Dysprosium Element Properties, Rare Earth, Lanthanides Group, Periodic Table of the Elements
Dysprosium
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Dysprosium Element Properties |
 | | 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 Earth's Crust | 0.5 log |
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