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Yttrium vs Gadolinium


Gadolinium vs Yttrium


Periodic Table

Symbol
Y   
Gd   

Group Number
3   
15
0   
18

Period Number
5   
6   

Block
d block   
f block   

Element Family
Transition Metal   
Lanthanide   

CAS Number
7440655   
25
7440542   
33

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
  

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

History
  
  

Who Discovered
Johan Gadolin   
Jean Charles Galissard de Marignac   

Discovery
In 1794   
In 1880   

Abundance
  
  

Abundance In Universe
7 * 10-7 %   
17
2 * 10-7 %   
22

Abundance In Sun
~0.0000001 %   
26
~0.0000002 %   
25

Abundance In Meteorites
0.00 %   
21
0.00 %   
34

Abundance In Earth's Crust
0.00 %   
22
0.00 %   
30

Abundance In Oceans
0.00 %   
25
0.00 %   
38

Uses

Uses & Benefits
  • Yttrium metal is used in different alloys, as it increases the strength of aluminum Magnesium alloy. It is used for radar microwave filter.
  • It is also used as a catalyst in ethene polymerisation.
  
  • 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).
  

Industrial Uses
Electrical Industry, Electronic Industry   
Aerospace Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Highly Toxic   
Non Toxic   

Present in Human Body
Yes   
No   

In Blood
0.00 Blood/mg dm-3   
26
Not Available   

In Bone
0.07 p.p.m.   
25
Not Available   

Physical Properties

Melting Point
1,523.00 °C   
27
1,311.00 °C   
35

Boiling Point
3,337.00 °C   
21
3,233.00 °C   
25

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery White   

Luster
NA   
Metallic   

Hardness
  
  

Brinell Hardness
589.00 MPa   
22
Not Available   

Vickers Hardness
Not Available   
510.00 MPa   
22

Speed of Sound
3,300.00 m/s   
23
2,680.00 m/s   
34

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
Y   
Gd   

Isotopes
  
  

Known Isotopes
19   
20
26   
13

Electronegativity
  
  

Pauling Electronegativity
1.22   
38
1.20   
39

Sanderson Electronegativity
0.65   
29
Not Available   

Allred Rochow Electronegativity
1.11   
29
1.11   
29

Allen Electronegativity
1.12   
38
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.78   
16
2.80   
15

Ionization Energies
  
  

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

2nd Energy Level
1,180.00 kJ/mol   
99+
1,170.00 kJ/mol   
99+

3rd Energy Level
1,980.00 kJ/mol   
99+
1,990.00 kJ/mol   
99+

4th Energy Level
5,847.00 kJ/mol   
10
4,250.00 kJ/mol   
30

5th Energy Level
7,430.00 kJ/mol   
14
Not Available   

6th Energy Level
8,970.00 kJ/mol   
17
Not Available   

7th Energy level
11,190.00 kJ/mol   
18
Not Available   

8th Energy Level
12,450.00 kJ/mol   
18
Not Available   

9th Energy Level
14,110.00 kJ/mol   
19
Not Available   

10th Energy Level
18,400.00 kJ/mol   
17
Not Available   

11th Energy Level
19,900.00 kJ/mol   
18
Not Available   

12th Energy Level
36,090.00 kJ/mol   
5
Not Available   

Electrochemical Equivalent
1.11 g/amp-hr   
99+
1.96 g/amp-hr   
32

Electron Work Function
3.10 eV   
35
3.10 eV   
35

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

Atomic Properties

Atomic Number
39   
99+
64   
99+

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

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

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

Atom
  
  

Number of Protons
39   
99+
64   
99+

Number of Neutrons
50   
99+
93   
37

Number of Electrons
39   
99+
64   
99+

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
180.00 pm   
14

Covalent Radius
190.00 pm   
18
196.00 pm   
14

Van der Waals Radius
200.00 pm   
28
237.00 pm   
15

Atomic Weight
88.91 amu   
99+
47.87 amu   
99+

Atomic Volume
19.80 cm3/mol   
21
19.90 cm3/mol   
20

Adjacent Atomic Numbers
  
  

Previous Element
Strontium
  
Europium
  

Next Element
Zirconium
  
Terbium
  

Valence Electron Potential
48.00 (-eV)   
30
46.10 (-eV)   
34

Lattice Constant
364.74 pm   
31
363.60 pm   
32

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

Lattice C/A Ratio
1.57   
16
1.59   
9

Mechanical Properties

Density
  
  

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

Density When Liquid (at m.p.)
4.24 g/cm3   
99+
7.40 g/cm3   
31

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
32
0.00 (Pa)   
30

Vapor Pressure at 2000 K
4.27 (Pa)   
10
7.39 (Pa)   
9

Elasticity properties
  
  

Shear Modulus
25.60 GPa   
30
21.80 GPa   
33

Bulk Modulus
41.20 GPa   
30
37.90 GPa   
34

Young's Modulus
63.50 GPa   
32
54.80 GPa   
35

Poisson Ratio
0.24   
26
0.26   
23

Other Mechanical Properties
Ductile   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
4.47   
99+
7.90   
40

Magnetic Ordering
Paramagnetic   
Ferromagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
596.00 nΩ·m   
8
1.31 nΩ·m   
99+

Electrical Conductivity
0.02 106/cm Ω   
99+
0.01 106/cm Ω   
99+

Electron Affinity
29.60 kJ/mol   
30
50.00 kJ/mol   
21

Thermal Properties

Specific Heat
0.30 J/(kg K)   
18
0.23 J/(kg K)   
27

Molar Heat Capacity
26.53 J/mol·K   
27
37.03 J/mol·K   
2

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

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
10.60 µm/(m·K)   
37
9.40 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
393.00 kJ/mol   
18
359.40 kJ/mol   
21

Enthalpy of Fusion
17.15 kJ/mol   
16
10.05 kJ/mol   
36

Enthalpy of Atomization
418.00 kJ/mol   
18
352.00 kJ/mol   
27

Standard Molar Entropy
44.40 J/mol.K   
33
68.10 J/mol.K   
16

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