Ytterbium

Ytterbium, ₇₀Yb

Ytterbium
Pípè	/ɪˈtɜːrbiəm/ ​(i-TUR-bee-əm)
Ìhànsójú	silvery white
Ìwúwo átọ̀mù Ar, std(Yb)	173.045(10)
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 thulium ← ytterbium → lutetium
Nọ́mbà átọ̀mù (Z)	70
Ẹgbẹ́	group n/a
Àyè	àyè 6
Àdìpọ̀	Àdìpọ̀-f
Ẹ̀ka ẹ́límẹ́ntì	Lanthanide
Ìtò ẹ̀lẹ́ktrọ́nù	[Xe] 4f14 6s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 32, 8, 2
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	1097 K ​(824 °C, ​1515 °F)
Ígbà ìhó	1469 K ​(1196 °C, ​2185 °F)
Kíki (near r.t.)	6.90 g/cm3
when liquid (at m.p.)	6.21 g/cm3
Heat of fusion	7.66 kJ/mol
Heat of	159 kJ/mol
Molar heat capacity	26.74 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
Electronegativity	Pauling scale: ? 1.1
Atomic radius	empirical: 176 pm
Covalent radius	187±8 pm
Spectral lines of ytterbium
Other properties
Natural occurrence	primordial
Crystal structure	​(fcc)
Speed of sound thin rod	1590 m/s (at 20 °C)
Thermal expansion	(r.t.) (β, poly) 26.3 µm/(m·K)
Thermal conductivity	38.5 W/(m·K)
Electrical resistivity	(r.t.) (β, poly) 0.250 µ Ω·m
Magnetic ordering	paramagnetic
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 hardness	206 MPa
Brinell hardness	343 MPa
CAS Number	7440-64-4
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