Scandium

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Scandium, 21Sc
Scandium sublimed dendritic and 1cm3 cube.jpg
Scandium
Pípè /ˈskændiəm/ (SKAN-dee-əm)
Ìhànsójúsilvery white
Ìwúwo átọ̀mù Ar, std(Sc)44.955908(5)[1]
Scandium ní orí tábìlì àyè
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
-

Sc

Y
calciumscandiumtitanium
Nọ́mbà átọ̀mù (Z)21
Ẹgbẹ́group 3
Àyèàyè 4
Àdìpọ̀Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì  Transition metal
Ìtò ẹ̀lẹ́ktrọ́nù[Ar] 3d1 4s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 9, 2
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́1814 K ​(1541 °C, ​2806 °F)
Ígbà ìhó3109 K ​(2836 °C, ​5136 °F)
Kíki (near r.t.)2.985 g/cm3
when liquid (at m.p.)2.80 g/cm3
Heat of fusion14.1 kJ/mol
Heat of 332.7 kJ/mol
Molar heat capacity25.52 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1645 1804 (2006) (2266) (2613) (3101)
Atomic properties
Oxidation states0,[2] +1,[3] +2,[4] +3 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
ElectronegativityPauling scale: 1.36
energies
Atomic radiusempirical: 162 pm
Covalent radius170±7 pm
Van der Waals radius211 pm
Color lines in a spectral range
Spectral lines of scandium
Other properties
Natural occurrenceprimordial
Crystal structurehexagonal
Hexagonal crystal structure for scandium
Thermal expansion(r.t.) (α, poly)
10.2 µm/(m·K)
Thermal conductivity15.8 W/(m·K)
Electrical resistivity(r.t.) (α, poly)
calc. 562 n Ω·m
Magnetic orderingparamagnetic
Young's modulus74.4 GPa
Shear modulus29.1 GPa
Bulk modulus56.6 GPa
Poisson ratio0.279
Brinell hardness750 MPa
CAS Number7440-20-2
Main isotopes of scandium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
44mSc syn 58.61 h IT 0.2709 44Sc
γ 1.0, 1.1, 1.1 44Sc
ε - 44Ca
45Sc 100% 45Sc is stable with 24 neutrons
46Sc syn 83.79 d β 0.3569 46Ti
γ 0.889, 1.120 -
47Sc syn 3.3492 d β 0.44, 0.60 47Ti
γ 0.159 -
48Sc syn 43.67 h β 0.661 48Ti
γ 0.9, 1.3, 1.0 -
Àdàkọ:Category-inline
| references

Itokasi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]

  1. Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry 88 (3): 265–91. doi:10.1515/pac-2015-0305. 
  2. F. Geoffrey N. Cloke; Karl Khan; Robin N. Perutz (1991). "η-Arene complexes of scandium(0) and scandium(II)". J. Chem. Soc., Chem. Commun. (19): 1372–1373. doi:10.1039/C39910001372. 
  3. 3.0 3.1 Smith, R. E. (1973). "Diatomic Hydride and Deuteride Spectra of the Second Row Transition Metals". Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences 332 (1588): 113–127. Bibcode 1973RSPSA.332..113S. doi:10.1098/rspa.1973.0015.  Àṣìṣe ìtọ́kasí: Invalid <ref> tag; name "Smith" defined multiple times with different content
  4. 4.0 4.1 McGuire, Joseph C.; Kempter, Charles P. (1960). "Preparation and Properties of Scandium Dihydride". Journal of Chemical Physics 33 (5): 1584–1585. Bibcode 1960JChPh..33.1584M. doi:10.1063/1.1731452.  Àṣìṣe ìtọ́kasí: Invalid <ref> tag; name "McGuire" defined multiple times with different content