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Manganese vs Tungsten

Manganese
Tungsten
Tungsten vs Manganese


Periodic Table
Symbol
Mn  
W  
Group Number
7  
11
6  
12
Period Number
4  
6  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7439965  
99+
7440337  
99+
Space Group Name
I_ 43m  
Im_ 3m  
Space Group Number
217.00  
5
229.00  
2
Facts
Interesting Facts
  • Manganese is an essential trace element in all forms of life.
  • Manganese metal oxidizes very easily, but it does not fuse that easily.
  
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Johann Gottlieb Gahn  
-  
Discovery
In 1774  
In 1781  
Abundance
  
  
Abundance In Universe
0.00 %  
9
0.00 %  
28
Abundance In Sun
0.00 %  
8
0.00 %  
23
Abundance In Meteorites
0.27 %  
8
0.00 %  
39
Abundance In Earth's Crust
0.11 %  
8
0.00 %  
39
Abundance In Oceans
0.00 %  
13
0.00 %  
18
Abundance In Humans
0.00 %  
15
0.00 %  
24
Uses
Uses & Benefits
  • This metal is very brittle hence it mostly not used as a pure metal, but its alloys are very useful
  • Its alloy Manganese steel is extremely strong and used in railway tracks, safes, prison bars and riffle barrels.
  
  • 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.
  
Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.08 Blood/mg dm-3  
14
0.00 Blood/mg dm-3  
31
In Bone
100.00 p.p.m.  
8
0.00 p.p.m.  
40
Physical
Melting Point
1,245.00 °C  
37
3,410.00 °C  
1
Boiling Point
1,962.00 °C  
99+
5,660.00 °C  
1
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Grayish White  
Luster
Metallic  
Lustrous  
Hardness
  
  
Mohs Hardness
6.00  
6
7.50  
2
Brinell Hardness
196.00 MPa  
99+
2,000.00 MPa  
4
Vickers Hardness
196.00 MPa  
99+
3,430.00 MPa  
3
Speed of Sound
5,150.00 m/s  
11
4,620.00 m/s  
20
Optical Properties
  
  
Refractive Index
2.00  
15
2.10  
11
Reflectivity
70.00 %  
13
62.00 %  
21
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Mn  
W  
Isotopes
  
  
Known Isotopes
21  
18
33  
6
Electronegativity
  
  
Pauling Electronegativity
1.55  
26
2.36  
3
Sanderson Electronegativity
2.20  
8
0.98  
99+
Allred Rochow Electronegativity
1.60  
10
1.40  
20
Mulliken-Jaffe Electronegativity
1.55  
23
2.36  
3
Allen Electronegativity
1.75  
18
1.47  
33
Electropositivity
  
