Alphabetical Index
Browse by Elements
Keyword Search
ASTM Electrolytes
Macro Etchants
Micro Etchants
Named Etchants
New Etchants
Al and Al Alloys
Cu and Cu Alloys
Fe and Fe Alloys
Ni and Ni Alloys
Carbide Etchants
Fluoride Etchants
Nitride Etchants
Other Etchants
Oxide Etchants
Phosphide Etchants
Single Crystal Etchants
Thin Film Etchants
Wafer Etchants
Help
Home
Dysprosium
Symbol: Dy
Atomic Number: 66
Atomic Weight: 162.50
Element Classification: Rare Earth Element (Lanthanide Series)
Discovered By: Paul-Emile Lecoq de Boisbaudran
Discovery Date: 1886 (France)
Name Origin: Greek: dysprositos (hard to get at).
Density (g/cc): 8.55
Melting Point (°K): 1685
Boiling Point (°K): 2835
Appearance: Soft. lustrous, silvery metal
Atomic Radius (pm): 180
Atomic Volume (cc/mol): 19.0
Covalent Radius (pm): 159
Ionic Radius: 90.8 (+3e)
Specific Heat (@20°C J/g mol): 0.173
Fusion Heat (kJ/mol): n/a
Evaporation Heat (kJ/mol): 291
Thermal Conductivity (@25°C W/m K):
Debye Temperature (°K): n/a
Pauling Negativity Number: n/a
First Ionizing Energy (kJ/mol): 567
Oxidation States: 3
Electronic Configuration: [Xe] 4f10 6s2
Lattice Structure: Hexagonal (HEX)
Lattice Constant (Å): 3.590
Lattice C/A Ratio: 1.573
Brinell Hardness [/MN m-2]: 500
Vickers Hardness [/MN m-2]: 540