NO. 066Lanthanide

Dy

Dysprosium

Dysprosium is used in high-performance magnets and nuclear reactor control rods.

Crystal Structure

Hexagonal close-packed (hcp)

Atomic Mass162.5 u

Density8.54 g/cm³

Melting Point1680 K

Boiling Point2840 K

Atomic Radius175 pm

Electronegativity1.22

Ionization Energy573 kJ/mol

Electron Affinity50 kJ/mol

Bonding TypeMetallic

Oxidation States3

Acid/BaseBasic

ReactivityHigh

Electron Configuration

[Xe] 4f10 6s2

Discovered ByPaul-Émile Lecoq de Boisbaudran

Year1886

Known Isotopes

Dy-156Dy-158Dy-160Dy-161Dy-162Dy-163Dy-164