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Platinum Francium Comparison


Francium Platinum comparison


Periodic Table

Symbol
Pt   
Fr   

Group Number
10   
8
1   
17

Period Number
6   
7   

Block
d block   
s block   

Element Family
Transition Metal   
Alkali   

CAS Number
7440064   
99+
7440735   
18

Space Group Name
Fm_ 3m   
Not Available   

Space Group Number
225.00   
2
Not Available   

Facts

Interesting Facts
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
  

Sources
Mining, Ores of metals, Ores of Minerals   
Formed by Decay Process, Mining   

History
  
  

Who Discovered
Antonio de Ulloa   
Marguerite Perey   

Discovery
In 1735   
In 1939   

Abundance
  
  

Abundance In Universe
5 * 10-7 %   
19
Not Available   

Abundance In Sun
~0.0000009 %   
19
~-9999 %   

Abundance In Meteorites
0.00 %   
25
Not Available   

Abundance In Earth's Crust
0.00 %   
99+
Not Available   

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.
  
  • Francium has no known uses as it has a half life of only 22 minutes.
  

Industrial Uses
Aerospace Industry, Chemical Industry   
NA   

Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
NA   

Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
NA   

Biological Properties
  
  

Toxicity
Non Toxic   
NA   

Present in Human Body
No   
No   

In Blood
Not Available   
0.00 Blood/mg dm-3   
37

In Bone
Not Available   
0.00 p.p.m.   
36

Physical Properties

Melting Point
1,772.00 °C   
16
27.00 °C   
99+

Boiling Point
3,827.00 °C   
15
677.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
NA   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
3.50   
11
Not Available   

Brinell Hardness
300.00 MPa   
34
Not Available   

Vickers Hardness
400.00 MPa   
25
Not Available   

Speed of Sound
2,800.00 m/s   
29
Not Available   

Optical Properties
  
  

Reflectivity
73.00 %   
8
Not Available   

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
Pt   
Fr   

Isotopes
  
  

Known Isotopes
35   
4
33   
6

Electronegativity
  
  

Pauling Electronegativity
2.28   
3
0.70   
99+

Allred Rochow Electronegativity
1.44   
17
0.86   
99+

Mulliken-Jaffe Electronegativity
Not Available   
0.68   
25

Allen Electronegativity
1.72   
16
0.67   
99+

Electropositivity
  
  

Pauling Electropositivity
1.72   
99+
3.30   
1

Ionization Energies
  
  

1st Energy Level
870.00 kJ/mol   
10
380.00 kJ/mol   
99+

2nd Energy Level
1,791.00 kJ/mol   
21
Not Available   

Electrochemical Equivalent
1.82 g/amp-hr   
35
8.32 g/amp-hr   
1

Electron Work Function
5.65 eV   
1
Not Available   

Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   

Atomic Properties

Atomic Number
78   
38
87   
31

Electron Configuration
[Xe] 4f14 5d9 6s1   
[Rn] 7s1   

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
87   
31

Number of Neutrons
117   
24
136   
17

Number of Electrons
78   
38
87   
31

Radius of an Atom
  
  

Atomic Radius
139.00 pm   
39
Not Available   

Covalent Radius
136.00 pm   
99+
260.00 pm   
1

Van der Waals Radius
175.00 pm   
36
348.00 pm   
1

Atomic Weight
47.87 amu   
99+
223.00 amu   
27

Atomic Volume
9.09 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Iridium
  
Polonium
  

Next Element
Gold
  
Radium
  

Valence Electron Potential
392.42 (-eV)   
1
8.00 (-eV)   
99+

Lattice Constant
392.42 pm   
24
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
21.45 g/cm3   
11
1.87 g/cm3   
99+

Density When Liquid (at m.p.)
19.77 g/cm3   
2
Not Available   

Tensile Strength
125.00 MPa   
14
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 2000 K
0.07 (Pa)   
18
Not Available   

Elasticity properties
  
  

Shear Modulus
61.00 GPa   
14
Not Available   

Bulk Modulus
230.00 GPa   
6
Not Available   

Young's Modulus
168.00 GPa   
14
Not Available   

Poisson Ratio
0.38   
6
Not Available   

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
21.45   
4
Not Available   

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Permeability
0.00 H/m   
3
Not Available   

Electrical Properties
  
  

Electrical Property
Conductor   
Poor Conductor   

Resistivity
105.00 nΩ·m   
30
3.00 nΩ·m   
99+

Electrical Conductivity
0.10 106/cm Ω   
21
0.03 106/cm Ω   
40

Electron Affinity
205.30 kJ/mol   
2
Not Available   

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
Not Available   

Molar Heat Capacity
25.86 J/mol·K   
35
Not Available   

Thermal Conductivity
71.60 W/m·K   
24
15.00 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
8.80 µm/(m·K)   
99+
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
510.50 kJ/mol   
11
Not Available   

Enthalpy of Fusion
19.70 kJ/mol   
12
Not Available   

Enthalpy of Atomization
565.00 kJ/mol   
11
71.00 kJ/mol   
99+

Standard Molar Entropy
41.60 J/mol.K   
36
Not Available   

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