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Technetium Platinum Comparison

Technetium
Platinum
Platinum Technetium comparison


Periodic Table
Symbol
Tc   
Pt   
Group Number
7   
11
10   
8
Period Number
5   
6   
Block
d block   
d block   
Element Family
Transition Metal   
Transition Metal   
CAS Number
7440268   
99+
7440064   
99+
Space Group Name
P63/mmc   
Fm_ 3m   
Space Group Number
194.00   
5
225.00   
2
Facts
Interesting Facts
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
Sources
Made by Bombarding Molybdenum with Deuterons   
Mining, Ores of metals, Ores of Minerals   
History
  
  
Who Discovered
Emilio Segrè and Carlo Perriero   
Antonio de Ulloa   
Discovery
In 1937   
In 1735   
Abundance
  
  
Abundance In Universe
Not Available   
5 * 10-7 %   
19
Abundance In Sun
~-9999 %   
~0.0000009 %   
19
Abundance In Meteorites
Not Available   
0.00 %   
25
Abundance In Earth's Crust
Not Available   
0.00 %   
99+
Uses
Uses & Benefits
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
Industrial Uses
NA   
Aerospace Industry, Chemical Industry   
Medical Uses
NA   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Other Uses
Alloys, Nuclear Research, Research Purposes   
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Low Toxic   
Non Toxic   
Present in Human Body
No   
No   
In Blood
0.00 Blood/mg dm-3   
37
Not Available   
In Bone
0.00 p.p.m.   
36
Not Available   
Physical Properties
Melting Point
2,200.00 °C   
9
1,772.00 °C   
16
Boiling Point
4,877.00 °C   
7
3,827.00 °C   
15
Appearance
  
  
Physical State
Solid   
Solid   
Color
Shiny Gray   
Silvery White   
Luster
NA   
Metallic   
Hardness
  
  
Mohs Hardness
Not Available   
3.50   
11
Brinell Hardness
Not Available   
300.00 MPa   
34
Vickers Hardness
Not Available   
400.00 MPa   
25
Speed of Sound
16,200.00 m/s   
1
2,800.00 m/s   
29
Optical Properties
  
  
Reflectivity
Not Available   
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
Tc   
Pt   
Isotopes
  
  
Known Isotopes
18   
21
35   
4
Electronegativity
  
  
Pauling Electronegativity
1.90   
11
2.28   
3
Allred Rochow Electronegativity
1.36   
20
1.44   
17
Allen Electronegativity
1.51   
28
1.72   
16
Electropositivity
  
  
Pauling Electropositivity
2.10   
99+
1.72   
99+
Ionization Energies
  
  
1st Energy Level
702.00 kJ/mol   
36
870.00 kJ/mol   
10
2nd Energy Level
1,470.00 kJ/mol   
99+
1,791.00 kJ/mol   
21
3rd Energy Level
2,850.00 kJ/mol   
33
Not Available   
Electrochemical Equivalent
0.52 g/amp-hr   
99+
1.82 g/amp-hr   
35
Electron Work Function
Not Available   
5.65 eV   
1
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Chemical Stability, Anti Corrosion, Ionization   
Atomic Properties
Atomic Number
43   
99+
78   
38
Electron Configuration
[Kr] 4d5 5s2   
[Xe] 4f14 5d9 6s1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
FCC-Crystal-Structure-of-Platinum.jpg#100   
Atom
  
  
Number of Protons
43   
99+
78   
38
Number of Neutrons
55   
99+
117   
24
Number of Electrons
43   
99+
78   
38
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
139.00 pm   
39
Covalent Radius
147.00 pm   
37
136.00 pm   
99+
Van der Waals Radius
200.00 pm   
28
175.00 pm   
36
Atomic Weight
98.00 amu   
99+
47.87 amu   
99+
Atomic Volume
8.50 cm3/mol   
99+
9.09 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Iridium
  
Next Element
Ruthenium
  
Gold
  
Valence Electron Potential
180.00 (-eV)   
3
392.42 (-eV)   
1
Lattice Constant
273.50 pm   
99+
392.42 pm   
24
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.60   
5
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
11.00 g/cm3   
34
21.45 g/cm3   
11
Density When Liquid (at m.p.)
Not Available   
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
Not Available   
0.07 (Pa)   
18
Elasticity properties
  
  
Shear Modulus
Not Available   
61.00 GPa   
14
Bulk Modulus
Not Available   
230.00 GPa   
6
Young's Modulus
Not Available   
168.00 GPa   
14
Poisson Ratio
Not Available   
0.38   
6
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
11.50   
24
21.45   
4
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Permeability
Not Available   
0.00 H/m   
3
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
200.00 nΩ·m   
18
105.00 nΩ·m   
30
Electrical Conductivity
0.07 106/cm Ω   
30
0.10 106/cm Ω   
21
Electron Affinity
53.00 kJ/mol   
18
205.30 kJ/mol   
2
Thermal Properties
Specific Heat
0.21 J/(kg K)   
29
0.13 J/(kg K)   
39
Molar Heat Capacity
24.27 J/mol·K   
99+
25.86 J/mol·K   
35
Thermal Conductivity
50.60 W/m·K   
30
71.60 W/m·K   
24
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
7.10 µm/(m·K)   
99+
8.80 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
660.00 kJ/mol   
6
510.50 kJ/mol   
11
Enthalpy of Fusion
23.01 kJ/mol   
9
19.70 kJ/mol   
12
Enthalpy of Atomization
649.00 kJ/mol   
8
565.00 kJ/mol   
11
Standard Molar Entropy
181.10 J/mol.K   
2
41.60 J/mol.K   
36
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