Dysprosium reacts more readily with air and water than most other lanthanide metals. Although it was discovered in 1886, it could not be purified until the 1950s. This metal is often used with neodymium to make magnets used in automobile batteries, wind turbines and generators.

Summary of properties (Dy)

Atomic weight162.500(1)
Discoverer (year)Lecoq de Boisbaudran, Paul-Émile (1886)
Natural formmetallic solid (hexagonal)
Electron configuration[Xe] 410 6s2
Melting point (ºC)1412
Boiling point (ºC)2562
Abundance in earth's crust (ppm)5.2
Isotope (abundance)156Dy (0.056), 158Dy (0.095), 160Dy (2.329), 161Dy (18.889), 162Dy (25.475), 163Dy (24.896), 164Dy (28.260)
Density g/cm38.55
Van der Waals radius (pm)231
Covalent radius (pm)180
Electronegativity (Pauling)1.22
Vaporization enthalpy (kJ/mol)293.00
Enthalpy of fusion (kJ/mol)11.06
Specific heat capacity (J/g·K) at 25ºC and 1 atm0.17
Thermal conductivity (W/cm·K) at 25ºC and 1 atm0.110
Oxidation state+3
Electron affinity (eV)>0
1st Ionization potential (eV)5.9389

Back to the Periodic Table of the Elements.