మూస:Infobox dysprosium

వికీపీడియా నుండి
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డిస్ప్రోసియం, 00Dy
డిస్ప్రోసియం
Pronunciation/dɪsˈprziəm/ (dis-PROH-zee-əm)
Appearancesilvery white
Standard atomic weight Ar°(Dy)
డిస్ప్రోసియం in the periodic table
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 Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
-

Dy

Cf
టెర్బియండిస్ప్రోసియంహోల్మియం
Groupమూస:Infobox element/symbol-to-group/format
Periodperiod 6
Block  f-block
Electron configuration[Xe] 4f10 6s2
Electrons per shell2, 8, 18, 28, 8, 2
Physical properties
Phase at STPsolid
Melting point1680 K ​(1407 °C, ​2565 °F)
Boiling point2840 K ​(2562 °C, ​4653 °F)
Density (near r.t.)8.540 g/cm3
when liquid (at m.p.)8.37 g/cm3
Heat of fusion11.06 kJ/mol
Heat of vaporization280 kJ/mol
Molar heat capacity27.7 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1378 1523 (1704) (1954) (2304) (2831)
Atomic properties
Oxidation states0,[3] +1, +2, +3, +4 (a weakly basic oxide)
ElectronegativityPauling scale: 1.22
Atomic radiusempirical: 178 pm
Covalent radius192±7 pm
Color lines in a spectral range
Spectral lines of డిస్ప్రోసియం
Other properties
Natural occurrenceprimordial
Crystal structurehexagonal close-packed (hcp)
Hexagonal close packed crystal structure for డిస్ప్రోసియం
Speed of sound thin rod2710 m/s (at 20 °C)
Thermal expansion(r.t.) (α, poly) 9.9 µm/(m⋅K)
Thermal conductivity10.7 W/(m⋅K)
Electrical resistivity(r.t.) (α, poly) 926 n Ω⋅m
Magnetic orderingparamagnetic at 300 K
Young's modulus(α form) 61.4 GPa
Shear modulus(α form) 24.7 GPa
Bulk modulus(α form) 40.5 GPa
Poisson ratio(α form) 0.247
Vickers hardness540 MPa
Brinell hardness500 MPa
CAS Number7429-91-6
History
DiscoveryLecoq de Boisbaudran (1886)
Isotopes of డిస్ప్రోసియం
Template:infobox డిస్ప్రోసియం isotopes does not exist
 Category: డిస్ప్రోసియం
| references

References

  1. "Standard Atomic Weights: Dysprosium". CIAAW. 2001.
  2. Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
  3. Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.