Dysprosium (Dy)

From Wikipedia, the free encyclopediaDysprosium is a chemical element with the symbol Dy and atomic number 66. It is a rare earth element with a metallic silver luster. Dysprosium is never found in nature as a free element, though it is found in various minerals, such as xenotime.

Dysprosium in the periodic table

Atomic number66
Element categoryLanthanide

Physical properties

Phase at STPSolid
Density8.54 g/cm3
Atomic weight162.5 u
Melting point1680 K
1406.85 °C
2564.33 °F
Boiling point2840 K
2566.85 °C
4652.33 °F

Atomära egenskaper

Electronegativity (Pauling Scale)1.22
Electron affinity33.96 kJ/mol
Ionization energies
1573 kJ/mol
2 1130 kJ/mol
3 2200 kJ/mol
4 3990 kJ/mol

Electron configuration

Electron configuration1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f10 5s2 5p6 6s2
Electrons per shell2, 8, 18, 28, 8, 2


Discovered byLecoq de Boisbaudran