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Lutetium Neodymium Comparison


Neodymium Lutetium comparison


Periodic Table

Symbol
Lu   
Nd   

Group Number
Not Available   
1   
17

Period Number
6   
6   

Block
f block   
f block   

Element Family
Lanthanide   
Lanthanide   

CAS Number
7439943   
99+
7440008   
99+

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.
  
  • Neodymium is not found free in nature, hence it is not a native metal.
  • Neodymium metal found in minerals like Monazite and Bastnaesite.
  

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

History
  
  

Who Discovered
Georges Urbain and Carl Auer von Welsbach   
Carl Auer von Welsbach   

Discovery
In 1906   
In 1885   

Abundance
  
  

Abundance In Universe
1 * 10-8 %   
30
1 * 10-6 %   
16

Abundance In Sun
~0.0000001 %   
26
~0.0000003 %   
24

Abundance In Meteorites
0.00 %   
99+
0.00 %   
30

Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
20

Abundance In Oceans
0.00 %   
99+
0.00 %   
30

Uses

Uses & Benefits
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  
  • Neodymium-Iron-boron alloy is used to make permanent magnets.
  • It is used in microphones, Mp3 player, loudspeakers, mobile phones, etc.
  

Industrial Uses
NA   
Aerospace Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Low Toxic   
Non Toxic   

Present in Human Body
No   
No   

Physical Properties

Melting Point
1,652.00 °C   
19
1,010.00 °C   
99+

Boiling Point
3,402.00 °C   
19
3,127.00 °C   
28

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery White   

Luster
Metallic   
Metallic   

Hardness
  
  

Brinell Hardness
893.00 MPa   
10
265.00 MPa   
35

Vickers Hardness
1,160.00 MPa   
8
345.00 MPa   
27

Speed of Sound
Not Available   
2,330.00 m/s   
38

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   
Nd   

Isotopes
  
  

Known Isotopes
35   
4
30   
9

Electronegativity
  
  

Pauling Electronegativity
1.27   
34
1.14   
99+

Allred Rochow Electronegativity
1.14   
28
1.07   
32

Electropositivity
  
  

Pauling Electropositivity
2.73   
20
2.86   
13

Ionization Energies
  
  

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

2nd Energy Level
1,340.00 kJ/mol   
99+
1,040.00 kJ/mol   
99+

3rd Energy Level
2,022.30 kJ/mol   
99+
2,130.00 kJ/mol   
99+

4th Energy Level
4,370.00 kJ/mol   
28
3,900.00 kJ/mol   
99+

5th Energy Level
6,445.00 kJ/mol   
21
Not Available   

Electrochemical Equivalent
2.18 g/amp-hr   
23
1.79 g/amp-hr   
37

Electron Work Function
3.30 eV   
33
3.20 eV   
34

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

Atomic Properties

Atomic Number
71   
99+
60   
99+

Electron Configuration
[Xe] 6s2 4f14 5d1   
[Xe] 4f4 6s2   

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

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
DHCP-Crystal-Structure-of-Neodymium.jpg#100   

Atom
  
  

Number of Protons
71   
99+
60   
99+

Number of Neutrons
104   
30
84   
40

Number of Electrons
71   
99+
60   
99+

Radius of an Atom
  
  

Atomic Radius
174.00 pm   
20
181.00 pm   
13

Covalent Radius
187.00 pm   
20
201.00 pm   
10

Van der Waals Radius
221.00 pm   
22
229.00 pm   
20

Atomic Weight
174.97 amu   
40
144.24 amu   
99+

Atomic Volume
17.78 cm3/mol   
30
20.60 cm3/mol   
18

Adjacent Atomic Numbers
  
  

Previous Element
Ytterbium
  

Next Element
Hafnium
  
Promethium
  

Valence Electron Potential
50.90 (-eV)   
26
43.40 (-eV)   
99+

Lattice Constant
350.31 pm   
99+
365.80 pm   
30

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

Lattice C/A Ratio
1.59   
10
1.61   
4

Mechanical Properties

Density
  
  

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

Density When Liquid (at m.p.)
9.30 g/cm3   
22
6.89 g/cm3   
36

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
33
0.00 (Pa)   
21

Vapor Pressure at 2000 K
3.18 (Pa)   
11
101.00 (Pa)   
2

Elasticity properties
  
  

Shear Modulus
27.20 GPa   
26
16.30 GPa   
38

Bulk Modulus
47.60 GPa   
23
31.80 GPa   
37

Young's Modulus
68.60 GPa   
30
41.40 GPa   
40

Poisson Ratio
0.26   
21
0.28   
16

Other Mechanical Properties
NA   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.84   
29
7.00   
99+

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
NA   

Resistivity
582.00 nΩ·m   
9
643.00 nΩ·m   
6

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

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

Thermal Properties

Specific Heat
0.15 J/(kg K)   
36
0.19 J/(kg K)   
32

Molar Heat Capacity
26.86 J/mol·K   
24
27.45 J/mol·K   
17

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

Critical Temperature
Not Available   
Not Available   

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

Enthalpy
  
  

Enthalpy of Vaporization
355.90 kJ/mol   
22
273.00 kJ/mol   
34

Enthalpy of Fusion
18.70 kJ/mol   
13
7.14 kJ/mol   
99+

Enthalpy of Atomization
398.00 kJ/mol   
20
322.00 kJ/mol   
32

Standard Molar Entropy
51.00 J/mol.K   
30
71.50 J/mol.K   
13

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