Periodic Table Element Comparison: Compare Elements - Dysprosium vs Erbium
Compare Dysprosium and Erbium
Compare Dysprosium and Erbium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Dysprosium vs Erbium with most reliable information about their properties, attributes, facts, uses etc. You can compare Dy vs Er on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
Facts
Name |
Atomic Number |
Atomic Symbol |
Atomic Weight |
Phase |
Color |
Classification |
Group in Periodic Table |
Group Name |
Period in Periodic Table |
Block in Periodic Table |
Electronic Configuration |
Melting Point |
Boiling Point |
Electronic Shell Structure |
CAS Number |
Neighborhood Elements |
Dysprosium |
66 |
Dy |
162.5 |
Solid |
Silver |
lanthanide |
N/A |
6 |
f |
[Xe] 4f10 6s2 |
1412 °C |
2567 °C |
2, 8, 18, 28, 8, 2 |
CAS7429-91-6 |
Neighborhood Elements of Dysprosium |
Erbium |
68 |
Er |
167.259 |
Solid |
Silver |
lanthanide |
N/A |
6 |
f |
[Xe] 4f12 6s2 |
1497 °C |
2868 °C |
2, 8, 18, 30, 8, 2 |
CAS7440-52-0 |
Neighborhood Elements of Erbium |
History
History |
The element Dysprosium was discovered by Lecoq de Boisbaudran in year 1886 in France. Dysprosium derived its name from from the Greek dysprositos, meaning 'hard to get' |
The element Erbium was discovered by Carl Gustaf Mosander in year 1842 in Sweden. Erbium derived its name derived its name from from Ytterby, Sweden |
Presence: Abundance in Nature and Around Us
2×10-7% |
2×10-7% |
2.7e-07 |
6.2e-06 |
9.1×10-11% |
N/A |
2×10-7% |
1×10-7% |
1.8e-07 |
3e-06 |
9×10-11% |
N/A |
Crystal Structure and Atomic Structure
Atomic Radius |
Atomic Volume |
Covalent Radius |
Van der Waals Radius |
Neutron Cross Section |
Atomic Spectrum |
Lattice Constant |
Lattice Angle |
Space Group Name |
Space Group Number |
Crystal Structure |
228 pm |
19.003625306982 cm3 |
N/A |
N/A |
1010 |
![]() |
359.3, 359.3, 565.37 pm |
π/2, π/2, 2 π/3 |
P63/mmc |
194 |
Simple Hexagonal ![]() |
226 pm |
18.449040370615 cm3 |
N/A |
N/A |
165 |
![]() |
355.88, 355.88, 558.74 pm |
π/2, π/2, 2 π/3 |
P63/mmc |
194 |
Simple Hexagonal ![]() |
Atomic and Orbital Properties
Atomic Number |
Number of Electrons (with no charge) |
Number of Protons |
Mass Number |
Number of Neutrons |
Shell structure (Electrons per energy level) |
Electron Configuration |
Valence Electrons |
Oxidation State |
Atomic Term Symbol (Quantum Numbers) |
Shell structure |
66 |
66 |
66 |
162.5 |
96.5 |
2, 8, 18, 28, 8, 2 |
[Xe] 4f10 6s2 |
4f10 6s2 |
2;3;4 |
5I8 |
![]() |
68 |
68 |
68 |
167.259 |
99.259 |
2, 8, 18, 30, 8, 2 |
[Xe] 4f12 6s2 |
4f12 6s2 |
2;3 |
3H6 |
![]() |
Isotopes - Nuclear Properties
Isotopes |
Naturally occurring stable
isotopes: 156Dy, 158Dy, 160Dy, 161Dy, 162Dy, 163Dy, 164Dy. |
Naturally occurring stable
isotopes: 162Er, 164Er, 166Er, 167Er, 168Er, 170Er. |
Chemical Properties: Ionization Energies and electron affinity
3 |
1.22 |
50 kJ/mol |
573, 1130, 2.2×103, 3990 kJ/mol |
3 |
1.24 |
50 kJ/mol |
589.3, 1150, 2194, 4120 kJ/mol |
Physical Properties
Density |
Molar Volume |
Elastic Properties |
Young Modulus |
Shear Modulus |
Bulk Modulus |
Poisson Ratio |
Hardness - Tests to Measure of Hardness of Element |
Mohs Hardness |
Vickers Hardness |
Brinell Hardness |
Electrical Properties |
Electrical Conductivity |
Resistivity |
Superconducting Point |
Heat and Conduction Properties |
Thermal Conductivity |
Thermal Expansion |
Magnetic Properties |
Magnetic Type |
Curie Point |
Mass Magnetic Susceptibility |
Molar Magnetic Susceptibility |
Volume Magnetic Susceptibility |
Optical Properties |
Refractive Index |
Acoustic Properties |
Speed of Sound |
8.551 g/cm3 |
19.003625306982 |
61 GPa |
25 GPa |
41 GPa |
0.25 |
N/A |
540 MPa |
500 MPa |
1.1×106 S/m |
9.1×10-7 m Ω |
N/A |
11 W/(m K) |
9.9×10-6 K-1 |
Paramagnetic |
87 K |
5.45×10-6 |
8.85625×10-7 |
0.046603 |
N/A |
2710 m/s |
9.066 g/cm3 |
18.449040370615 |
70 GPa |
28 GPa |
44 GPa |
0.24 |
N/A |
589 MPa |
814 MPa |
1.2×106 S/m |
8.6×10-7 m Ω |
N/A |
15 W/(m K) |
0.0000122 K-1 |
Paramagnetic |
32 K |
3.77×10-6 |
6.30566×10-7 |
0.0341788 |
N/A |
2830 m/s |
Thermal Properties - Enthalpies and thermodynamics
1412 °C |
2567 °C |
N/A |
N/A |
11.1 kJ/mol |
280 kJ/mol |
N/A |
1497 °C |
2868 °C |
N/A |
N/A |
19.9 kJ/mol |
285 kJ/mol |
N/A |
Regulatory and Health - Health and Safety Parameters and Guidelines
CAS Number |
RTECS Number |
DOT Hazard Class |
DOT Numbers |
EU Number |
NFPA Fire Rating |
NFPA Hazards |
NFPA Health Rating |
NFPA Reactivity Rating |
More |
AutoIgnition Point |
Flashpoint |
CAS7429-91-6 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
CAS7440-52-0 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |