Dysprosium

Symbol | Dy
Latin name | Dysprosium
Atomic number | 66
Period | 6
Element category | Inner transition elements
Relative atomic mass | 162.50
Group | III.B
Electronegativity | 1.2
Oxidation numbers | 3
Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f10 5d0 6s2
Density [g/cm3] | 5.559
State | Solid
Melting point [°C] | 1412
Boiling point [°C] | 2562
Atomic radius [pm] | 228
Thermal conductivity [W m-1K-1] | 10.7
Heat capacity [J K-1g-1] | 0.173
Discovery | 1843
Vickers hardness [MPa] | 540
Brinell hardness [MPa] | 500
Young's modulus [GPa] | 61
Electrical conductivity [S m-1] | 1.1 · 106
Shear modulus [GPa] | 25
1.st ionization energy [eV] | 5.9389
2.nd ionization energy [eV] | 11.67
3.rd ionization energy [eV] | 22.802
Stable isotopes | 7
Unstable isotopes | 14