Dysprosium (Dy)
Dysprosium
Dysprosium (Dy) is a lanthanide in period 6. Its relative atomic mass is 162.5 and the molar mass of the atom is 162.5 g/mol.
Atomic number 66
Atomic mass 162.5
Molar mass 162.5 g/mol
Category Lanthanide Solid
Properties of dysprosium
| Atomic number | 66 |
|---|---|
| Symbol | Dy |
| Latin name | Dysprosium |
| Relative atomic mass | 162.5 |
| Molar mass | 162.5 g/mol |
| Group, period, block | —, 6, f |
| Category | Lanthanide |
| State at 20 °C | Solid |
| Electron configuration | [Xe] 4f¹⁰ 6s² |
| Electronegativity (Pauling) | 1.22 |
| Atomic radius | 175 pm |
Electron configuration of dysprosium
Electrons per shell
K2L8M18N28O8P2
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁰ 5s² 5p⁶ 6s²
Noble-gas notation
66 protons · 66 electrons[Xe] 4f¹⁰ 6s²
Formula and compounds of dysprosium
Simple substanceDydysprosiumMolar mass of Dy: 162.5 g/mol
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Frequently asked questions
The relative atomic mass of dysprosium is 162.5, so the molar mass of the atom is 162.5 g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁰ 5s² 5p⁶ 6s². Noble-gas notation: [Xe] 4f¹⁰ 6s².