speed of sound thin rod | (annealed)
3810 m/s (at r.t.) |
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| Thermal expansion | 16.5 µm/(m·K) (at 25 °C) |
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| Thermal conductivity | 401 W/(m·K) |
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| Electrical resistivity | 16.78 n Ω·m (at 20 °C) |
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| Magnetic ordering | diamagnetic |
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| Young's modulus | 110–128 GPa |
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| Shear modulus | 48 GPa |
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| Bulk modulus | 140 GPa |
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| Poisson ratio | 0.34 |
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| Mohs hardness | 3.0 |
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| Vickers hardness | 369 MPa |
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| Brinell hardness | 874 MPa |
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| CAS Number | 7440-50-8 |
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| Main isotopes of copper |
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| Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
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| 63Cu | 69.15% | 63Cu is stable with 34 neutrons | | 65Cu | 30.85% | 65Cu is stable with 36 neutrons |
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Àdàkọ:Category-inline
| references |
