Dy
Dysprosium Symbol (Dy)
Dysprosium is element 66 of the periodic table. Copy its symbol Dy and see its atomic weight, electron configuration and physical properties.
What does Dy mean?
Dy is the chemical symbol for dysprosium, element number 66 in the periodic table. Dysprosium is a lanthanide in the f-block, period 6. It is a solid at room temperature and was discovered in 1886.
Codes and properties
| Chemical symbol | Dy |
|---|---|
| Atomic number (Z) | 66 |
| Atomic weight (PubChem) | 162.500 |
| Group / period | f-block / 6 |
| Element category | lanthanide |
| Electron configuration | [Xe]6s² 4f¹⁰ |
| State at 20 °C | Solid |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.22 |
| Melting point | 1685 K (1411.85 °C) |
| Boiling point | 2840 K (2566.85 °C) |
| Density | 8.55 g/cm³ |
| Discovered | 1886 |
How to type Dy
- Plain text: type
Dy— element symbols are ordinary Latin letters, with the first letter capitalised and the second lowercase. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as H₂O — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Dy}in math mode, or use the mhchem package:\ce{Dy}. - HTML:
Dy; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for dysprosium?
The chemical symbol for dysprosium is Dy.
What is the atomic number of dysprosium?
Dysprosium has atomic number 66, meaning each atom has 66 protons.
What is the electron configuration of dysprosium?
The ground-state electron configuration of dysprosium is [Xe]6s² 4f¹⁰.
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Reference: Dysprosium on PubChem (NIH)