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Lawrencium vs Dysprosium

Lawrencium
Dysprosium
Dysprosium vs Lawrencium


Periodic Table
Symbol
Lr   
Dy   
Group Number
Not Available   
Not Available   
Period Number
7   
6   
Block
d block   
f block   
Element Family
Actinide   
Lanthanide   
CAS Number
22537195   
15
7429916   
99+
Space Group Name
Not Available   
P63/mmc   
Space Group Number
Not Available   
194.00   
5
Facts
Interesting Facts
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  
  • Dysprosium acts stable in air at room temperature.
  • Dysprosium behaves very much like paramagnetic metal.
  
Sources
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research   
Lecoq de Boisbaudran   
Discovery
In 1961–1971   
In 1886   
Abundance
  
  
Abundance In Universe
Not Available   
2 * 10-7 %   
22
Abundance In Sun
~-9999 %   
~0.0000002 %   
25
Abundance In Meteorites
Not Available   
0.00 %   
33
Abundance In Earth's Crust
Not Available   
0.00 %   
28
Abundance In Oceans
Not Available   
0.00 %   
35
Uses
Uses & Benefits
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  
  • 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
NA   
NA   
Medical Uses
NA   
NA   
Other Uses
NA   
Alloys, Nuclear Research   
Biological Properties
  
  
Toxicity
Unknown   
Mildly Toxic   
Present in Human Body
No   
No   
In Blood
0.00 Blood/mg dm-3   
37
Not Available   
In Bone
0.00 p.p.m.   
36
Not Available   
Physical Properties
Melting Point
1,627.00 °C   
20
1,407.00 °C   
32
Boiling Point
Not Available   
2,562.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Silvery White   
Luster
Unknown Luster   
Metallic   
Hardness
  
  
Brinell Hardness
Not Available   
500.00 MPa   
23
Vickers Hardness
Not Available   
540.00 MPa   
20
Speed of Sound
Not Available   
2,710.00 m/s   
33
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Lr   
Dy   
Isotopes
  
  
Known Isotopes
10   
28
29   
10
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.22   
38
Allred Rochow Electronegativity
Not Available   
1.10   
30
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.78   
16
Ionization Energies
  
  
1st Energy Level
470.00 kJ/mol   
99+
573.00 kJ/mol   
99+
2nd Energy Level
1,428.00 kJ/mol   
99+
1,130.00 kJ/mol   
99+
3rd Energy Level
2,228.00 kJ/mol   
99+
2,200.00 kJ/mol   
99+
4th Energy Level
4,910.00 kJ/mol   
21
3,990.00 kJ/mol   
37
Electrochemical Equivalent
3.23 g/amp-hr   
11
2.02 g/amp-hr   
29
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
103   
15
66   
99+
Electron Configuration
[Rn] 5f14 7s2 7p1   
[Xe] 4f9 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Dysprosium.jpg#100   
Atom
  
  
Number of Protons
103   
15
66   
99+
Number of Neutrons
157   
7
96   
35
Number of Electrons
103   
15
66   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
178.00 pm   
16
Covalent Radius
Not Available   
192.00 pm   
17
Van der Waals Radius
246.00 pm   
8
229.00 pm   
20
Atomic Weight
266.00 amu   
12
162.50 amu   
99+
Atomic Volume
Not Available   
19.00 cm3/mol   
23
Adjacent Atomic Numbers
  
  
Previous Element
Nobelium
  
Terbium
  
Next Element
Rutherfordium
  
Holmium
  
Valence Electron Potential
Not Available   
47.40 (-eV)   
32
Lattice Constant
Not Available   
359.30 pm   
37
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
15
Mechanical Properties
Density
  
  
Density At Room Temperature
Not Available   
8.54 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
8.37 g/cm3   
25
Tensile Strength
Not Available   
120.00 MPa   
15
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Elasticity properties
  
  
Shear Modulus
Not Available   
24.70 GPa   
31
Bulk Modulus
Not Available   
40.50 GPa   
31
Young's Modulus
Not Available   
61.40 GPa   
33
Poisson Ratio
0.32   
12
0.25   
25
Other Mechanical Properties
Unknown   
Sectile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
8.55   
38
Magnetic Ordering
Unknown   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Unknown   
Conductor   
Resistivity
Not Available   
926.00 nΩ·m   
2
Electrical Conductivity
Not Available   
0.01 106/cm Ω   
99+
Electron Affinity
Not Available   
50.00 kJ/mol   
21
Thermal Properties
Specific Heat
Not Available   
0.17 J/(kg K)   
34
Molar Heat Capacity
Not Available   
27.70 J/mol·K   
14
Thermal Conductivity
Not Available   
10.70 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
9.90 µm/(m·K)   
40
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
230.00 kJ/mol   
39
Enthalpy of Fusion
Not Available   
11.05 kJ/mol   
32
Enthalpy of Atomization
Not Available   
301.00 kJ/mol   
36
Standard Molar Entropy
Not Available   
75.60 J/mol.K   
7
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