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Neodymium Lithium Comparison


Lithium Neodymium comparison


Periodic Table

Symbol
Nd   
Li   

Group Number
1   
17
1   
17

Period Number
6   
2   

Block
f block   
s block   

Element Family
Lanthanide   
Alkali   

CAS Number
7440008   
99+
7439932   
99+

Space Group Name
P63/mmc   
Im_ 3m   

Space Group Number
194.00   
5
229.00   
1

Facts

Interesting Facts
  • Neodymium is not found free in nature, hence it is not a native metal.
  • Neodymium metal found in minerals like Monazite and Bastnaesite.
  
  • Heat capacity of Lithium is very high.
  • Lithium inflammable and highly explosive metal, hence it has to be stored properly.
  

Sources
Found in Minerals, Mining   
Found in Minerals, Mining   

History
  
  

Who Discovered
Carl Auer von Welsbach   
Johan August Arfwedson   

Discovery
In 1885   
In 1817   

Abundance
  
  

Abundance In Universe
1 * 10-6 %   
16
6 * 10-7 %   
18

Abundance In Sun
~0.0000003 %   
24
~0.00017 %   
11

Abundance In Meteorites
0.00 %   
30
0.00 %   
22

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

Abundance In Oceans
0.00 %   
30
0.00 %   
15

Abundance In Humans
Not Available   
0.00 %   
16

Uses

Uses & Benefits
  • Neodymium-Iron-boron alloy is used to make permanent magnets.
  • It is used in microphones, Mp3 player, loudspeakers, mobile phones, etc.
  
  • The main usage of Lithium is manufacturing rechargeable batteries for electronic equipment and gadgets.
  • it is also used in manufacturing non-rechargeable batteries.
  

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

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Non Toxic   
NA   

Present in Human Body
No   
Yes   

In Blood
Not Available   
0.00 Blood/mg dm-3   
27

In Bone
Not Available   
1.30 p.p.m.   
17

Physical Properties

Melting Point
1,010.00 °C   
99+
180.54 °C   
99+

Boiling Point
3,127.00 °C   
28
1,347.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery White   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
Not Available   
0.60   
21

Brinell Hardness
265.00 MPa   
35
5.00 MPa   
99+

Vickers Hardness
345.00 MPa   
27
Not Available   

Speed of Sound
2,330.00 m/s   
38
6,000.00 m/s   
3

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
Nd   
Li   

Isotopes
  
  

Known Isotopes
30   
9
8   
30

Electronegativity
  
  

Pauling Electronegativity
1.14   
99+
0.98   
99+

Sanderson Electronegativity
Not Available   
0.89   
26

Allred Rochow Electronegativity
1.07   
32
0.97   
38

Mulliken-Jaffe Electronegativity
Not Available   
0.97   
19

Allen Electronegativity
Not Available   
0.91   
99+

Electropositivity
  
  

Pauling Electropositivity
2.86   
13
3.02   
8

Ionization Energies
  
  

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

2nd Energy Level
1,040.00 kJ/mol   
99+
7,298.10 kJ/mol   
3

3rd Energy Level
2,130.00 kJ/mol   
99+
11,815.00 kJ/mol   
4

4th Energy Level
3,900.00 kJ/mol   
99+
Not Available   

Electrochemical Equivalent
1.79 g/amp-hr   
37
0.26 g/amp-hr   
99+

Electron Work Function
3.20 eV   
34
2.90 eV   
37

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

Atomic Properties

Atomic Number
60   
99+
3   
99+

Electron Configuration
[Xe] 4f4 6s2   
[He] 2s1   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Body Centered Cubic (BCC)   

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

Atom
  
  

Number of Protons
60   
99+
3   
99+

Number of Neutrons
84   
40
4   
99+

Number of Electrons
60   
99+
3   
99+

Radius of an Atom
  
  

Atomic Radius
181.00 pm   
13
152.00 pm   
31

Covalent Radius
201.00 pm   
10
128.00 pm   
99+

Van der Waals Radius
229.00 pm   
20
182.00 pm   
35

Atomic Weight
144.24 amu   
99+
6.94 amu   
99+

Atomic Volume
20.60 cm3/mol   
18
13.10 cm3/mol   
39

Adjacent Atomic Numbers
  
  

Previous Element
No Previous Element   

Next Element
Promethium
  
Beryllium
  

Valence Electron Potential
43.40 (-eV)   
99+
19.00 (-eV)   
99+

Lattice Constant
365.80 pm   
30
351.00 pm   
99+

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

Lattice C/A Ratio
1.61   
4
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
7.01 g/cm3   
99+
0.53 g/cm3   
99+

Density When Liquid (at m.p.)
6.89 g/cm3   
36
0.51 g/cm3   
99+

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
21
109.00 (Pa)   
2

Vapor Pressure at 2000 K
101.00 (Pa)   
2
Not Available   

Elasticity properties
  
  

Shear Modulus
16.30 GPa   
38
4.20 GPa   
99+

Bulk Modulus
31.80 GPa   
37
11.00 GPa   
99+

Young's Modulus
41.40 GPa   
40
4.90 GPa   
99+

Poisson Ratio
0.28   
16
Not Available   

Other Mechanical Properties
NA   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
7.00   
99+
0.53   
99+

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
NA   
Conductor   

Resistivity
643.00 nΩ·m   
6
92.80 nΩ·m   
33

Electrical Conductivity
0.02 106/cm Ω   
99+
0.11 106/cm Ω   
19

Electron Affinity
50.00 kJ/mol   
21
59.60 kJ/mol   
16

Thermal Properties

Specific Heat
0.19 J/(kg K)   
32
3.60 J/(kg K)   
1

Molar Heat Capacity
27.45 J/mol·K   
17
24.86 J/mol·K   
99+

Thermal Conductivity
16.50 W/m·K   
99+
84.80 W/m·K   
20

Critical Temperature
Not Available   
3,223.00 K   
1

Thermal Expansion
9.60 µm/(m·K)   
99+
46.00 µm/(m·K)   
7

Enthalpy
  
  

Enthalpy of Vaporization
273.00 kJ/mol   
34
134.70 kJ/mol   
99+

Enthalpy of Fusion
7.14 kJ/mol   
99+
3.00 kJ/mol   
99+

Enthalpy of Atomization
322.00 kJ/mol   
32
160.70 kJ/mol   
99+

Standard Molar Entropy
71.50 J/mol.K   
13
29.10 J/mol.K   
99+

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