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عمومي خواص |
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Pronunciation | UK/ˈæntɪməni/AN-tim-Ə-nee US/ˈæntɪmoʊni/AN-tim-OH-nee |
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Appearance | silvery lustrous gray |
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Antimony پهدوراني جدول کې |
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اټومي شمیره(Z) | 51 |
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گروپ,پیریود | group 15 (pnictogens),period 5 |
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بلاک | p-block |
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Element category | metalloid |
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معياري اټومي وزن (Ar) | کينډۍ:Val[۱] |
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Electron configuration | [Kr] 4d10 5s2 5p3 |
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Electrons per shell | 2, 8, 18, 18, 5 |
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فزیکي خواص |
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حالت(at STP) | جامد |
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دويلې کيدو ټکى | 903.78 K (630.63 °C, 1167.13 °F) |
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يشنا ټکی | 1908 K (1635 °C, 2975 °F) |
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Density near r.t. | 6.697 g/cm3 |
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when liquid, at m.p. | 6.53 g/cm3 |
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Heat of fusion | 19.79 kJ/mol |
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Heat of vaporization | 193.43 kJ/mol |
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Molar heat capacity | 25.23 J/(mol·K) |
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Vapor pressure |
اټومي خواص |
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Oxidation states | 5, 4,3, 2, 1, −1, −2,−3 (anamphoteric oxide) |
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Electronegativity | Pauling scale: 2.05 |
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Ionization energies | - 1st: 834 kJ/mol
- 2nd: 1594.9 kJ/mol
- 3rd: 2440 kJ/mol
- (more)
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Atomic radius | empirical: 140 pm |
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Covalent radius | 139±5 pm |
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Van der Waals radius | 206 pm |
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Miscellanea |
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Crystal structure | rhombohedral Rhombohedral crystal structure for antimony |
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Speed of sound thin rod | 3420 m/s (at 20 °C) |
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Thermal expansion | 11 µm/(m·K) (at 25 °C) |
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د تودوخې تېرېدنه | 24.4 W/(m·K) |
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Electrical resistivity | 417 nΩ·m (at 20 °C) |
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Magnetic ordering | diamagnetic[۲] |
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Magnetic susceptibility(χmol) | −99.0·10−6 cm3/mol[۳] |
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Young's modulus | 55 GPa |
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Shear modulus | 20 GPa |
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Bulk modulus | 42 GPa |
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Mohs hardness | 3.0 |
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Brinell hardness | 294–384 MPa |
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CAS Number | 7440-36-0 |
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History |
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Discovery | ca. 800 |
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Mainisotopes of antimony |
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| references | in Wikidata |