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Dy Element
Dysprosium


Periodic Table
Symbol
Dy
Group Number
3 15
Period Number
6 2
Block
f block
Element Family
Lanthanide
CAS Number
7429916 91
Space Group Name
P63/mmc
Space Group Number
194.00 7
Facts
Interesting Facts
  • Dysprosium acts stable in air at room temperature.
  • Dysprosium behaves very much like paramagnetic metal.
Sources
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Lecoq de Boisbaudran
Discovery
In 1886
Abundance
Abundance In Universe
0.00 % 23
Abundance In Sun
0.00 % 25
Abundance In Meteorites
0.00 % 33
Abundance In Earth's Crust
0.00 % 28
Abundance In Oceans
0.00 % 35
Abundance In Humans
0.00 % 24
Uses
Uses & Benefits
  • Dysprosium metal is highly reactive due to which it pure form is not as usual as its alloy.
  • Thi metals alloy is used in magnate as it is resistance to high temperature.
Industrial Uses
-
Medical Uses
-
Other Uses
Alloys, Nuclear Research
Biological Properties
Toxicity
Mildly Toxic
Present in Human Body
No
In Blood
0.00 Blood/mg dm-3 40
In Bone
0.00 p.p.m. 41
Physical
Melting Point
1,407.00 °C 32
Boiling Point
2,562.00 °C 45
Appearance
Physical State
Solid
Color
Silvery White
Luster
Metallic
Hardness
Mohs Hardness
5.00 8
Brinell Hardness
500.00 MPa 28
Vickers Hardness
540.00 MPa 32
Speed of Sound
2,710.00 m/s 47
Optical Properties
Refractive Index
1.78 23
Reflectivity
35.00 % 34
Allotropes
No
α Allotropes
-
β Allotropes
-
γ Allotropes
-
Chemical
Chemical Formula
Dy
Isotopes
Known Isotopes
29 10
Electronegativity
Pauling Electronegativity
1.22 39
Sanderson Electronegativity
1.22 31
Allred Rochow Electronegativity
1.10 31
Mulliken-Jaffe Electronegativity
1.22 38
Allen Electronegativity
1.22 47
Electropositivity
Pauling Electropositivity
2.78 16
Ionization Energies
1st Energy Level
573.00 kJ/mol 67
2nd Energy Level
1,130.00 kJ/mol 72
3rd Energy Level
2,200.00 kJ/mol 67
4th Energy Level
3,990.00 kJ/mol 47
5th Energy Level
5,730.00 kJ/mol 58
6th Energy Level
5,730.00 kJ/mol 72
7th Energy level
5,730.00 kJ/mol 63
8th Energy Level
5,730.00 kJ/mol 61
9th Energy Level
6,340.00 kJ/mol 42
10th Energy Level
5,730.00 kJ/mol 61
11th Energy Level
5,730.00 kJ/mol 65
12th Energy Level
5,730.00 kJ/mol 67
13th Energy Level
5,730.00 kJ/mol 55
14th Energy Level
5,730.00 kJ/mol 43
15th Energy Level
57,300.00 kJ/mol 56
16th Energy Level
57,300.00 kJ/mol 44
17th Energy Level
573.30 kJ/mol 70
18th Energy Level
5,730.00 kJ/mol 58
19th Energy Level
573.30 kJ/mol 68
20th Energy Level
573.00 kJ/mol 62
21st Energy Level
5,730.00 kJ/mol 23
22nd Energy Level
573.00 kJ/mol 57
23rd Energy Level
573.00 kJ/mol 72
24th Energy Level
573.00 kJ/mol 59
25th Energy Level
573.00 kJ/mol 59
26th Energy Level
573.00 kJ/mol 66
27th Energy Level
573.00 kJ/mol 62
28th Energy Level
573.00 kJ/mol 66
29th Energy Level
573.00 kJ/mol 68
30th Energy Level
573.00 kJ/mol 63
Electrochemical Equivalent
2.02 g/amp-hr 33
Electron Work Function
4.30 eV 25
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Atomic
Atomic Number
66 50
Electron Configuration
[Xe] 4f9 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Crystal Lattice
HCP-Crystal-Structure-of-Dysprosium.jpg#100
Atom
Number of Protons
66 49
Number of Neutrons
96 36
Number of Electrons
66 49
Radius of an Atom
Atomic Radius
178.00 pm 18
Covalent Radius
192.00 pm 17
Van der Waals Radius
229.00 pm 25
Atomic Weight
162.50 amu 45
Atomic Volume
19.00 cm3/mol 35
Adjacent Atomic Numbers
Previous Element
77
Next Element
79
Valence Electron Potential
47.40 (-eV) 33
Lattice Constant
359.30 pm 41
Lattice Angles
π/2, π/2, 2 π/3
Lattice C/A Ratio
1.57 38
Mechanical
Density
Density At Room Temperature
8.54 g/cm3 54
Density When Liquid (at m.p.)
8.37 g/cm3 52
Tensile Strength
120.00 MPa 27
Viscosity
0.00 25
Vapor Pressure
Vapor Pressure at 1000 K
0.00 (Pa) 22
Vapor Pressure at 2000 K
0.00 (Pa) 30
Elasticity properties
Shear Modulus
24.70 GPa 39
Bulk Modulus
40.50 GPa 36
Young's Modulus
61.40 GPa 35
Poisson Ratio
0.25 25
Other Mechanical Properties
Sectile
Magnetic
Magnetic Characteristics
Specific Gravity
8.55 54
Magnetic Ordering
Paramagnetic
Permeability
0.00 H/m 17
Susceptibility
0.00 24
Electrical Properties
Electrical Property
Conductor
Resistivity
926.00 nΩ·m 2
Electrical Conductivity
0.01 106/cm Ω 61
Electron Affinity
50.00 kJ/mol 26
Thermal
Specific Heat
0.17 J/(kg K) 35
Molar Heat Capacity
27.70 J/mol·K 17
Thermal Conductivity
10.70 W/m·K 66
Critical Temperature
1,680.00 K 36
Thermal Expansion
9.90 µm/(m·K) 53
Enthalpy
Enthalpy of Vaporization
230.00 kJ/mol 60
Enthalpy of Fusion
11.05 kJ/mol 38
Enthalpy of Atomization
301.00 kJ/mol 47
Standard Molar Entropy
75.60 J/mol.K 7
Summary >>
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