66
Dy
Dysprosium
Lanthanide period 6 f-block discovered: 1886
As a chemical element
Properties of the atom — they do not depend on what substance it is part of.
- Atomic number
- 66
- Atomic mass
- 162.500 a.m.u.
- Electron configuration
- [Xe]6s2 4f10
- Electronegativity
- 1.22 on the Pauling scale
- Atomic radius
- 229 pm
- Ionization energy
- 5.939 eV
- Oxidation states
- +3
As a simple substance
Properties of the substance these atoms form under ordinary conditions.
- State at 25 °C
- Solid
- Melting point
- 1685 K (1 411,85 °C)
- Boiling point
- 2840 K (2 566,85 °C)
- Density
- 8.55 g/cm³