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Molybdenum Iron Comparison

Molybdenum
Iron
Iron Molybdenum comparison


Periodic Table
Symbol
Mo  
Fe  
Group Number
6  
12
8  
10
Period Number
5  
4  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7439987  
99+
7439896  
99+
Space Group Name
Im_ 3m  
Im_ 3m  
Space Group Number
229.00  
2
229.00  
2
Facts
Interesting Facts
  • Molybdenum is highly reactive metal, hence not found free in nature .
  • Till 18th century Molybdenum element were often mistaken as a carbon or Lead.
  
  • Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
  • The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
Carl Wilhelm Scheele  
-  
Discovery
In 1778  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
20
0.11 %  
1
Abundance In Sun
0.00 %  
19
0.10 %  
1
Abundance In Meteorites
0.00 %  
24
22.00 %  
1
Abundance In Earth's Crust
0.00 %  
39
6.30 %  
2
Abundance In Oceans
0.00 %  
9
0.00 %  
12
Abundance In Humans
0.00 %  
17
0.01 %  
6
Uses
Uses & Benefits
  • Its alloys are used to make engine parts, drills, saw blade, etc.
  • Lubricant additive made up of Molybdenum disulfide is commonly used in the industry. It is also used as a catalyst.
  
  • Iron metal alloy steel is used in the application of civil engineering and manufacturing.
  • Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
  
Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Alloys  
Alloys, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
31
447.00 Blood/mg dm-3  
3
In Bone
0.70 p.p.m.  
20
380.00 p.p.m.  
5
Physical
Melting Point
2,617.00 °C  
5
1,535.00 °C  
25
Boiling Point
4,612.00 °C  
9
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gray  
Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
5.50  
7
4.00  
11
Brinell Hardness
1,370.00 MPa  
7
200.00 MPa  
99+
Vickers Hardness
1,400.00 MPa  
11
608.00 MPa  
27
Speed of Sound
5,400.00 m/s  
9
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
2.00  
15
2.60  
4
Reflectivity
58.00 %  
25
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Mo  
Fe  
Isotopes
  
  
Known Isotopes
25  
14
26  
13
Electronegativity
  
  
Pauling Electronegativity
2.16  
6
1.83  
15
Sanderson Electronegativity
1.15  
34
2.20  
8
Allred Rochow Electronegativity
1.30  
25
1.64  
9
Mulliken-Jaffe Electronegativity
2.16  
7
1.83  
16
Allen Electronegativity
2.16  
3
1.80  
15
Electropositivity
  
