66 Dy 162.5
Dysprosium
lanthanide
Properties
- Atomic number
- 66
- Atomic mass
- 162.5 u
- Category
- lanthanide
- Group
- f-block
- Period
- 6
- Block
- f-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.22 (Pauling)
- Density
- 8.54 g/cm³
- Melting point
- 1406.85 °C
- Boiling point
- 2566.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁰
Noble-gas shorthand: [Xe] 4f¹⁰ 6s²
Electrons per shell: 2, 8, 18, 28, 8, 2 — that's 2 in the outermost shell.
About 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.
- Discovered by Lecoq de Boisbaudran
- Appearance: silvery white
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.