Skandium

Skandium, 21Sc
Skandium
skandiyum·
Pabaosan/ˈskændiəm/ (SKAN-dee-əm)
Cingakanpetak kapérakan
Bobot atom standar Ar, std(Sc)44.955908(5)[1]
Skandium ring tabél périodik
Hidrogén Hélium
Litium Bérilium Boron Karbon Nitrogén Oksigén Fluorin Néon
Natrium Magnésium Aluminium Silikon Phosfor Urirang Klorin Argon
Potasium Kalsium Skandium Titanium Vanadium Kromium Mangan (datu) Wesi Kobalt Nikel Temaga Séng Gallium Gérmanium Arsenik Sélénium Brom Kripton
Rubidium Strontium Ittrium Zirkonium Niobium Molibdénum Téknésium Ruthénium Rhodium Palladium Pérak Kadmium Indium Timah Antimoni Téllurium Yodium Xénon
Sésium Barium Lanthanum Sérium Praséodimium Néodimium Prométhium Samarium Éuropium Gadolinium Terbium Disprosium Holmium Érbium Thulium Itterbium Lutésium Hafnium Tantalum Tungstén Rhénium Osmium Iridium Platinum Mas Rasa (datu) Thallium Timbal Bismuth Polonium Astatin Radon
Fransium Radium Aktinium Thorium Protaktinium Uranium Néptunium Plutonium Amérisium Curium Berkélium Kalifornium Éinsteinium Fermium Méndelevium Nobélium Lawrénsium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnérium Darmstadtium Roéntgénium Kopernikium Nihonium Flérovium Moskovium Livermorium Ténnessin Oganésson


Sc

Y
kalsiumskandiumtitanium
Wilangan atom (Z)21
Watekgolongan 3
Périodepériode 4
Blok  blok-d
Konpigurasi éléktron[Ar] 3d1 4s2
Éléktron per kulit2, 8, 9, 2
Cecirén pisik
Pase ring STPpadet
Titik lebur1814 K ​(1541 °C, ​2806 °F)
Titik didih3109 K ​(2836 °C, ​5136 °F)
Kapadetan (nampek s.r.)2.985 g/cm3
ri kala éncéh (ring t.l.)2.80 g/cm3
Panes fusi14.1 kJ/mol
Panes panguapan332.7 kJ/mol
Kapasitas panes molar25.52 J/(mol·K)
Tekanan uap
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1645 1804 (2006) (2266) (2613) (3101)
Cecirén atom
Paindikan oksidasi0,[2] +1,[3] +2,[4] +3 (oksida ampotér)
Kaéléktronégatipanskala Pauling: 1.36
Wasa ionisasi
  • ka-1: 633.1 kJ/mol
  • ka-2: 1235.0 kJ/mol
  • ka-3: 2388.6 kJ/mol
  • (malih)
Jeriji atomémpiris: 162 pm
Jeriji kovalén170±7 pm
Jeriji Van der Waals211 pm
Garis warna ring pentang spéktrum
Garis spéktral saking skandium
Cecirén liyanan
Rupa alamiprimordial
Struktur kristalsusunan padat héksagon (hcp)
Hexagonal close packed crystal structure for skandium
Ékspansi térmalα, poly: 10.2 µm/(m⋅K) (ring s.k.)
Konduktivitas térmal15.8 W/(m⋅K)
Resistivitas listrikα, poly: 562 nΩ⋅m (ring s.k., kapeték)
bacakan magnétikparamagnétik
Karentanan magnétik molar+315.0×10−6 cm3/mol (292 K)[5]
Modulus Young74.4 GPa
Modulus Shear29.1 GPa
Modulus Bulk56.6 GPa
Rasio Poisson0.279
Kakatosan Brinell736–1200 MPa
Nomor CAS7440-20-2
Lelintihan
Pangarananmawit Skandinavia
PancawanganDmitri Mendeleev (1871)
Panemuan miwah isolasi kapertamaLars Fredrik Nilson (1879)
Isotop utama skandium
Iso­top Kalimpahan Paruh-idup (t1/2) Mode paluruhan Pro­duk
44m2Sc syn 58.61 h IT 44Sc
γ 44Sc
ε 44Ca
45Sc 100% tegteg
46Sc syn 83.79 d β 46Ti
γ
47Sc syn 80.38 d β 47Ti
γ
48Sc syn 43.67 h β 48Ti
γ
Kategori:Skandium
| pustaka

Skandium silih tunggil datu kimia antuk simbol Sc miwah wilangan atom 21. Logam datu blok-d putih masawang pérak, sacara lelintihan sampun kanikayang dados datu tanah langka,[6] sareng Ittrium miwah lantanida. Katemuin warsa 1879 nganggén analisis spektral mineral euksénit miwah gadolinit saking Skandinavia.

  1. Méija, Juris; 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. Unknown parameter |name-list-style= ignored (help)
  3. 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. S2CID 96908213.
  4. 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.
  5. Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
  6. IUPAC Recommendations, NOMENCLATURE OF INORGANIC CHEMISTRY

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