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Platinum vs Molybdenum

Platinum
Molybdenum
Molybdenum vs Platinum


Periodic Table
Symbol
Pt  
Mo  
Group Number
10  
8
6  
12
Period Number
6  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440064  
99+
7439987  
99+
Space Group Name
Fm_ 3m  
Im_ 3m  
Space Group Number
225.00  
3
229.00  
2
Facts
Interesting Facts
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
  • Molybdenum is highly reactive metal, hence not found free in nature .
  • Till 18th century Molybdenum element were often mistaken as a carbon or Lead.
  
Sources
Mining, Ores of metals, Ores of Minerals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Antonio de Ulloa  
Carl Wilhelm Scheele  
Discovery
In 1735  
In 1778  
Abundance
  
  
Abundance In Universe
0.00 %  
20
0.00 %  
20
Abundance In Sun
0.00 %  
19
0.00 %  
19
Abundance In Meteorites
0.00 %  
25
0.00 %  
24
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
39
Abundance In Oceans
-  
0.00 %  
9
Abundance In Humans
0.00 %  
24
0.00 %  
17
Uses
Uses & Benefits
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
  • 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.
  
Industrial Uses
Aerospace Industry, Chemical Industry  
Aerospace Industry, Electrical Industry, Electronic Industry  
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
-  
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Alloys  
Biological Properties
  
  
Toxicity
Non Toxic  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
31
In Bone
0.00 p.p.m.  
99+
0.70 p.p.m.  
20
Physical
Melting Point
1,772.00 °C  
16
2,617.00 °C  
5
Boiling Point
3,827.00 °C  
15
4,612.00 °C  
9
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
3.50  
12
5.50  
7
Brinell Hardness
300.00 MPa  
99+
1,370.00 MPa  
7
Vickers Hardness
400.00 MPa  
99+
1,400.00 MPa  
11
Speed of Sound
2,800.00 m/s  
99+
5,400.00 m/s  
9
Optical Properties
  
  
Refractive Index
2.41  
6
2.00  
15
Reflectivity
73.00 %  
10
58.00 %  
25
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Pt  
Mo  
Isotopes
  
  
Known Isotopes
35  
4
25  
14
Electronegativity
  
  
Pauling Electronegativity
2.28  
4
2.16  
6
Sanderson Electronegativity
2.28  
5
1.15  
34
Allred Rochow Electronegativity
1.44  
18
1.30  
25
Mulliken-Jaffe Electronegativity
2.20  
6
2.16  
7
Allen Electronegativity
1.72  
19
2.16  
3
Electropositivity
  
