Ytterbium

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Ytterbium, 70Yb
Ytterbium 1-croprotated.jpg
Ytterbium
Pípè /ɪˈtɜːrbiəm/ (i-TUR-bee-əm)
Ìhànsójúsilvery white
Ìwúwo átọ̀mù Ar, std(Yb)173.045(10)[1]
Ytterbium 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
-

Yb

No
thuliumytterbiumlutetium
Nọ́mbà átọ̀mù (Z)70
Ẹgbẹ́group n/a
Àyèàyè 6
Àdìpọ̀Àdìpọ̀-f
Ẹ̀ka ẹ́límẹ́ntì  Lanthanide
Ìtò ẹ̀lẹ́ktrọ́nù[Xe] 4f14 6s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 18, 32, 8, 2
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́1097 K ​(824 °C, ​1515 °F)
Ígbà ìhó1469 K ​(1196 °C, ​2185 °F)
Kíki (near r.t.)6.90 g/cm3
when liquid (at m.p.)6.21 g/cm3
Heat of fusion7.66 kJ/mol
Heat of 159 kJ/mol
Molar heat capacity26.74 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 736 813 910 1047 (1266) (1465)
Atomic properties
Oxidation states+1, +2, +3 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
ElectronegativityPauling scale: ? 1.1
Atomic radiusempirical: 176 pm
Covalent radius187±8 pm
Color lines in a spectral range
Spectral lines of ytterbium
Other properties
Natural occurrenceprimordial
Crystal structure ​(fcc)
Face-centered cubic crystal structure for ytterbium
Speed of sound thin rod1590 m/s (at 20 °C)
Thermal expansion(r.t.) (β, poly) 26.3 µm/(m·K)
Thermal conductivity38.5 W/(m·K)
Electrical resistivity(r.t.) (β, poly) 0.250 µ Ω·m
Magnetic orderingparamagnetic[2]
Young's modulus(β form) 23.9 GPa
Shear modulus(β form) 9.9 GPa
Bulk modulus(β form) 30.5 GPa
Poisson ratio(β form) 0.207
Vickers hardness206 MPa
Brinell hardness343 MPa
CAS Number7440-64-4
Main isotopes of ytterbium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
166Yb syn 56.7 h ε 0.304 166Tm
168Yb 0.13% 168Yb is stable with 98 neutrons
169Yb syn 32.026 d ε 0.909 169Tm
170Yb 3.04% 170Yb is stable with 100 neutrons
171Yb 14.28% 171Yb is stable with 101 neutrons
172Yb 21.83% 172Yb is stable with 102 neutrons
173Yb 16.13% 173Yb is stable with 103 neutrons
174Yb 31.83% 174Yb is stable with 104 neutrons
175Yb syn 4.185 d β 0.470 175Lu
176Yb 12.76% 176Yb is stable with 106 neutrons
177Yb syn 1.911 h β 1.399 177Lu
Àdàkọ:Category-inline
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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. M. Jackson "Magnetism of Rare Earth" The IRM quaterly col. 10, No. 3, p. 1, 2000