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Curium Dysprosium Comparison

Curium
Dysprosium
Dysprosium Curium comparison


Periodic Table
Symbol
Cm   
Dy   
Group Number
Not Available   
Not Available   
Period Number
7   
6   
Block
f block   
f block   
Element Family
Actinide   
Lanthanide   
CAS Number
7440519   
36
7429916   
99+
Space Group Name
Not Available   
P63/mmc   
Space Group Number
Not Available   
194.00   
5
Facts
Interesting Facts
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
  
  • Dysprosium acts stable in air at room temperature.
  • Dysprosium behaves very much like paramagnetic metal.
  
Sources
Bombarding Plutonium with Helium Ions   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso   
Lecoq de Boisbaudran   
Discovery
In 1944   
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
  • Curium metal is used to provide power to electrical equipment for space missions.
  
  • 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
Research Purposes   
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
1,340.00 °C   
34
1,407.00 °C   
32
Boiling Point
3,110.00 °C   
30
2,562.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Silvery White   
Luster
Metallic   
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
Cm   
Dy   
Isotopes
  
  
Known Isotopes
15   
24
29   
10
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
1.22   
38
Allred Rochow Electronegativity
1.20   
27
1.10   
30
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.78   
16
Ionization Energies
  
  
1st Energy Level
581.00 kJ/mol   
99+
573.00 kJ/mol   
99+
2nd Energy Level
1,196.00 kJ/mol   
99+
1,130.00 kJ/mol   
99+
3rd Energy Level
2,026.00 kJ/mol   
99+
2,200.00 kJ/mol   
99+
4th Energy Level
3,550.00 kJ/mol   
99+
3,990.00 kJ/mol   
37
Electrochemical Equivalent
3.07 g/amp-hr   
16
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
96   
22
66   
99+
Electron Configuration
[Rn] 5f7 6d1 7s2   
[Xe] 4f9 6s2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
DHCP-Crystal-Structure-of-Curium.jpg#100   
HCP-Crystal-Structure-of-Dysprosium.jpg#100   
Atom
  
  
Number of Protons
96   
22
66   
99+
Number of Neutrons
151   
10
96   
35
Number of Electrons
96   
22
66   
99+
Radius of an Atom
  
  
Atomic Radius
174.00 pm   
20
178.00 pm   
16
Covalent Radius
169.00 pm   
26
192.00 pm   
17
Van der Waals Radius
200.00 pm   
28
229.00 pm   
20
Atomic Weight
247.00 amu   
18
162.50 amu   
99+
Atomic Volume
18.28 cm3/mol   
26
19.00 cm3/mol   
23
Adjacent Atomic Numbers
  
  
Previous Element
Americium
  
Terbium
  
Next Element
Berkelium
  
Holmium
  
Valence Electron Potential
44.50 (-eV)   
38
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
13.51 g/cm3   
25
8.54 g/cm3   
99+
Density When Liquid (at m.p.)
13.85 g/cm3   
10
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
Not Available   
0.25   
25
Other Mechanical Properties
Unknown   
Sectile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
13.51   
17
8.55   
38
Magnetic Ordering
Antiferromagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Unknown   
Conductor   
Resistivity
1.25 nΩ·m   
99+
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
15.00 kJ/mol   
21
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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