  
Pauling Electropositivity
1.72  
99+
1.84  
99+
Ionization Energies
  
  
1st Energy Level
870.00 kJ/mol  
10
684.30 kJ/mol  
37
2nd Energy Level
1,791.00 kJ/mol  
22
1,560.00 kJ/mol  
38
3rd Energy Level
2,277.00 kJ/mol  
99+
2,618.00 kJ/mol  
99+
4th Energy Level
8,702.00 kJ/mol  
6
4,480.00 kJ/mol  
36
5th Energy Level
8,702.00 kJ/mol  
9
5,257.00 kJ/mol  
99+
6th Energy Level
8,700.00 kJ/mol  
27
6,640.80 kJ/mol  
99+
7th Energy level
8,700.00 kJ/mol  
23
12,125.00 kJ/mol  
13
8th Energy Level
8,700.00 kJ/mol  
23
13,860.00 kJ/mol  
16
9th Energy Level
5,660.00 kJ/mol  
99+
15,835.00 kJ/mol  
16
10th Energy Level
8,700.00 kJ/mol  
24
17,980.00 kJ/mol  
18
11th Energy Level
8,700.00 kJ/mol  
21
20,190.00 kJ/mol  
17
12th Energy Level
8,700.00 kJ/mol  
99+
22,219.00 kJ/mol  
38
13th Energy Level
8,700.00 kJ/mol  
16
26,930.00 kJ/mol  
13
14th Energy Level
870.00 kJ/mol  
99+
29,196.00 kJ/mol  
13
15th Energy Level
87,000.00 kJ/mol  
9
52,490.00 kJ/mol  
99+
16th Energy Level
870.00 kJ/mol  
99+
55,000.00 kJ/mol  
99+
17th Energy Level
870.00 kJ/mol  
27
61,400.00 kJ/mol  
9
18th Energy Level
8,700.00 kJ/mol  
16
67,700.00 kJ/mol  
9
19th Energy Level
870.00 kJ/mol  
25
74,000.00 kJ/mol  
9
20th Energy Level
870.00 kJ/mol  
15
80,400.00 kJ/mol  
10
21st Energy Level
870.00 kJ/mol  
38
87,000.00 kJ/mol  
9
22nd Energy Level
870.00 kJ/mol  
13
93,400.00 kJ/mol  
7
23rd Energy Level
870.10 kJ/mol  
39
98,420.00 kJ/mol  
6
24th Energy Level
870.00 kJ/mol  
9
104,400.00 kJ/mol  
2
25th Energy Level
870.00 kJ/mol  
7
121,900.00 kJ/mol  
1
26th Energy Level
870.00 kJ/mol  
7
127,700.00 kJ/mol  
1
27th Energy Level
870.10 kJ/mol  
6
133,800.00 kJ/mol  
1
28th Energy Level
870.10 kJ/mol  
9
139,800.00 kJ/mol  
1
29th Energy Level
870.00 kJ/mol  
10
148,100.00 kJ/mol  
1
30th Energy Level
870.00 kJ/mol  
7
154,500.00 kJ/mol  
1
Electrochemical Equivalent
1.82 g/amp-hr  
39
0.89 g/amp-hr  
99+
Electron Work Function
5.65 eV  
4
4.60 eV  
17
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization  
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
78  
38
42  
99+
Electron Configuration
[Xe] 4f14 5d9 6s1  
[Kr] 4d5 5s1  
Crystal Structure
Face Centered Cubic (FCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Platinum.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
78  
38
42  
99+
Number of Neutrons
117  
25
54  
99+
Number of Electrons
78  
38
42  
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm  
99+
139.00 pm  
99+
Covalent Radius
136.00 pm  
99+
154.00 pm  
34
Van der Waals Radius
175.00 pm  
99+
200.00 pm  
35
Atomic Weight
47.87 amu  
99+
95.95 amu  
99+
Atomic Volume
9.09 cm3/mol  
99+
9.40 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Iridium
  
Niobium
  
Next Element
Gold
  
Technetium
  
Valence Electron Potential
392.42 (-eV)  
1
88.60 (-eV)  
13
Lattice Constant
392.42 pm  
27
314.70 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.56  
99+
1.03  
99+
Mechanical
Density
  
  
Density At Room Temperature
21.45 g/cm3  
11
10.28 g/cm3  
39
Density When Liquid (at m.p.)
19.77 g/cm3  
12
9.33 g/cm3  
99+
Tensile Strength
125.00 MPa  
26
324.00 MPa  
15
Viscosity
0.00  
16
0.00  
5
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.07 (Pa)  
18
0.00 (Pa)  
27
Elasticity properties
  
  
Shear Modulus
61.00 GPa  
14
126.00 GPa  
8
Bulk Modulus
230.00 GPa  
6
230.00 GPa  
6
Young's Modulus
168.00 GPa  
15
329.00 GPa  
6
Poisson Ratio
0.38  
6
0.31  
13
Other Mechanical Properties
Ductile, Malleable  
Ductile, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
21.45  
13
10.22  
40
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
14
0.00 H/m  
9
Susceptibility
0.00  
20
0.00  
29
Electrical Properties
  
  
Electrical Property
Conductor  
Semiconductor  
Resistivity
105.00 nΩ·m  
30
53.40 nΩ·m  
99+
Electrical Conductivity
0.10 106/cm Ω  
26
0.19 106/cm Ω  
11
Electron Affinity
205.30 kJ/mol  
2
71.90 kJ/mol  
16
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.25 J/(kg K)  
21
Molar Heat Capacity
25.86 J/mol·K  
99+
24.06 J/mol·K  
99+
Thermal Conductivity
71.60 W/m·K  
24
138.00 W/m·K  
12
Critical Temperature
2,041.00 K  
19
2,896.00 K  
6
Thermal Expansion
8.80 µm/(m·K)  
99+
4.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
510.50 kJ/mol  
15
594.10 kJ/mol  
9
Enthalpy of Fusion
19.70 kJ/mol  
12
27.61 kJ/mol  
5
Enthalpy of Atomization
565.00 kJ/mol  
15
653.00 kJ/mol  
7
Standard Molar Entropy
41.60 J/mol.K  
99+
28.70 J/mol.K  
99+
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