Dysprosium Element Properties

Dysprosium

f65
Tb
Terbium
f66
Dy
Dysprosium
f67
Ho
Holmium
General
Name(Dysprosium)
Symbol(Dy)
Number(66)
Group Number(NA)
Group(Rare Earth, Lanthanides)
Block(f)
Density(8.536 g/cm3)
Atomic Weight(162.50 g/mol)
Atomic Volume(19.0 cm3/mol)
Discover(1886)


States
State(Solid)
Melting Point(1680 K)
Boiling Point(2840 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(11.06 kJ/mol)
Heat of Vaporization(280 kJ/mol)


Energies
First Ionization Energy(571.9 kJ/mole)
Second Ionization Energy(1126 kJ/mole)
Third Ionization Energy(2200 kJ/mole)
Electronegativity(1.2)
Electron Affinity(50 kJ/mole)
Specific Heat(0.17 J/gK)
Heat Atomization(291 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,28,8,2)
Electron Configuration([Xe] 4f10 6s2)
Minimum Oxidation Number(0)
Maximum Oxidation Number(3)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(3)


Appearance and Characteristics
Crystal Structure(hexagonal)
Characteristics(neutron absorber)
Color(silvery-white)
Uses(alloys, CD disk)
Hardness(Nil)
Toxicity(None)


Reactions
Reaction with Air(vigorous, =>Dy2O3)
Reaction with 6M HCl(mild, =>H2, DyCl3)
Reaction with 15M HNO3(mild, =>Dy(NO3)3)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(7)
Hydride(DyH2 DyH3)
Oxide(Dy2O3)
Chloride(DyCl2 DyCl3)


Radius
Atomic Radius(178 pm)
Ionic Radius (1+ ion)(Nil)
Ionic Radius (1- ion)(Nil)
Ionic Radius (2+ ion)(121 pm)
Ionic Radius (2- ion)(Nil)
Ionic Radius (3+ ion)(105.2 pm)


Conductivity
Thermal Conductivity(10.7 J/m-sec-deg)
Electrical Conductivity(10 1/mohm-cm)
Polarizability(24.5 A3)


Abundance
Source(Monazite(phosphate),bastnaesite)
Relation Abundance Solar System(-0.404 log)
Abundance Earths Crust(0.5 log)


f65
Tb
Terbium
f66
Dy
Dysprosium
f67
Ho
Holmium

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