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Tungsten vs Neodymium

Tungsten
Neodymium
Neodymium vs Tungsten


Periodic Table
Symbol
W  
-  
Group Number
6  
12
1  
17
Period Number
6  
6  
Block
d block  
f block  
Element Family
Transition Metal  
Lanthanide  
CAS Number
7440337  
99+
7440008  
99+
Space Group Name
Im_ 3m  
P63/mmc  
Space Group Number
229.00  
2
194.00  
7
Facts
Interesting Facts
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  
  • Neodymium is not found free in nature, hence it is not a native metal.
  • Neodymium metal found in minerals like Monazite and Bastnaesite.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Found in Minerals, Mining  
History
  
  
Who Discovered
-  
Carl Auer von Welsbach  
Discovery
In 1781  
In 1885  
Abundance
  
  
Abundance In Universe
0.00 %  
28
0.00 %  
17
Abundance In Sun
0.00 %  
23
0.00 %  
24
Abundance In Meteorites
0.00 %  
39
0.00 %  
30
Abundance In Earth's Crust
0.00 %  
39
0.00 %  
20
Abundance In Oceans
0.00 %  
18
0.00 %  
30
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • Tungsten and its alloys are used in high-temperature applications like welding electrodes, high-temperature furnace, etc.
  • Tungsten carbide is very hard and used in metal working, mining and petroleum industry.
  
  • Neodymium-Iron-boron alloy is used to make permanent magnets.
  • It is used in microphones, Mp3 player, loudspeakers, mobile phones, etc.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Non Toxic  
Non Toxic  
Present in Human Body
Yes  
No  
In Blood
0.00 Blood/mg dm-3  
31
0.00 Blood/mg dm-3  
34
In Bone
0.00 p.p.m.  
40
0.00 p.p.m.  
99+
Physical
Melting Point
3,410.00 °C  
1
1,010.00 °C  
99+
Boiling Point
5,660.00 °C  
1
3,127.00 °C  
29
Appearance
  
  
Physical State
Solid  
Solid  
Color
Grayish White  
Silvery White  
Luster
Lustrous  
Metallic  
Hardness
  
  
Mohs Hardness
7.50  
2
7.00  
3
Brinell Hardness
2,000.00 MPa  
4
265.00 MPa  
99+
Vickers Hardness
3,430.00 MPa  
3
345.00 MPa  
99+
Speed of Sound
4,620.00 m/s  
20
2,330.00 m/s  
99+
Optical Properties
  
  
Refractive Index
2.10  
11
1.64  
30
Reflectivity
62.00 %  
21
80.00 %  
7
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
W  
-  
Isotopes
  
  
Known Isotopes
33  
6
30  
9
Electronegativity
  
  
Pauling Electronegativity
2.36  
3
1.14  
99+
Sanderson Electronegativity
0.98  
99+
1.14  
35
Allred Rochow Electronegativity
1.40  
20
1.07  
33
Mulliken-Jaffe Electronegativity
2.36  
3
1.14  
99+
Allen Electronegativity
1.47  
33
1.14  
99+
Electropositivity
  
