ഫലകം:Infobox uranium
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വസ്തുതകൾ Uranium, Pronunciation ...
Uranium | |||||||||||||||
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Pronunciation | /jʊəˈreɪniəm/ | ||||||||||||||
Appearance | silvery gray metallic; corrodes to a spalling black oxide coat in air | ||||||||||||||
Uranium ആവർത്തനപ്പട്ടികയിൽ | |||||||||||||||
ഗ്രൂപ്പ് | f-block groups (no number) | ||||||||||||||
പിരീഡ് | period 7 | ||||||||||||||
ബ്ലോക്ക് | f-block | ||||||||||||||
ഇലക്ട്രോൺ വിന്യാസം | [Rn] 5f3 6d1 7s2 | ||||||||||||||
Electrons per shell | 2, 8, 18, 32, 21, 9, 2 | ||||||||||||||
Physical properties | |||||||||||||||
Phase at STP | solid | ||||||||||||||
ദ്രവണാങ്കം | 1405.3 K (1132.2 °C, 2070 °F) | ||||||||||||||
ക്വഥനാങ്കം | 4404 K (4131 °C, 7468 °F) | ||||||||||||||
Density (near r.t.) | 19.1 g/cm3 | ||||||||||||||
when liquid (at m.p.) | 17.3 g/cm3 | ||||||||||||||
ദ്രവീകരണ ലീനതാപം | 9.14 kJ/mol | ||||||||||||||
Heat of vaporization | 417.1 kJ/mol | ||||||||||||||
Molar heat capacity | 27.665 J/(mol·K) | ||||||||||||||
Vapor pressure
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Atomic properties | |||||||||||||||
Oxidation states | +1, +2, +3,[1] +4, +5, +6 (a weakly basic oxide) | ||||||||||||||
Electronegativity | Pauling scale: 1.38 | ||||||||||||||
അയോണീകരണ ഊർജം |
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ആറ്റോമിക ആരം | empirical: 156 pm | ||||||||||||||
കൊവാലന്റ് റേഡിയസ് | 196±7 pm | ||||||||||||||
Van der Waals radius | 186 pm | ||||||||||||||
Spectral lines of uranium | |||||||||||||||
Other properties | |||||||||||||||
Natural occurrence | primordial | ||||||||||||||
ക്രിസ്റ്റൽ ഘടന | orthorhombic | ||||||||||||||
Speed of sound thin rod | 3155 m/s (at 20 °C) | ||||||||||||||
Thermal expansion | 13.9 µm/(m⋅K) (at 25 °C) | ||||||||||||||
താപചാലകത | 27.5 W/(m⋅K) | ||||||||||||||
Electrical resistivity | 0.280 µΩ⋅m (at 0 °C) | ||||||||||||||
കാന്തികത | paramagnetic | ||||||||||||||
Young's modulus | 208 GPa | ||||||||||||||
Shear modulus | 111 GPa | ||||||||||||||
ബൾക്ക് മോഡുലസ് | 100 GPa | ||||||||||||||
Poisson ratio | 0.23 | ||||||||||||||
Vickers hardness | 1960–2500 MPa | ||||||||||||||
Brinell hardness | 2350–3850 MPa | ||||||||||||||
സി.എ.എസ് നമ്പർ | 7440-61-1 | ||||||||||||||
History | |||||||||||||||
Naming | after planet Uranus, itself named after Greek god of the sky Uranus | ||||||||||||||
Discovery | Martin Heinrich Klaproth (1789) | ||||||||||||||
First isolation | Eugène-Melchior Péligot (1841) | ||||||||||||||
Isotopes of uranium കാ • [{{fullurl:Template:{{{template}}}|action=edit}} തി] | |||||||||||||||
ഫലകം:Infobox element isotopes | |||||||||||||||
വർഗ്ഗം: Uranium | references |
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കൂടുതൽ വിവരങ്ങൾ U · Uranium ...
U · Uranium | ||
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Spectral lines image |
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