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Tungsten vs Platinum

Tungsten
Platinum
Platinum vs Tungsten


Periodic Table
Symbol
W  
Pt  
Group Number
6  
12
10  
8
Period Number
6  
6  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440337  
99+
7440064  
99+
Space Group Name
Im_ 3m  
Fm_ 3m  
Space Group Number
229.00  
2
225.00  
3
Facts
Interesting Facts
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Mining, Ores of metals, Ores of Minerals  
History
  
  
Who Discovered
-  
Antonio de Ulloa  
Discovery
In 1781  
In 1735  
Abundance
  
  
Abundance In Universe
0.00 %  
28
0.00 %  
20
Abundance In Sun
0.00 %  
23
0.00 %  
19
Abundance In Meteorites
0.00 %  
39
0.00 %  
25
Abundance In Earth's Crust
0.00 %  
39
0.00 %  
99+
Abundance In Oceans
0.00 %  
18
-  
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.
  
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Chemical Industry  
Medical Uses
-  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Alloys  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
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  
37
In Bone
0.00 p.p.m.  
40
0.00 p.p.m.  
99+
Physical
Melting Point
3,410.00 °C  
1
1,772.00 °C  
16
Boiling Point
5,660.00 °C  
1
3,827.00 °C  
15
Appearance
  
  
Physical State
Solid  
Solid  
Color
Grayish White  
Silvery White  
Luster
Lustrous  
Metallic  
Hardness
  
  
Mohs Hardness
7.50  
2
3.50  
12
Brinell Hardness
2,000.00 MPa  
4
300.00 MPa  
99+
Vickers Hardness
3,430.00 MPa  
3
400.00 MPa  
99+
Speed of Sound
4,620.00 m/s  
20
2,800.00 m/s  
99+
Optical Properties
  
  
Refractive Index
2.10  
11
2.41  
6
Reflectivity
62.00 %  
21
73.00 %  
10
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
W  
Pt  
Isotopes
  
  
Known Isotopes
33  
6
35  
4
Electronegativity
  
  
Pauling Electronegativity
2.36  
3
2.28  
4
Sanderson Electronegativity
0.98  
99+
2.28  
5
Allred Rochow Electronegativity
1.40  
20
1.44  
18
Mulliken-Jaffe Electronegativity
2.36  
3
2.20  
6
Allen Electronegativity
1.47  
33
1.72  
19
Electropositivity
  
  
Pauling Electropositivity
1.64  
99+
1.72  
99+
Ionization Energies
  
  
1st Energy Level
770.00 kJ/mol  
16
870.00 kJ/mol  
10
2nd Energy Level
1,700.00 kJ/mol  
30
1,791.00 kJ/mol  
22
3rd Energy Level
2,045.40 kJ/mol  
99+
2,277.00 kJ/mol  
99+
4th Energy Level
7,700.00 kJ/mol  
8
8,702.00 kJ/mol  
6
5th Energy Level
7,700.00 kJ/mol  
17
8,702.00 kJ/mol  
9
6th Energy Level
7,700.00 kJ/mol  
35
8,700.00 kJ/mol  
27
7th Energy level
7,700.00 kJ/mol  
29
8,700.00 kJ/mol  
23
8th Energy Level
7,700.00 kJ/mol  
29
8,700.00 kJ/mol  
23
9th Energy Level
7,700.00 kJ/mol  
25
5,660.00 kJ/mol  
99+
10th Energy Level
7,700.00 kJ/mol  
29
8,700.00 kJ/mol  
24
11th Energy Level
7,700.00 kJ/mol  
28
8,700.00 kJ/mol  
21
12th Energy Level
7,700.00 kJ/mol  
99+
8,700.00 kJ/mol  
99+
13th Energy Level
7,700.00 kJ/mol  
21
8,700.00 kJ/mol  
16
14th Energy Level
770.00 kJ/mol  
99+
870.00 kJ/mol  
99+
15th Energy Level
77,000.00 kJ/mol  
18
87,000.00 kJ/mol  
9
16th Energy Level
77,000.00 kJ/mol  
13
870.00 kJ/mol  
99+
17th Energy Level
770.00 kJ/mol  
34
870.00 kJ/mol  
27
18th Energy Level
7,700.00 kJ/mol  
24
8,700.00 kJ/mol  
16
19th Energy Level
770.00 kJ/mol  
31
870.00 kJ/mol  
25
20th Energy Level
770.00 kJ/mol  
25
870.00 kJ/mol  
15
21st Energy Level
770.00 kJ/mol  
99+
870.00 kJ/mol  
38
22nd Energy Level
770.00 kJ/mol  
19
870.00 kJ/mol  
13
23rd Energy Level
770.00 kJ/mol  
99+
870.10 kJ/mol  
39
24th Energy Level
770.00 kJ/mol  
15
870.00 kJ/mol  
9
25th Energy Level
770.00 kJ/mol  
14
870.00 kJ/mol  
7
26th Energy Level
770.00 kJ/mol  
14
870.00 kJ/mol  
7
27th Energy Level
770.00 kJ/mol  
13
870.10 kJ/mol  
6
28th Energy Level
770.00 kJ/mol  
19
870.10 kJ/mol  
9
29th Energy Level
770.00 kJ/mol  
19
870.00 kJ/mol  
10
30th Energy Level
770.00 kJ/mol  
14
870.00 kJ/mol  
7
Electrochemical Equivalent
1.14 g/amp-hr  
99+
1.82 g/amp-hr  
39
Electron Work Function
4.55 eV  
18
5.65 eV  
4
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Chemical Stability, Anti Corrosion, Ionization  
Atomic
Atomic Number
74  
99+
78  
38
Electron Configuration
[Xe] 4f14 5d4 6s2  
[Xe] 4f14 5d9 6s1  
Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Platinum.jpg#100  
Atom
  
