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Cesium vs Platinum

Cesium
Platinum
Platinum vs Cesium


Periodic Table
Symbol
Cs   
Pt   
Group Number
1   
17
10   
8
Period Number
6   
6   
Block
s block   
d block   
Element Family
Alkali   
Transition Metal   
CAS Number
7440462   
40
7440064   
99+
Space Group Name
Im_ 3m   
Fm_ 3m   
Space Group Number
229.00   
1
225.00   
2
Facts
Interesting Facts
Not Available   
  • 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
Robert Bunsen and Gustav Kirchhoff   
Antonio de Ulloa   
Discovery
In 1860   
In 1735   
Abundance
  
  
Abundance In Universe
8 * 10-8 %   
24
5 * 10-7 %   
19
Abundance In Sun
~0.0000008 %   
20
~0.0000009 %   
19
Abundance In Meteorites
0.00 %   
38
0.00 %   
25
Abundance In Earth's Crust
0.00 %   
35
0.00 %   
99+
Abundance In Oceans
0.00 %   
17
Not Available   
Abundance In Humans
0.00 %   
17
Not Available   
Uses
Uses & Benefits
  • The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
  • In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
  
  • 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
NA   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Other Uses
Alloys   
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Mildly Toxic   
Non Toxic   
Present in Human Body
Yes   
No   
In Blood
0.00 Blood/mg dm-3   
28
Not Available   
In Bone
0.05 p.p.m.   
26
Not Available   
Physical Properties
Melting Point
28.50 °C   
99+
1,772.00 °C   
16
Boiling Point
678.40 °C   
99+
3,827.00 °C   
15
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gold   
Silvery White   
Luster
NA   
Metallic   
Hardness
  
  
Mohs Hardness
0.20   
25
3.50   
11
Brinell Hardness
0.14 MPa   
99+
300.00 MPa   
34
Vickers Hardness
Not Available   
400.00 MPa   
25
Speed of Sound
Not Available   
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
Cs   
Pt   
Isotopes
  
  
Known Isotopes
36   
3
35   
4
Electronegativity
  
  
Pauling Electronegativity
0.79   
99+
2.28   
3
Sanderson Electronegativity
0.22   
33
Not Available   
Allred Rochow Electronegativity
0.86   
99+
1.44   
17
Mulliken-Jaffe Electronegativity
0.62   
26
Not Available   
Allen Electronegativity
0.66   
99+
1.72   
16
Electropositivity
  
  
Pauling Electropositivity
3.21   
2
1.72   
99+
Ionization Energies
  
  
1st Energy Level
375.70 kJ/mol   
99+
870.00 kJ/mol   
10
2nd Energy Level
2,234.30 kJ/mol   
8
1,791.00 kJ/mol   
21
3rd Energy Level
3,400.00 kJ/mol   
16
Not Available   
Electrochemical Equivalent
4.96 g/amp-hr   
3
1.82 g/amp-hr   
35
Electron Work Function
2.14 eV   
99+
5.65 eV   
1
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Anti Corrosion, Ionization   
Atomic Properties
Atomic Number
55   
99+
78   
38
Electron Configuration
[Xe] 6s1   
[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
55   
99+
78   
38
Number of Neutrons
78   
99+
117   
24
Number of Electrons
55   
99+
78   
38
Radius of an Atom
  
  
Atomic Radius
265.00 pm   
1
139.00 pm   
39
Covalent Radius
244.00 pm   
2
136.00 pm   
99+
Van der Waals Radius
343.00 pm   
2
175.00 pm   
36
Atomic Weight
132.91 amu   
99+
47.87 amu   
99+
Atomic Volume
71.07 cm3/mol   
1
9.09 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Tin
  
Iridium
  
Next Element
Barium
  
Gold
  
Valence Electron Potential
8.62 (-eV)   
99+
392.42 (-eV)   
1
Lattice Constant
614.10 pm   
5
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
1.93 g/cm3   
99+
21.45 g/cm3   
11
Density When Liquid (at m.p.)
1.84 g/cm3   
99+
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
1.60 GPa   
99+
230.00 GPa   
6
Young's Modulus
1.70 GPa   
99+
168.00 GPa   
14
Poisson Ratio
Not Available   
0.38   
6
Other Mechanical Properties
Ductile   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
1.87   
99+
21.45   
4
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Permeability
Not Available   
0.00 H/m   
3
Electrical Properties
  
  
Electrical Property
Semiconductor   
Conductor   
Resistivity
205.00 nΩ·m   
17
105.00 nΩ·m   
30
Electrical Conductivity
0.05 106/cm Ω   
35
0.10 106/cm Ω   
21
Electron Affinity
45.50 kJ/mol   
25
205.30 kJ/mol   
2
Thermal Properties
Specific Heat
0.24 J/(kg K)   
23
0.13 J/(kg K)   
39
Molar Heat Capacity
32.21 J/mol·K   
4
25.86 J/mol·K   
35
Thermal Conductivity
35.90 W/m·K   
36
71.60 W/m·K   
24
Critical Temperature
1,938.00 K   
5
Not Available   
Thermal Expansion
97.00 µm/(m·K)   
1
8.80 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
65.90 kJ/mol   
99+
510.50 kJ/mol   
11
Enthalpy of Fusion
2.10 kJ/mol   
99+
19.70 kJ/mol   
12
Enthalpy of Atomization
78.20 kJ/mol   
99+
565.00 kJ/mol   
11
Standard Molar Entropy
85.20 J/mol.K   
3
41.60 J/mol.K   
36
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