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Gadolinium Dysprosium Comparison


Dysprosium Gadolinium comparison


Periodic Table

Symbol
Gd   
Dy   

Group Number
0   
18
Not Available   

Period Number
6   
6   

Block
f block   
f block   

Element Family
Lanthanide   
Lanthanide   

CAS Number
7440542   
33
7429916   
99+

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
  • Dysprosium acts stable in air at room temperature.
  • Dysprosium behaves very much like paramagnetic metal.
  

Sources
Found in Minerals, Mining   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Jean Charles Galissard de Marignac   
Lecoq de Boisbaudran   

Discovery
In 1880   
In 1886   

Abundance
  
  

Abundance In Universe
2 * 10-7 %   
22
2 * 10-7 %   
22

Abundance In Sun
~0.0000002 %   
25
~0.0000002 %   
25

Abundance In Meteorites
0.00 %   
34
0.00 %   
33

Abundance In Earth's Crust
0.00 %   
30
0.00 %   
28

Abundance In Oceans
0.00 %   
38
0.00 %   
35

Uses

Uses & Benefits
  • Its alloys are also used in making Magnets, electronic components and Data storage devices.
  • Compound of Gadolinium metal are used in magnetic resonance imaging (MRI).
  
  • 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
Aerospace Industry, Electrical Industry, Electronic Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys, Nuclear Research   

Biological Properties
  
  

Toxicity
Non Toxic   
Mildly Toxic   

Present in Human Body
No   
No   

Physical Properties

Melting Point
1,311.00 °C   
35
1,407.00 °C   
32

Boiling Point
3,233.00 °C   
25
2,562.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery White   

Luster
Metallic   
Metallic   

Hardness
  
  

Brinell Hardness
Not Available   
500.00 MPa   
23

Vickers Hardness
510.00 MPa   
22
540.00 MPa   
20

Speed of Sound
2,680.00 m/s   
34
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
Gd   
Dy   

Isotopes
  
  

Known Isotopes
26   
13
29   
10

Electronegativity
  
  

Pauling Electronegativity
1.20   
39
1.22   
38

Allred Rochow Electronegativity
1.11   
29
1.10   
30

Electropositivity
  
  

Pauling Electropositivity
2.80   
15
2.78   
16

Ionization Energies
  
  

1st Energy Level
593.40 kJ/mol   
99+
573.00 kJ/mol   
99+

2nd Energy Level
1,170.00 kJ/mol   
99+
1,130.00 kJ/mol   
99+

3rd Energy Level
1,990.00 kJ/mol   
99+
2,200.00 kJ/mol   
99+

4th Energy Level
4,250.00 kJ/mol   
30
3,990.00 kJ/mol   
37

Electrochemical Equivalent
1.96 g/amp-hr   
32
2.02 g/amp-hr   
29

Electron Work Function
3.10 eV   
35
Not Available   

Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   

Atomic Properties

Atomic Number
64   
99+
66   
99+

Electron Configuration
[Xe] 4f7 5d1 6s2   
[Xe] 4f9 6s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100   
HCP-Crystal-Structure-of-Dysprosium.jpg#100   

Atom
  
  

Number of Protons
64   
99+
66   
99+

Number of Neutrons
93   
37
96   
35

Number of Electrons
64   
99+
66   
99+

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
178.00 pm   
16

Covalent Radius
196.00 pm   
14
192.00 pm   
17

Van der Waals Radius
237.00 pm   
15
229.00 pm   
20

Atomic Weight
47.87 amu   
99+
162.50 amu   
99+

Atomic Volume
19.90 cm3/mol   
20
19.00 cm3/mol   
23

Adjacent Atomic Numbers
  
  

Previous Element
Europium
  
Terbium
  

Next Element
Terbium
  
Holmium
  

Valence Electron Potential
46.10 (-eV)   
34
47.40 (-eV)   
32

Lattice Constant
363.60 pm   
32
359.30 pm   
37

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
1.59   
9
1.57   
15

Mechanical Properties

Density
  
  

Density At Room Temperature
7.90 g/cm3   
99+
8.54 g/cm3   
99+

Density When Liquid (at m.p.)
7.40 g/cm3   
31
8.37 g/cm3   
25

Tensile Strength
Not Available   
120.00 MPa   
15

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
30
Not Available   

Vapor Pressure at 2000 K
7.39 (Pa)   
9
Not Available   

Elasticity properties
  
  

Shear Modulus
21.80 GPa   
33
24.70 GPa   
31

Bulk Modulus
37.90 GPa   
34
40.50 GPa   
31

Young's Modulus
54.80 GPa   
35
61.40 GPa   
33

Poisson Ratio
0.26   
23
0.25   
25

Other Mechanical Properties
Ductile, Malleable   
Sectile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
7.90   
40
8.55   
38

Magnetic Ordering
Ferromagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
1.31 nΩ·m   
99+
926.00 nΩ·m   
2

Electrical Conductivity
0.01 106/cm Ω   
99+
0.01 106/cm Ω   
99+

Electron Affinity
50.00 kJ/mol   
21
50.00 kJ/mol   
21

Thermal Properties

Specific Heat
0.23 J/(kg K)   
27
0.17 J/(kg K)   
34

Molar Heat Capacity
37.03 J/mol·K   
2
27.70 J/mol·K   
14

Thermal Conductivity
10.60 W/m·K   
99+
10.70 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
9.40 µm/(m·K)   
99+
9.90 µm/(m·K)   
40

Enthalpy
  
  

Enthalpy of Vaporization
359.40 kJ/mol   
21
230.00 kJ/mol   
39

Enthalpy of Fusion
10.05 kJ/mol   
36
11.05 kJ/mol   
32

Enthalpy of Atomization
352.00 kJ/mol   
27
301.00 kJ/mol   
36

Standard Molar Entropy
68.10 J/mol.K   
16
75.60 J/mol.K   
7

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