Symbol
Dy
Atomic Number
66
Atomic Mass
162.5
Protons
66
Neutrons
96
Electrons
66
Type
Lanthanide
Isotopes
Dysprosium-156, Dysprosium-158, Dysprosium-160, Dysprosium-161, Dysprosium-162, Dysprosium-163
Discovery Year
1886
Discovered By
Paul Émile Lecoq de Boisbaudran
Group
3
Period
6
Boiling Point
2562°C
Melting Point
1412°C
Electron Configuration
[Xe] 6s² 4f¹⁰
Density (g/cm³)
8.55
Crystal Structure
Hexagonal
Magnetism
Ferromagnetic
Abundance in Earth's Crust
0.0005%
Phase at Room Temperature
Solid