  
Pauling Electropositivity
1.64  
99+
2.86  
13
Ionization Energies
  
  
1st Energy Level
770.00 kJ/mol  
16
533.10 kJ/mol  
99+
2nd Energy Level
1,700.00 kJ/mol  
30
1,040.00 kJ/mol  
99+
3rd Energy Level
2,045.40 kJ/mol  
99+
2,130.00 kJ/mol  
99+
4th Energy Level
7,700.00 kJ/mol  
8
3,900.00 kJ/mol  
99+
5th Energy Level
7,700.00 kJ/mol  
17
5,330.00 kJ/mol  
99+
6th Energy Level
7,700.00 kJ/mol  
35
5,330.00 kJ/mol  
99+
7th Energy level
7,700.00 kJ/mol  
29
5,331.00 kJ/mol  
99+
8th Energy Level
7,700.00 kJ/mol  
29
5,360.00 kJ/mol  
99+
9th Energy Level
7,700.00 kJ/mol  
25
5,330.00 kJ/mol  
99+
10th Energy Level
7,700.00 kJ/mol  
29
5,330.00 kJ/mol  
99+
11th Energy Level
7,700.00 kJ/mol  
28
5,330.00 kJ/mol  
99+
12th Energy Level
7,700.00 kJ/mol  
99+
5,330.00 kJ/mol  
99+
13th Energy Level
7,700.00 kJ/mol  
21
5,330.00 kJ/mol  
99+
14th Energy Level
770.00 kJ/mol  
99+
533.10 kJ/mol  
99+
15th Energy Level
77,000.00 kJ/mol  
18
53,300.00 kJ/mol  
99+
16th Energy Level
77,000.00 kJ/mol  
13
533.10 kJ/mol  
99+
17th Energy Level
770.00 kJ/mol  
34
533.10 kJ/mol  
99+
18th Energy Level
7,700.00 kJ/mol  
24
5,331.00 kJ/mol  
99+
19th Energy Level
770.00 kJ/mol  
31
533.10 kJ/mol  
99+
20th Energy Level
770.00 kJ/mol  
25
536.00 kJ/mol  
99+
21st Energy Level
770.00 kJ/mol  
99+
533.10 kJ/mol  
99+
22nd Energy Level
770.00 kJ/mol  
19
533.00 kJ/mol  
99+
23rd Energy Level
770.00 kJ/mol  
99+
5,331.00 kJ/mol  
27
24th Energy Level
770.00 kJ/mol  
15
533.10 kJ/mol  
99+
25th Energy Level
770.00 kJ/mol  
14
533.10 kJ/mol  
99+
26th Energy Level
770.00 kJ/mol  
14
533.10 kJ/mol  
99+
27th Energy Level
770.00 kJ/mol  
13
533.10 kJ/mol  
99+
28th Energy Level
770.00 kJ/mol  
19
533.10 kJ/mol  
99+
29th Energy Level
770.00 kJ/mol  
19
533.10 kJ/mol  
99+
30th Energy Level
770.00 kJ/mol  
14
533.10 kJ/mol  
99+
Electrochemical Equivalent
1.14 g/amp-hr  
99+
1.79 g/amp-hr  
99+
Electron Work Function
4.55 eV  
18
3.20 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Chemical Stability, Corrosion, Flammable, Ionization  
Atomic
Atomic Number
74  
99+
60  
99+
Electron Configuration
[Xe] 4f14 5d4 6s2  
[Xe] 4f4 6s2  
Crystal Structure
Body Centered Cubic (BCC)  
Double Hexagonal Close Packed (DHCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
DHCP-Crystal-Structure-of-Neodymium.jpg#100  
Atom
  
  
Number of Protons
74  
99+
60  
99+
Number of Neutrons
110  
28
84  
99+
Number of Electrons
74  
99+
60  
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm  
99+
181.00 pm  
15
Covalent Radius
162.00 pm  
31
201.00 pm  
10
Van der Waals Radius
200.00 pm  
35
229.00 pm  
25
Atomic Weight
183.84 amu  
37
144.24 amu  
99+
Atomic Volume
9.53 cm3/mol  
99+
20.60 cm3/mol  
28
Adjacent Atomic Numbers
  
  
Previous Element
Tantalum
  
Praseodymium
  
Next Element
Rhenium
  
Promethium
  
Valence Electron Potential
140.00 (-eV)  
5
43.40 (-eV)  
99+
Lattice Constant
316.52 pm  
99+
365.80 pm  
33
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.29  
99+
1.61  
18
Mechanical
Density
  
  
Density At Room Temperature
19.25 g/cm3  
16
7.01 g/cm3  
99+
Density When Liquid (at m.p.)
17.60 g/cm3  
15
6.89 g/cm3  
99+
Tensile Strength
370.00 MPa  
11
345.00 MPa  
13
Viscosity
0.00  
1
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
23
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
101.00 (Pa)  
2
Elasticity properties
  
  
Shear Modulus
161.00 GPa  
5
16.30 GPa  
99+
Bulk Modulus
310.00 GPa  
4
31.80 GPa  
99+
Young's Modulus
411.00 GPa  
4
41.40 GPa  
99+
Poisson Ratio
0.28  
17
0.28  
16
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
19.22  
18
7.00  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
7
Susceptibility
0.00  
23
0.00  
9
Electrical Properties
  
  
Electrical Property
Superconductor  
-  
Resistivity
52.80 nΩ·m  
99+
643.00 nΩ·m  
6
Electrical Conductivity
0.19 106/cm Ω  
10
0.02 106/cm Ω  
99+
Electron Affinity
78.60 kJ/mol  
15
50.00 kJ/mol  
26
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.19 J/(kg K)  
33
Molar Heat Capacity
24.27 J/mol·K  
99+
27.45 J/mol·K  
22
Thermal Conductivity
173.00 W/m·K  
7
16.50 W/m·K  
99+
Critical Temperature
3,695.00 K  
1
1,297.00 K  
99+
Thermal Expansion
4.50 µm/(m·K)  
99+
9.60 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
799.10 kJ/mol  
1
273.00 kJ/mol  
99+
Enthalpy of Fusion
35.23 kJ/mol  
1
7.14 kJ/mol  
99+
Enthalpy of Atomization
837.00 kJ/mol  
1
322.00 kJ/mol  
99+
Standard Molar Entropy
32.60 J/mol.K  
99+
71.50 J/mol.K  
13
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