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66 - Dysprosium lanthanide

Discovered by Lecoq de Boisbaudran in 1886

Dysprosium

Dysprosium 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.
Shell Electrons Orbitals
1 2 2 in 1s
2 8 2 in 2s + 6 in 2p
3 18 2 in 3s + 6 in 3p + 10 in 3d
4 28 2 in 4s + 6 in 4p + 10 in 4d + 10 in 4f
5 8 2 in 5s + 6 in 5p
6 2 2 in 6s
DysprosiumDy Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 19 Electron 20 Electron 21 Electron 22 Electron 23 Electron 24 Electron 25 Electron 26 Electron 27 Electron 28 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2
162.5  u Atomic Mass
2.5  Å Atomic Radius
2840  K Boiling Point
1.92  Å Covalent Radius
8.54  g/cm³ Density
33.96 Electron Affinity
1.22 Electronegativity
5.94  eV First Ionization Energy
1680.15  K Melting Point
6 Number of Shells
66 Atomic Number
2, 8, 18, 28, 8, 2 Electron Shell Occupations