ତମ୍ବା ([Copper; କପର୍] Error: {{Lang-xx}}: text has italic markup (help)) ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Cu ([cuprum; କ୍ୟୁପ୍ରମ୍] Error: {{Lang-xx}}: text has italic markup (help)ରୁ ଅସିଛି) ଓ ପରମାଣୁ କ୍ରମାଙ୍କ ୨୯ ।
Quick facts ସାଧାରଣ ଗୁଣ, ନାମ, ପ୍ରତୀକ ...
Copper, 29Cu Native copper (~4 cm in size) |
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ନାମ, ପ୍ରତୀକ | copper, Cu |
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Appearance | red-orange metallic luster |
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ଉଚ୍ଚାରଣ | KOP-ər |
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ପରମାଣୁ କ୍ରମାଙ୍କ (Z) | 29 |
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ଶ୍ରେଣୀ, ବ୍ଳକ | group 11, d-block |
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ପର୍ଯ୍ୟାୟ | period 4 |
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ମୌଳିକ ପ୍ରକାର | transition metal |
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ମାନକ ପରମାଣବିକ ଓଜନ (±) (Ar) | 63.546(3) |
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ଇଲେକ୍ଟ୍ରୋନ୍ ବିନ୍ୟାସ | [Ar] 3d10 4s1 |
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per shell | 2, 8, 18, 1 |
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ଅବସ୍ଥା | solid |
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ଗଳନାଙ୍କ | 1357.77 K (1084.62 °C, 1984.32 °F) |
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ସ୍ଫୁଟନାଙ୍କ | 2835 K (2562 °C, 4643 °F) |
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Density near r.t. | 8.96 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 |
at T (K) |
1509 |
1661 |
1850 |
2089 |
2404 |
2834 |
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Oxidation states | +1, +2, +3, +4 mildly basic oxide |
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Electronegativity | Pauling scale: 1.90 |
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energies | (more) |
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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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Crystal structure | face-centered cubic (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[୧] |
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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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ଆବିଷ୍କାର | Middle Easterns (9000 BC) |
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iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
63Cu |
69.15% |
63Cu is stable with 34 neutrons |
64Cu |
syn |
12.700 h |
ε |
- |
64Ni |
β− |
- |
64Zn |
65Cu |
30.85% |
65Cu is stable with 36 neutrons |
67Cu |
syn |
61.83 h |
β− |
- |
67Zn |
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| references |
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