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Lutetium vs Zirconium


Zirconium vs Lutetium


Periodic Table

Symbol
Lu   
Zr   

Group Number
Not Available   
4   
14

Period Number
6   
5   

Block
f block   
d block   

Element Family
Lanthanide   
Transition Metal   

CAS Number
7439943   
99+
7440677   
23

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  

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

History
  
  

Who Discovered
Georges Urbain and Carl Auer von Welsbach   
Martin Heinrich Klaproth   

Discovery
In 1906   
In 1789   

Abundance
  
  

Abundance In Universe
1 * 10-8 %   
30
5 * 10-6 %   
13

Abundance In Sun
~0.0000001 %   
26
~0.000004 %   
16

Abundance In Meteorites
0.00 %   
99+
0.00 %   
17

Abundance In Earth's Crust
0.00 %   
99+
0.01 %   
14

Abundance In Oceans
0.00 %   
99+
0.00 %   
23

Abundance In Humans
Not Available   
0.00 %   
15

Uses

Uses & Benefits
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  
  • As this metal does not absorb neutrons; It is used in nuclear power stations.
  • Its oxide is used in ultra strong ceramics. It is also used in manufacturing Crucibles.
  

Industrial Uses
NA   
Aerospace Industry, Ammunition Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys, Nuclear Research, Research Purposes   

Biological Properties
  
  

Toxicity
Low Toxic   
NA   

Present in Human Body
No   
Yes   

In Blood
Not Available   
0.01 Blood/mg dm-3   
21

In Bone
Not Available   
0.10 p.p.m.   
23

Physical Properties

Melting Point
1,652.00 °C   
19
1,852.00 °C   
15

Boiling Point
3,402.00 °C   
19
4,377.00 °C   
11

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery White   

Luster
Metallic   
Lustrous   

Hardness
  
  

Mohs Hardness
Not Available   
5.00   
8

Brinell Hardness
893.00 MPa   
10
638.00 MPa   
19

Vickers Hardness
1,160.00 MPa   
8
820.00 MPa   
15

Speed of Sound
Not Available   
3,800.00 m/s   
20

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
Lu   
Zr   

Isotopes
  
  

Known Isotopes
35   
4
24   
15

Electronegativity
  
  

Pauling Electronegativity
1.27   
34
1.33   
30

Sanderson Electronegativity
Not Available   
0.90   
25

Allred Rochow Electronegativity
1.14   
28
1.22   
26

Allen Electronegativity
Not Available   
1.32   
34

Electropositivity
  
  

Pauling Electropositivity
2.73   
20
2.67   
24

Ionization Energies
  
  

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

2nd Energy Level
1,340.00 kJ/mol   
99+
1,270.00 kJ/mol   
99+

3rd Energy Level
2,022.30 kJ/mol   
99+
2,218.00 kJ/mol   
99+

4th Energy Level
4,370.00 kJ/mol   
28
3,313.00 kJ/mol   
99+

5th Energy Level
6,445.00 kJ/mol   
21
7,752.00 kJ/mol   
10

6th Energy Level
Not Available   
9,500.00 kJ/mol   
15

Electrochemical Equivalent
2.18 g/amp-hr   
23
0.85 g/amp-hr   
99+

Electron Work Function
3.30 eV   
33
4.05 eV   
26

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

Atomic Properties

Atomic Number
71   
99+
40   
99+

Electron Configuration
[Xe] 6s2 4f14 5d1   
[Kr] 4d2 5s2   

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

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

Atom
  
  

Number of Protons
71   
99+
40   
99+

Number of Neutrons
104   
30
51   
99+

Number of Electrons
71   
99+
40   
99+

Radius of an Atom
  
  

Atomic Radius
174.00 pm   
20
160.00 pm   
27

Covalent Radius
187.00 pm   
20
175.00 pm   
23

Van der Waals Radius
221.00 pm   
22
200.00 pm   
28

Atomic Weight
174.97 amu   
40
91.22 amu   
99+

Atomic Volume
17.78 cm3/mol   
30
14.10 cm3/mol   
36

Adjacent Atomic Numbers
  
  

Previous Element
Ytterbium
  
Yttrium
  

Next Element
Hafnium
  
Niobium
  

Valence Electron Potential
50.90 (-eV)   
26
80.00 (-eV)   
18

Lattice Constant
350.31 pm   
99+
323.20 pm   
99+

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

Lattice C/A Ratio
1.59   
10
1.59   
8

Mechanical Properties

Density
  
  

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

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

Tensile Strength
Not Available   
330.00 MPa   
12

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
33
Not Available   

Vapor Pressure at 2000 K
3.18 (Pa)   
11
0.00 (Pa)   
21

Elasticity properties
  
  

Shear Modulus
27.20 GPa   
26
33.00 GPa   
20

Bulk Modulus
47.60 GPa   
23
91.10 GPa   
17

Young's Modulus
68.60 GPa   
30
88.00 GPa   
22

Poisson Ratio
0.26   
21
0.34   
10

Other Mechanical Properties
NA   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.84   
29
6.51   
99+

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
582.00 nΩ·m   
9
421.00 nΩ·m   
11

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

Electron Affinity
50.00 kJ/mol   
21
41.10 kJ/mol   
27

Thermal Properties

Specific Heat
0.15 J/(kg K)   
36
0.27 J/(kg K)   
19

Molar Heat Capacity
26.86 J/mol·K   
24
25.36 J/mol·K   
99+

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

Critical Temperature
Not Available   
Not Available   

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

Enthalpy
  
  

Enthalpy of Vaporization
355.90 kJ/mol   
22
581.60 kJ/mol   
9

Enthalpy of Fusion
18.70 kJ/mol   
13
20.90 kJ/mol   
11

Enthalpy of Atomization
398.00 kJ/mol   
20
598.00 kJ/mol   
10

Standard Molar Entropy
51.00 J/mol.K   
30
39.00 J/mol.K   
39

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