Template:Infobox dysprosium

Dysprosium, ₆₆Dy

Dysprosium
Pronunciation	/dɪsˈproʊziəm/ ​(dis-PROH-zee-əm)
Appearance	silvery white
Standard atomic weight Ar, std(Dy)	162.500(1)
Dysprosium 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 Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson – ↑ Dy ↓ Cf terbium ← dysprosium → holmium
Atomic number (Z)	66
Group	group n/a
Period	period 6
Block	f-block
Element category	f-block
Electron configuration	[Xe] 4f10 6s2
Electrons per shell	2, 8, 18, 28, 8, 2
Physical properties
Phase at STP	solid
Melting point	1680 K ​(1407 °C, ​2565 °F)
Boiling point	2840 K ​(2562 °C, ​4653 °F)
Density (near r.t.)	8.540 g/cm3
when liquid (at m.p.)	8.37 g/cm3
Heat of fusion	11.06 kJ/mol
Heat of vaporization	280 kJ/mol
Molar heat capacity	27.7 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 states	0, +1, +2, +3, +4 (a weakly basic oxide)
Electronegativity	Pauling scale: 1.22
Ionization energies	1st: 573.0 kJ/mol 2nd: 1130 kJ/mol 3rd: 2200 kJ/mol
Atomic radius	empirical: 178 pm
Covalent radius	192±7 pm
Spectral lines of dysprosium
Other properties
Natural occurrence	primordial
Crystal structure	​hexagonal close-packed (hcp)
Speed of sound thin rod	2710 m/s (at 20 °C)
Thermal expansion	α, poly: 9.9 µm/(m·K) (r.t.)
Thermal conductivity	10.7 W/(m·K)
Electrical resistivity	α, poly: 926 nΩ·m (r.t.)
Magnetic ordering	paramagnetic at 300 K
Magnetic susceptibility	+103,500·10−6 cm3/mol (293.2 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 hardness	410–550 MPa
Brinell hardness	500–1050 MPa
CAS Number	7429-91-6
History
Discovery	Lecoq de Boisbaudran (1886)
Main isotopes of dysprosium
Iso­tope Abun­dance Physics:Half-life (t1/2) Decay mode Pro­duct 154Dy syn 3.0×106 y α 150Gd 156Dy 0.056% stable 158Dy 0.095% stable 160Dy 2.329% stable 161Dy 18.889% stable 162Dy 25.475% stable 163Dy 24.896% stable 164Dy 28.260% stable

Dy data m.p. cat
	in	calc from C	diff	report	ref
C	1407	—	—
K	1680	1680	0
F	2565	2565	0
max precision	0
WD
input	C: 1407, K: 1680, F: 2565
comment

Dy data b.p. cat
	in	calc from C	diff	report	ref
C	2562	—	—
K	2840	2835	5
F	4653	4644	9
max precision	0
WD
input	C: 2562, K: 2840, F: 4653
comment

PTChemistry:dysprosium

Tb ← i'box Tb	iso66Dy  infobox  isobox	→ Ho i'box Ho
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[]  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Category (enwiki)
Standard atomic weight
most stable isotope
Natural occurrence
Phase at STP
Chemistry:Oxidation states
Spectral lines image
Physics:Electron configuration (cmt, ref)
Term symbol * (cmt, ref)
Wikidata *
* Not used in {{Infobox element}} (2019-02-03) See also {{Infobox element/symbol-to--navbox}}

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