66
Dy
Dysprosium
Dysprosium
Dysprosium (Dy)
Lanthanides · Solid · Period 6 · Group 3
Element Properties
- Atomic Number
- 66
- Symbol
- Dy
- Atomic Mass
- 162.5
- Category
- Lanthanides
- Standard State
- Solid
- Period
- 6
- Group
- 3
- Electronegativity
- 1.22
- Atomic Radius
- 229
- Ionization Energy
- 5.94
- Electron Affinity
- —
- Oxidation States
- +3
- Melting Point
- 1685 K (1411.85 °C)
- Boiling Point
- 2840 K (2566.85 °C)
- Density
- 8.55
- Electron Configuration
- [Xe]6s2 4f10
- Year Discovered
- 1886
Electron shells
[Xe]6s2 4f10
Electrons are arranged in shells (principal energy levels) around the nucleus. The diagram is a schematic — orbitals in the same shell are not drawn separately.
Advertisement
Frequently asked questions
What is the atomic number of Dysprosium?
The atomic number of Dysprosium is 66, which equals the number of protons in its nucleus.
What is the atomic mass of Dysprosium?
The atomic mass of Dysprosium is approximately 162.5 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Dysprosium?
The electron configuration of Dysprosium is [Xe]6s2 4f10.
Where is Dysprosium in the periodic table?
Dysprosium is located in period 6, group 3.
When was Dysprosium discovered?
Dysprosium was discovered in 1886.
Related elements
Same group
21
Sc
Scandium
44.956
39
Y
Yttrium
88.906
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.24