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Curium vs Dysprosium


Dysprosium vs Curium


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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