  
Pauling Electropositivity
1.84  
99+
2.17  
99+
Ionization Energies
  
  
1st Energy Level
684.30 kJ/mol  
37
762.50 kJ/mol  
17
2nd Energy Level
1,560.00 kJ/mol  
38
1,561.90 kJ/mol  
37
3rd Energy Level
2,618.00 kJ/mol  
99+
2,957.00 kJ/mol  
29
4th Energy Level
4,480.00 kJ/mol  
36
5,290.00 kJ/mol  
25
5th Energy Level
5,257.00 kJ/mol  
99+
7,240.00 kJ/mol  
25
6th Energy Level
6,640.80 kJ/mol  
99+
9,560.00 kJ/mol  
20
7th Energy level
12,125.00 kJ/mol  
13
12,060.00 kJ/mol  
15
8th Energy Level
13,860.00 kJ/mol  
16
14,580.00 kJ/mol  
14
9th Energy Level
15,835.00 kJ/mol  
16
22,540.00 kJ/mol  
5
10th Energy Level
17,980.00 kJ/mol  
18
25,290.00 kJ/mol  
8
11th Energy Level
20,190.00 kJ/mol  
17
28,000.00 kJ/mol  
9
12th Energy Level
22,219.00 kJ/mol  
38
31,920.00 kJ/mol  
31
13th Energy Level
26,930.00 kJ/mol  
13
34,830.00 kJ/mol  
9
14th Energy Level
29,196.00 kJ/mol  
13
37,840.00 kJ/mol  
11
15th Energy Level
52,490.00 kJ/mol  
99+
44,100.00 kJ/mol  
99+
16th Energy Level
55,000.00 kJ/mol  
99+
47,206.00 kJ/mol  
99+
17th Energy Level
61,400.00 kJ/mol  
9
122,200.00 kJ/mol  
1
18th Energy Level
67,700.00 kJ/mol  
9
131,000.00 kJ/mol  
2
19th Energy Level
74,000.00 kJ/mol  
9
140,500.00 kJ/mol  
3
20th Energy Level
80,400.00 kJ/mol  
10
152,600.00 kJ/mol  
5
21st Energy Level
87,000.00 kJ/mol  
9
163,000.00 kJ/mol  
5
22nd Energy Level
93,400.00 kJ/mol  
7
173,600.00 kJ/mol  
4
23rd Energy Level
98,420.00 kJ/mol  
6
188,100.00 kJ/mol  
4
24th Energy Level
104,400.00 kJ/mol  
2
195,200.00 kJ/mol  
1
25th Energy Level
121,900.00 kJ/mol  
1
762.00 kJ/mol  
15
26th Energy Level
127,700.00 kJ/mol  
1
762.50 kJ/mol  
15
27th Energy Level
133,800.00 kJ/mol  
1
762.50 kJ/mol  
14
28th Energy Level
139,800.00 kJ/mol  
1
762.50 kJ/mol  
20
29th Energy Level
148,100.00 kJ/mol  
1
762.50 kJ/mol  
20
30th Energy Level
154,500.00 kJ/mol  
1
762.00 kJ/mol  
15
Electrochemical Equivalent
0.89 g/amp-hr  
99+
0.69 g/amp-hr  
99+
Electron Work Function
4.60 eV  
17
4.70 eV  
15
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
42  
99+
26  
99+
Electron Configuration
[Kr] 4d5 5s1  
[Ar] 3d6 4s2  
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
42  
99+
26  
99+
Number of Neutrons
54  
99+
30  
99+
Number of Electrons
42  
99+
26  
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm  
99+
126.00 pm  
99+
Covalent Radius
154.00 pm  
34
132.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
200.00 pm  
35
Atomic Weight
95.95 amu  
99+
55.85 amu  
99+
Atomic Volume
9.40 cm3/mol  
99+
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Niobium
  
Manganese
  
Next Element
Technetium
  
Cobalt
  
Valence Electron Potential
88.60 (-eV)  
13
67.00 (-eV)  
20
Lattice Constant
314.70 pm  
99+
286.65 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.03  
99+
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
10.28 g/cm3  
39
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
9.33 g/cm3  
99+
6.98 g/cm3  
99+
Tensile Strength
324.00 MPa  
15
11,000.00 MPa  
1
Viscosity
0.00  
5
0.00  
19
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
30
Vapor Pressure at 2000 K
0.00 (Pa)  
27
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
126.00 GPa  
8
82.00 GPa  
11
Bulk Modulus
230.00 GPa  
6
170.00 GPa  
10
Young's Modulus
329.00 GPa  
6
211.00 GPa  
9
Poisson Ratio
0.31  
13
0.29  
15
Other Mechanical Properties
Ductile, Weldable  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
10.22  
40
7.20  
99+
Magnetic Ordering
Paramagnetic  
Ferromagnetic  
Permeability
0.00 H/m  
9
0.01 H/m  
1
Susceptibility
0.00  
29
200,000.00  
1
Electrical Properties
  
  
Electrical Property
Semiconductor  
Conductor  
Resistivity
53.40 nΩ·m  
99+
96.10 nΩ·m  
32
Electrical Conductivity
0.19 106/cm Ω  
11
0.10 106/cm Ω  
24
Electron Affinity
71.90 kJ/mol  
16
15.70 kJ/mol  
40
Thermal
Specific Heat
0.25 J/(kg K)  
21
0.44 J/(kg K)  
13
Molar Heat Capacity
24.06 J/mol·K  
99+
25.10 J/mol·K  
99+
Thermal Conductivity
138.00 W/m·K  
12
80.40 W/m·K  
22
Critical Temperature
2,896.00 K  
6
1,811.00 K  
29
Thermal Expansion
4.80 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
594.10 kJ/mol  
9
351.00 kJ/mol  
33
Enthalpy of Fusion
27.61 kJ/mol  
5
14.90 kJ/mol  
23
Enthalpy of Atomization
653.00 kJ/mol  
7
414.20 kJ/mol  
24
Standard Molar Entropy
28.70 J/mol.K  
99+
27.30 J/mol.K  
99+
Summary >>
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