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Yttrium Lutetium Comparison


Lutetium Yttrium comparison


Periodic Table

Symbol
Y   
Lu   

Group Number
3   
15
Not Available   

Period Number
5   
6   

Block
d block   
f block   

Element Family
Transition Metal   
Lanthanide   

CAS Number
7440655   
25
7439943   
99+

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.
  
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  

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

History
  
  

Who Discovered
Johan Gadolin   
Georges Urbain and Carl Auer von Welsbach   

Discovery
In 1794   
In 1906   

Abundance
  
  

Abundance In Universe
7 * 10-7 %   
17
1 * 10-8 %   
30

Abundance In Sun
~0.0000001 %   
26
~0.0000001 %   
26

Abundance In Meteorites
0.00 %   
21
0.00 %   
99+

Abundance In Earth's Crust
0.00 %   
22
0.00 %   
99+

Abundance In Oceans
0.00 %   
25
0.00 %   
99+

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.
  
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  

Industrial Uses
Electrical Industry, Electronic Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Highly Toxic   
Low 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
1,652.00 °C   
19

Boiling Point
3,337.00 °C   
21
3,402.00 °C   
19

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery White   

Luster
NA   
Metallic   

Hardness
  
  

Brinell Hardness
589.00 MPa   
22
893.00 MPa   
10

Vickers Hardness
Not Available   
1,160.00 MPa   
8

Speed of Sound
3,300.00 m/s   
23
Not Available   

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   
Lu   

Isotopes
  
  

Known Isotopes
19   
20
35   
4

Electronegativity
  
  

Pauling Electronegativity
1.22   
38
1.27   
34

Sanderson Electronegativity
0.65   
29
Not Available   

Allred Rochow Electronegativity
1.11   
29
1.14   
28

Allen Electronegativity
1.12   
38
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.78   
16
2.73   
20

Ionization Energies
  
  

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

2nd Energy Level
1,180.00 kJ/mol   
99+
1,340.00 kJ/mol   
99+

3rd Energy Level
1,980.00 kJ/mol   
99+
2,022.30 kJ/mol   
99+

4th Energy Level
5,847.00 kJ/mol   
10
4,370.00 kJ/mol   
28

5th Energy Level
7,430.00 kJ/mol   
14
6,445.00 kJ/mol   
21

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+
2.18 g/amp-hr   
23

Electron Work Function
3.10 eV   
35
3.30 eV   
33

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

Atomic Properties

Atomic Number
39   
99+
71   
99+

Electron Configuration
[Kr] 4d1 5s2   
[Xe] 6s2 4f14 5d1   

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

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

Atom
  
  

Number of Protons
39   
99+
71   
99+

Number of Neutrons
50   
99+
104   
30

Number of Electrons
39   
99+
71   
99+

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
174.00 pm   
20

Covalent Radius
190.00 pm   
18
187.00 pm   
20

Van der Waals Radius
200.00 pm   
28
221.00 pm   
22

Atomic Weight
88.91 amu   
99+
174.97 amu   
40

Atomic Volume
19.80 cm3/mol   
21
17.78 cm3/mol   
30

Adjacent Atomic Numbers
  
  

Previous Element
Strontium
  
Ytterbium
  

Next Element
Zirconium
  
Hafnium
  

Valence Electron Potential
48.00 (-eV)   
30
50.90 (-eV)   
26

Lattice Constant
364.74 pm   
31
350.31 pm   
99+

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   
10

Mechanical Properties

Density
  
  

Density At Room Temperature
4.47 g/cm3   
99+
9.84 g/cm3   
38

Density When Liquid (at m.p.)
4.24 g/cm3   
99+
9.30 g/cm3   
22

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)   
33

Vapor Pressure at 2000 K
4.27 (Pa)   
10
3.18 (Pa)   
11

Elasticity properties
  
  

Shear Modulus
25.60 GPa   
30
27.20 GPa   
26

Bulk Modulus
41.20 GPa   
30
47.60 GPa   
23

Young's Modulus
63.50 GPa   
32
68.60 GPa   
30

Poisson Ratio
0.24   
26
0.26   
21

Other Mechanical Properties
Ductile   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
4.47   
99+
9.84   
29

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
596.00 nΩ·m   
8
582.00 nΩ·m   
9

Electrical Conductivity
0.02 106/cm Ω   
99+
0.02 106/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
0.15 J/(kg K)   
36

Molar Heat Capacity
26.53 J/mol·K   
27
26.86 J/mol·K   
24

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

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
10.60 µm/(m·K)   
37
9.90 µm/(m·K)   
40

Enthalpy
  
  

Enthalpy of Vaporization
393.00 kJ/mol   
18
355.90 kJ/mol   
22

Enthalpy of Fusion
17.15 kJ/mol   
16
18.70 kJ/mol   
13

Enthalpy of Atomization
418.00 kJ/mol   
18
398.00 kJ/mol   
20

Standard Molar Entropy
44.40 J/mol.K   
33
51.00 J/mol.K   
30

Summary >>
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