بېسموت (په انگرېزي: Bismuth) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Bi سمبول او ۸۳ اتمي شمېرې په وسیله ښودل شوی دی.
چټک مالومات عمومي خواص, Pronunciation ...
Bismuth, 83Bi |
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| Pronunciation | /ˈbɪzməθ/
BIZ-məth |
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| Appearance | lustrous brownish silver |
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| اټومي شمیره (Z) | 83 |
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| گروپ, پیریود | group 15 (pnictogens), period 6 |
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| بلاک | p-block |
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| Element category | post-transition metal |
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| معياري اټومي وزن (Ar) | کينډۍ:Val[۱] |
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| Electron configuration | [Xe] 4f14 5d10 6s2 6p3 |
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Electrons per shell | 2, 8, 18, 32, 18, 5 |
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| حالت (at STP) | جامد |
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| دويلې کيدو ټکى | 544.7 K (271.5 °C, 520.7 °F) |
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| يشنا ټکی | 1837 K (1564 °C, 2847 °F) |
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| Density near r.t. | 9.78 g/cm3 |
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| when liquid, at m.p. | 10.05 g/cm3 |
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| Heat of fusion | 11.30 kJ/mol |
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| Heat of vaporization | 179 kJ/mol |
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| Molar heat capacity | 25.52 J/(mol·K) |
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Vapor pressure
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T (K) |
941 |
1041 |
1165 |
1325 |
1538 |
1835 |
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| Oxidation states | 5, 4, 3, 2, 1, −1, −2, −3 (a mildly acidic oxide) |
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| Electronegativity | Pauling scale: 2.02 |
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| Ionization energies | - 1st: 703 kJ/mol
- 2nd: 1610 kJ/mol
- 3rd: 2466 kJ/mol
- (more)
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| Atomic radius | empirical: 156 pm |
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| Covalent radius | 148±4 pm |
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| Van der Waals radius | 207 pm |
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| Crystal structure | rhombohedral[۲] Rhombohedral crystal structure for bismuth |
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| Speed of sound thin rod | 1790 m/s (at 20 °C) |
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| Thermal expansion | 13.4 µm/(m·K) (at 25 °C) |
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| د تودوخې تېرېدنه | 7.97 W/(m·K) |
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| Electrical resistivity | 1.29 µΩ·m (at 20 °C) |
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| Magnetic ordering | diamagnetic |
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| Magnetic susceptibility (χmol) | −280.1·10−6 cm3/mol[۳] |
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| Young's modulus | 32 GPa |
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| Shear modulus | 12 GPa |
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| Bulk modulus | 31 GPa |
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| Poisson ratio | 0.33 |
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| Mohs hardness | 2.25 |
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| Brinell hardness | 70–95 MPa |
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| CAS Number | 7440-69-9 |
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| Discovery | Claude François Geoffroy (1753) |
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| آيسوټوپ |
Abundance |
نیم ژوند (t1/2) |
Decay mode |
Product |
| 207Bi |
syn |
31.55 y |
β+ |
207Pb |
| 208Bi |
syn |
3.68×105 y |
β+ |
208Pb |
| 209Bi |
100% |
1.9×1019 y |
α |
205Tl
کينډۍ:Infobox element/isotopes decay2
کينډۍ:Infobox element/isotopes decay2 |
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| | references | in Wikidata |
تړل
