ايتريوم (په انگرېزي: Yttrium) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Y سمبول او ۳۹ اتمي شمېرې په وسیله ښودل شوی دی.
چټک مالومات عمومي خواص, Pronunciation ...
Yttrium, 39Y |
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| Pronunciation | /ˈɪtriəm/
IT-ree-əm |
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| Appearance | silvery white |
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| اټومي شمیره (Z) | 39 |
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| گروپ, پیریود | group 3, period 5 |
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| بلاک | d-block |
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| Element category | transition metal |
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| معياري اټومي وزن (Ar) | کينډۍ:Val[۱] |
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| Electron configuration | [Kr] 4d1 5s2 |
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Electrons per shell | 2, 8, 18, 9, 2 |
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| حالت (at STP) | جامد |
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| دويلې کيدو ټکى | 1799 K (1526 °C, 2779 °F) |
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| يشنا ټکی | 3203 K (2930 °C, 5306 °F) |
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| Density near r.t. | 4.472 g/cm3 |
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| when liquid, at m.p. | 4.24 g/cm3 |
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| Heat of fusion | 11.42 kJ/mol |
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| Heat of vaporization | 363 kJ/mol |
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| Molar heat capacity | 26.53 J/(mol·K) |
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Vapor pressure
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T (K) |
1883 |
2075 |
(2320) |
(2627) |
(3036) |
(3607) |
|
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| Oxidation states | 3, 2, 1 (a weakly basic oxide) |
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| Electronegativity | Pauling scale: 1.22 |
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| Ionization energies | - 1st: 600 kJ/mol
- 2nd: 1180 kJ/mol
- 3rd: 1980 kJ/mol
-
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| Atomic radius | empirical: 180 pm |
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| Covalent radius | 190±7 pm |
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| Crystal structure | hexagonal close-packed (hcp) Hexagonal close packed crystal structure for yttrium |
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| Speed of sound thin rod | 3300 m/s (at 20 °C) |
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| Thermal expansion | α, poly: 10.6 µm/(m·K) (at r.t.) |
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| د تودوخې تېرېدنه | 17.2 W/(m·K) |
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| Electrical resistivity | α, poly: 596 nΩ·m (at r.t.) |
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| Magnetic ordering | paramagnetic[۲] |
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| Magnetic susceptibility (χmol) | +2.15·10−6 cm3/mol (2928 K)[۳] |
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| Young's modulus | 63.5 GPa |
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| Shear modulus | 25.6 GPa |
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| Bulk modulus | 41.2 GPa |
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| Poisson ratio | 0.243 |
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| Brinell hardness | 200–589 MPa |
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| CAS Number | 7440-65-5 |
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| Naming | after Ytterby (Sweden) and its mineral ytterbite (gadolinite) |
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| Discovery | Johan Gadolin (1794) |
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| First isolation | Carl Gustav Mosander (1842) |
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| آيسوټوپ |
Abundance |
نیم ژوند (t1/2) |
Decay mode |
Product
کينډۍ:Infobox element/isotopes decay2
کينډۍ:Infobox element/isotopes decay2 |
| 89Y |
100% |
stable
کينډۍ:Infobox element/isotopes decay2
کينډۍ:Infobox element/isotopes decay2 |
|
| | references | in Wikidata |
تړل