  
Number of Protons
74  
99+
78  
38
Number of Neutrons
110  
28
117  
25
Number of Electrons
74  
99+
78  
38
Radius of an Atom
  
  
Atomic Radius
139.00 pm  
99+
139.00 pm  
99+
Covalent Radius
162.00 pm  
31
136.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
175.00 pm  
99+
Atomic Weight
183.84 amu  
37
47.87 amu  
99+
Atomic Volume
9.53 cm3/mol  
99+
9.09 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Tantalum
  
Iridium
  
Next Element
Rhenium
  
Gold
  
Valence Electron Potential
140.00 (-eV)  
5
392.42 (-eV)  
1
Lattice Constant
316.52 pm  
99+
392.42 pm  
27
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.29  
99+
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
19.25 g/cm3  
16
21.45 g/cm3  
11
Density When Liquid (at m.p.)
17.60 g/cm3  
15
19.77 g/cm3  
12
Tensile Strength
370.00 MPa  
11
125.00 MPa  
26
Viscosity
0.00  
1
0.00  
16
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
16
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
0.07 (Pa)  
18
Elasticity properties
  
  
Shear Modulus
161.00 GPa  
5
61.00 GPa  
14
Bulk Modulus
310.00 GPa  
4
230.00 GPa  
6
Young's Modulus
411.00 GPa  
4
168.00 GPa  
15
Poisson Ratio
0.28  
17
0.38  
6
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
19.22  
18
21.45  
13
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
14
Susceptibility
0.00  
23
0.00  
20
Electrical Properties
  
  
Electrical Property
Superconductor  
Conductor  
Resistivity
52.80 nΩ·m  
99+
105.00 nΩ·m  
30
Electrical Conductivity
0.19 106/cm Ω  
10
0.10 106/cm Ω  
26
Electron Affinity
78.60 kJ/mol  
15
205.30 kJ/mol  
2
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.13 J/(kg K)  
40
Molar Heat Capacity
24.27 J/mol·K  
99+
25.86 J/mol·K  
99+
Thermal Conductivity
173.00 W/m·K  
7
71.60 W/m·K  
24
Critical Temperature
3,695.00 K  
1
2,041.00 K  
19
Thermal Expansion
4.50 µm/(m·K)  
99+
8.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
799.10 kJ/mol  
1
510.50 kJ/mol  
15
Enthalpy of Fusion
35.23 kJ/mol  
1
19.70 kJ/mol  
12
Enthalpy of Atomization
837.00 kJ/mol  
1
565.00 kJ/mol  
15
Standard Molar Entropy
32.60 J/mol.K  
99+
41.60 J/mol.K  
99+
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