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Francium vs Platinum

Francium
Platinum
Platinum vs Francium


Periodic Table
Symbol
Fr   
Pt   
Group Number
1   
17
10   
8
Period Number
7   
6   
Block
s block   
d block   
Element Family
Alkali   
Transition Metal   
CAS Number
7440735   
18
7440064   
99+
Space Group Name
Not Available   
Fm_ 3m   
Space Group Number
Not Available   
225.00   
2
Facts
Interesting Facts
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
  
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
Sources
Formed by Decay Process, Mining   
Mining, Ores of metals, Ores of Minerals   
History
  
  
Who Discovered
Marguerite Perey   
Antonio de Ulloa   
Discovery
In 1939   
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
  • Francium has no known uses as it has a half life of only 22 minutes.
  
  • 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
NA   
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
NA   
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
27.00 °C   
99+
1,772.00 °C   
16
Boiling Point
677.00 °C   
99+
3,827.00 °C   
15
Appearance
  
  
Physical State
Solid   
Solid   
Color
NA   
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
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
Fr   
Pt   
Isotopes
  
  
Known Isotopes
33   
6
35   
4
Electronegativity
  
  
Pauling Electronegativity
0.70   
99+
2.28   
3
Allred Rochow Electronegativity
0.86   
99+
1.44   
17
Mulliken-Jaffe Electronegativity
0.68   
25
Not Available   
Allen Electronegativity
0.67   
99+
1.72   
16
Electropositivity
  
  
Pauling Electropositivity
3.30   
1
1.72   
99+
Ionization Energies
  
  
1st Energy Level
380.00 kJ/mol   
99+
870.00 kJ/mol   
10
2nd Energy Level
Not Available   
1,791.00 kJ/mol   
21
Electrochemical Equivalent
8.32 g/amp-hr   
1
1.82 g/amp-hr   
35
Electron Work Function
Not Available   
5.65 eV   
1
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Chemical Stability, Anti Corrosion, Ionization   
Atomic Properties
Atomic Number
87   
31
78   
38
Electron Configuration
[Rn] 7s1   
[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
87   
31
78   
38
Number of Neutrons
136   
17
117   
24
Number of Electrons
87   
31
78   
38
Radius of an Atom
  
  
Atomic Radius
Not Available   
139.00 pm   
39
Covalent Radius
260.00 pm   
1
136.00 pm   
99+
Van der Waals Radius
348.00 pm   
1
175.00 pm   
36
Atomic Weight
223.00 amu   
27
47.87 amu   
99+
Atomic Volume
Not Available   
9.09 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Polonium
  
Iridium
  
Next Element
Radium
  
Gold
  
Valence Electron Potential
8.00 (-eV)   
99+
392.42 (-eV)   
1
Lattice Constant
Not Available   
392.42 pm   
24
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
1.87 g/cm3   
99+
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
Not Available   
21.45   
4
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Permeability
Not Available   
0.00 H/m   
3
Electrical Properties
  
  
Electrical Property
Poor Conductor   
Conductor   
Resistivity
3.00 nΩ·m   
99+
105.00 nΩ·m   
30
Electrical Conductivity
0.03 106/cm Ω   
40
0.10 106/cm Ω   
21
Electron Affinity
Not Available   
205.30 kJ/mol   
2
Thermal Properties
Specific Heat
Not Available   
0.13 J/(kg K)   
39
Molar Heat Capacity
Not Available   
25.86 J/mol·K   
35
Thermal Conductivity
15.00 W/m·K   
99+
71.60 W/m·K   
24
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
8.80 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
510.50 kJ/mol   
11
Enthalpy of Fusion
Not Available   
19.70 kJ/mol   
12
Enthalpy of Atomization
71.00 kJ/mol   
99+
565.00 kJ/mol   
11
Standard Molar Entropy
Not Available   
41.60 J/mol.K   
36
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