Yttrium

Yttrium, ₃₉Y

Yttrium
Pípè	/ˈɪtriəm/ ​(IT-ree-əm)
Ìhànsójú	silvery white
Ìwúwo átọ̀mù Ar, std(Y)	88.90584(1)
Yttrium 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 ↓ La strontium ← yttrium → zirconium
Nọ́mbà átọ̀mù (Z)	39
Ẹgbẹ́	group 3
Àyè	àyè 5
Àdìpọ̀	Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì	Transition metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Kr] 4d1 5s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 9, 2
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	1799 K ​(1526 °C, ​2779 °F)
Ígbà ìhó	3609 K ​(3336 °C, ​6037 °F)
Kíki (near r.t.)	4.472 g/cm3
when liquid (at m.p.)	4.24 g/cm3
Heat of fusion	11.42 kJ/mol
Heat of	365 kJ/mol
Molar heat capacity	26.53 J/(mol·K)
pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1883 2075 (2320) (2627) (3036) (3607)
Atomic properties
Oxidation states	0, +1, +2, +3 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.22
Atomic radius	empirical: 180 pm
Covalent radius	190±7 pm
Color lines in a spectral range Spectral lines of yttrium
Other properties
Natural occurrence	primordial
Crystal structure	​hexagonal
Speed of sound thin rod	3300 m/s (at 20 °C)
Thermal expansion	(r.t.) (α, poly) 10.6 µm/(m·K)
Thermal conductivity	17.2 W/(m·K)
Electrical resistivity	(r.t.) (α, poly) 596 n Ω·m
Magnetic ordering	paramagnetic
Young's modulus	63.5 GPa
Shear modulus	25.6 GPa
Bulk modulus	41.2 GPa
Poisson ratio	0.243
Brinell hardness	589 MPa
CAS Number	7440-65-5
Main isotopes of yttrium
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 87Y syn 3.35 d ε - 87Sr γ 0.48, 0.38D - 88Y syn 106.6 d ε - 88Sr γ 1.83, 0.89 - 89Y 100% 89Y is stable with 50 neutrons 90Y syn 2.67 d β− 2.28 90Zr γ 2.18 - 91Y syn 58.5 d β− 1.54 91Zr γ 1.20 -