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Tantalum vs Platinum

Tantalum
Platinum
Platinum vs Tantalum


Periodic Table
Symbol
Ta   
Pt   
Group Number
5   
13
10   
8
Period Number
6   
6   
Block
d block   
d block   
Element Family
Transition Metal   
Transition Metal   
CAS Number
7440257   
99+
7440064   
99+
Space Group Name
Im_ 3m   
Fm_ 3m   
Space Group Number
229.00   
1
225.00   
2
Facts
Interesting Facts
  • Tantalum metal is known as corrosion resistance.
  • Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
  
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Mining, Ores of metals, Ores of Minerals   
History
  
  
Who Discovered
Anders Gustaf Ekeberg   
Antonio de Ulloa   
Discovery
In 1802   
In 1735   
Abundance
  
  
Abundance In Universe
8 * 10-9 %   
31
5 * 10-7 %   
19
Abundance In Sun
~-9999 %   
~0.0000009 %   
19
Abundance In Meteorites
0.00 %   
99+
0.00 %   
25
Abundance In Earth's Crust
0.00 %   
37
0.00 %   
99+
Abundance In Oceans
0.00 %   
31
Not Available   
Uses
Uses & Benefits
  • Tantalum metal is mainly used in the manufacturing of electron components. Its Oxide layer acts as an insulator.
  • Tantalum metal is also used in surgical transplant like replacement of bone, skull plates and as a woven gauze.
  
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
Industrial Uses
Electrical Industry, Electronic Industry   
Aerospace Industry, Chemical Industry   
Medical Uses
NA   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Other Uses
Alloys   
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Low Toxic   
Non Toxic   
Present in Human Body
Yes   
No   
In Bone
0.03 p.p.m.   
28
Not Available   
Physical Properties
Melting Point
2,996.00 °C   
4
1,772.00 °C   
16
Boiling Point
5,425.00 °C   
4
3,827.00 °C   
15
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gray Blue   
Silvery White   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
6.50   
5
3.50   
11
Brinell Hardness
440.00 MPa   
28
300.00 MPa   
34
Vickers Hardness
870.00 MPa   
12
400.00 MPa   
25
Speed of Sound
3,400.00 m/s   
22
2,800.00 m/s   
29
Optical Properties
  
  
Reflectivity
78.00 %   
6
73.00 %   
8
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Ta   
Pt   
Isotopes
  
  
Known Isotopes
31   
8
35   
4
Electronegativity
  
  
Pauling Electronegativity
1.50   
27
2.28   
3
Allred Rochow Electronegativity
1.33   
22
1.44   
17
Allen Electronegativity
1.34   
33
1.72   
16
Electropositivity
  
  
Pauling Electropositivity
2.50   
27
1.72   
99+
Ionization Energies
  
  
1st Energy Level
761.00 kJ/mol   
18
870.00 kJ/mol   
10
2nd Energy Level
1,500.00 kJ/mol   
40
1,791.00 kJ/mol   
21
Electrochemical Equivalent
1.35 g/amp-hr   
99+
1.82 g/amp-hr   
35
Electron Work Function
4.25 eV   
21
5.65 eV   
1
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Chemical Stability, Anti Corrosion, Ionization   
Atomic Properties
Atomic Number
73   
99+
78   
38
Electron Configuration
[Xe] 4f14 5d3 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
73   
99+
78   
38
Number of Neutrons
108   
28
117   
24
Number of Electrons
73   
99+
78   
38
Radius of an Atom
  
  
Atomic Radius
146.00 pm   
35
139.00 pm   
39
Covalent Radius
170.00 pm   
25
136.00 pm   
99+
Van der Waals Radius
200.00 pm   
28
175.00 pm   
36
Atomic Weight
180.95 amu   
38
47.87 amu   
99+
Atomic Volume
10.90 cm3/mol   
99+
9.09 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Hafnium
  
Iridium
  
Next Element
Tungsten
  
Gold
  
Valence Electron Potential
110.00 (-eV)   
7
392.42 (-eV)   
1
Lattice Constant
330.13 pm   
99+
392.42 pm   
24
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
16.69 g/cm3   
18
21.45 g/cm3   
11
Density When Liquid (at m.p.)
15.00 g/cm3   
9
19.77 g/cm3   
2
Tensile Strength
Not Available   
125.00 MPa   
14
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
0.00 (Pa)   
31
0.07 (Pa)   
18
Elasticity properties
  
  
Shear Modulus
69.00 GPa   
13
61.00 GPa   
14
Bulk Modulus
200.00 GPa   
8
230.00 GPa   
6
Young's Modulus
186.00 GPa   
13
168.00 GPa   
14
Poisson Ratio
0.34   
10
0.38   
6
Other Mechanical Properties
Ductile   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
16.65   
11
21.45   
4
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Permeability
Not Available   
0.00 H/m   
3
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
131.00 nΩ·m   
25
105.00 nΩ·m   
30
Electrical Conductivity
0.08 106/cm Ω   
27
0.10 106/cm Ω   
21
Electron Affinity
31.00 kJ/mol   
29
205.30 kJ/mol   
2
Thermal Properties
Specific Heat
0.14 J/(kg K)   
37
0.13 J/(kg K)   
39
Molar Heat Capacity
25.36 J/mol·K   
99+
25.86 J/mol·K   
35
Thermal Conductivity
57.50 W/m·K   
27
71.60 W/m·K   
24
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
6.30 µm/(m·K)   
99+
8.80 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
753.10 kJ/mol   
2
510.50 kJ/mol   
11
Enthalpy of Fusion
31.40 kJ/mol   
3
19.70 kJ/mol   
12
Enthalpy of Atomization
782.00 kJ/mol   
3
565.00 kJ/mol   
11
Standard Molar Entropy
41.50 J/mol.K   
37
41.60 J/mol.K   
36
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