  
Pauling Electropositivity
2.45  
29
1.64  
99+
Ionization Energies
  
  
1st Energy Level
717.30 kJ/mol  
30
770.00 kJ/mol  
16
2nd Energy Level
1,509.00 kJ/mol  
40
1,700.00 kJ/mol  
30
3rd Energy Level
3,248.00 kJ/mol  
21
2,045.40 kJ/mol  
99+
4th Energy Level
4,940.00 kJ/mol  
30
7,700.00 kJ/mol  
8
5th Energy Level
6,990.00 kJ/mol  
29
7,700.00 kJ/mol  
17
6th Energy Level
9,220.00 kJ/mol  
22
7,700.00 kJ/mol  
35
7th Energy level
11,500.00 kJ/mol  
16
7,700.00 kJ/mol  
29
8th Energy Level
18,770.00 kJ/mol  
5
7,700.00 kJ/mol  
29
9th Energy Level
21,400.00 kJ/mol  
6
7,700.00 kJ/mol  
25
10th Energy Level
23,960.00 kJ/mol  
9
7,700.00 kJ/mol  
29
11th Energy Level
27,590.00 kJ/mol  
10
7,700.00 kJ/mol  
28
12th Energy Level
30,330.00 kJ/mol  
32
7,700.00 kJ/mol  
99+
13th Energy Level
33,150.00 kJ/mol  
11
7,700.00 kJ/mol  
21
14th Energy Level
38,880.00 kJ/mol  
10
770.00 kJ/mol  
99+
15th Energy Level
41,987.00 kJ/mol  
99+
77,000.00 kJ/mol  
18
16th Energy Level
109,480.00 kJ/mol  
1
77,000.00 kJ/mol  
13
17th Energy Level
118,100.00 kJ/mol  
2
770.00 kJ/mol  
34
18th Energy Level
127,100.00 kJ/mol  
3
7,700.00 kJ/mol  
24
19th Energy Level
138,600.00 kJ/mol  
4
770.00 kJ/mol  
31
20th Energy Level
148,500.00 kJ/mol  
6
770.00 kJ/mol  
25
21st Energy Level
158,600.00 kJ/mol  
6
770.00 kJ/mol  
99+
22nd Energy Level
172,500.00 kJ/mol  
5
770.00 kJ/mol  
19
23rd Energy Level
181,380.00 kJ/mol  
5
770.00 kJ/mol  
99+
24th Energy Level
650.90 kJ/mol  
34
770.00 kJ/mol  
15
25th Energy Level
717.30 kJ/mol  
24
770.00 kJ/mol  
14
26th Energy Level
650.90 kJ/mol  
35
770.00 kJ/mol  
14
27th Energy Level
650.90 kJ/mol  
36
770.00 kJ/mol  
13
28th Energy Level
650.90 kJ/mol  
99+
770.00 kJ/mol  
19
29th Energy Level
650.90 kJ/mol  
99+
770.00 kJ/mol  
19
30th Energy Level
650.90 kJ/mol  
38
770.00 kJ/mol  
14
Electrochemical Equivalent
0.29 g/amp-hr  
99+
1.14 g/amp-hr  
99+
Electron Work Function
4.10 eV  
32
4.55 eV  
18
Other Chemical Properties
Ionization, Radioactive Isotopes  
Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
25  
99+
74  
99+
Electron Configuration
[Ar] 3d5 4s2  
[Xe] 4f14 5d4 6s2  
Crystal Structure
Body Centered Cubic (BCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
25  
99+
74  
99+
Number of Neutrons
30  
99+
110  
28
Number of Electrons
25  
99+
74  
99+
Radius of an Atom
  
  
Atomic Radius
127.00 pm  
99+
139.00 pm  
99+
Covalent Radius
139.00 pm  
99+
162.00 pm  
31
Van der Waals Radius
200.00 pm  
35
200.00 pm  
35
Atomic Weight
54.94 amu  
99+
183.84 amu  
37
Atomic Volume
1.39 cm3/mol  
99+
9.53 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Chromium
  
Tantalum
  
Next Element
Iron
  
Rhenium
  
Valence Electron Potential
220.00 (-eV)  
2
140.00 (-eV)  
5
Lattice Constant
891.25 pm  
1
316.52 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.55  
99+
1.29  
99+
Mechanical
Density
  
  
Density At Room Temperature
7.21 g/cm3  
99+
19.25 g/cm3  
16
Density When Liquid (at m.p.)
5.95 g/cm3  
99+
17.60 g/cm3  
15
Tensile Strength
370.00 MPa  
11
370.00 MPa  
11
Viscosity
0.00  
2
0.00  
1
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
12
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
40.00 GPa  
19
161.00 GPa  
5
Bulk Modulus
120.00 GPa  
14
310.00 GPa  
4
Young's Modulus
198.00 GPa  
13
411.00 GPa  
4
Poisson Ratio
0.30  
14
0.28  
17
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
7.21  
99+
19.22  
18
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
7
0.00 H/m  
17
Susceptibility
0.00  
12
0.00  
23
Electrical Properties
  
  
Electrical Property
Conductor  
Superconductor  
Resistivity
1.44 nΩ·m  
99+
52.80 nΩ·m  
99+
Electrical Conductivity
0.01 106/cm Ω  
99+
0.19 106/cm Ω  
10
Electron Affinity
0.00 kJ/mol  
99+
78.60 kJ/mol  
15
Thermal
Specific Heat
0.48 J/(kg K)  
11
0.13 J/(kg K)  
40
Molar Heat Capacity
26.32 J/mol·K  
37
24.27 J/mol·K  
99+
Thermal Conductivity
7.81 W/m·K  
99+
173.00 W/m·K  
7
Critical Temperature
1,519.00 K  
40
3,695.00 K  
1
Thermal Expansion
21.70 µm/(m·K)  
22
4.50 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
219.70 kJ/mol  
99+
799.10 kJ/mol  
1
Enthalpy of Fusion
14.64 kJ/mol  
25
35.23 kJ/mol  
1
Enthalpy of Atomization
280.30 kJ/mol  
99+
837.00 kJ/mol  
1
Standard Molar Entropy
32.00 J/mol.K  
99+
32.60 J/mol.K  
99+
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