Dysprosium (Dy) — Element 66: Properties & Data | Aladdin Scientific
Dysprosium(Dy) — Element 66
Dysprosium (Dy) is a lanthanide with atomic number 66 and atomic mass 162.5. It has melting point 1685 K (1412 °C), boiling point 2840 K (2567 °C), density 8.55 g/cm³. It sits in period 6 of the periodic table and was discovered in 1886.
Key facts
| Atomic mass | 162.5000 u |
|---|---|
| Electron configuration | [Xe]6s2 4f10 |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.22 |
| Atomic radius (van der Waals) | 229 pm |
| Ionization energy | 5.939 eV |
| Melting point | 1685 K |
| Boiling point | 2840 K |
| Density | 8.55 g/cm³ |
| Standard state | Solid |
| Year discovered | 1886 |
Frequently asked questions
What is the electron configuration of dysprosium?
The ground-state electron configuration of dysprosium is [Xe]6s2 4f10.
What group and period is dysprosium in?
Dysprosium (Dy) is in period 6 (lanthanide series) of the periodic table, classified as a lanthanide.
What is the melting point of dysprosium?
Dysprosium melts at 1685 K (1412 °C).
What is the standard state of dysprosium?
Dysprosium is a solid at standard temperature and pressure.
Related elements
About this data: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .