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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
-  
Fm_ 3m  
Space Group Number
225.00  
3
225.00  
3
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
0.00 %  
40
0.00 %  
20
Abundance In Sun
0.00 %  
30
0.00 %  
19
Abundance In Meteorites
0.00 %  
99+
0.00 %  
25
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
0.00 %  
24
0.00 %  
24
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
-  
Aerospace Industry, Chemical Industry  
Medical Uses
-  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
-  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
-  
Non Toxic  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
37
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
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
-  
Silvery White  
Luster
-  
Metallic  
Hardness
  
  
Mohs Hardness
0.20  
27
3.50  
12
Brinell Hardness
119.00 MPa  
99+
300.00 MPa  
99+
Vickers Hardness
300.00 MPa  
99+
400.00 MPa  
99+
Speed of Sound
2,440.00 m/s  
99+
2,800.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.70  
27
2.41  
6
Reflectivity
72.00 %  
11
73.00 %  
10
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Fr  
Pt  
Isotopes
  
  
Known Isotopes
33  
6
35  
4
Electronegativity
  
  
Pauling Electronegativity
0.70  
99+
2.28  
4
Sanderson Electronegativity
0.70  
99+
2.28  
5
Allred Rochow Electronegativity
0.86  
99+
1.44  
18
Mulliken-Jaffe Electronegativity
0.68  
99+
2.20  
6
Allen Electronegativity
0.67  
99+
1.72  
19
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
392.80 kJ/mol  
99+
1,791.00 kJ/mol  
22
3rd Energy Level
392.80 kJ/mol  
99+
2,277.00 kJ/mol  
99+
4th Energy Level
392.80 kJ/mol  
99+
8,702.00 kJ/mol  
6
5th Energy Level
392.00 kJ/mol  
99+
8,702.00 kJ/mol  
9
6th Energy Level
3,920.00 kJ/mol  
99+
8,700.00 kJ/mol  
27
7th Energy level
3,920.00 kJ/mol  
99+
8,700.00 kJ/mol  
23
8th Energy Level
3,920.00 kJ/mol  
99+
8,700.00 kJ/mol  
23
9th Energy Level
3,920.00 kJ/mol  
99+
5,660.00 kJ/mol  
99+
10th Energy Level
392.00 kJ/mol  
99+
8,700.00 kJ/mol  
24
11th Energy Level
392.00 kJ/mol  
99+
8,700.00 kJ/mol  
21
12th Energy Level
38,000.00 kJ/mol  
23
8,700.00 kJ/mol  
99+
13th Energy Level
3,920.00 kJ/mol  
99+
8,700.00 kJ/mol  
16
14th Energy Level
380.00 kJ/mol  
99+
870.00 kJ/mol  
99+
15th Energy Level
67,700.00 kJ/mol  
32
87,000.00 kJ/mol  
9
16th Energy Level
39,200.00 kJ/mol  
99+
870.00 kJ/mol  
99+
17th Energy Level
392.00 kJ/mol  
99+
870.00 kJ/mol  
27
18th Energy Level
3,920.00 kJ/mol  
99+
8,700.00 kJ/mol  
16
19th Energy Level
392.80 kJ/mol  
99+
870.00 kJ/mol  
25
20th Energy Level
392.00 kJ/mol  
99+
870.00 kJ/mol  
15
21st Energy Level
392.00 kJ/mol  
99+
870.00 kJ/mol  
38
22nd Energy Level
392.00 kJ/mol  
99+
870.00 kJ/mol  
13
23rd Energy Level
392.80 kJ/mol  
99+
870.10 kJ/mol  
39
24th Energy Level
392.00 kJ/mol  
99+
870.00 kJ/mol  
9
25th Energy Level
392.00 kJ/mol  
99+
870.00 kJ/mol  
7
26th Energy Level
392.80 kJ/mol  
99+
870.00 kJ/mol  
7
27th Energy Level
392.00 kJ/mol  
99+
870.10 kJ/mol  
6
28th Energy Level
380.00 kJ/mol  
99+
870.10 kJ/mol  
9
29th Energy Level
392.00 kJ/mol  
99+
870.00 kJ/mol  
10
30th Energy Level
677.00 kJ/mol  
31
870.00 kJ/mol  
7
Electrochemical Equivalent
8.32 g/amp-hr  
1
1.82 g/amp-hr  
39
Electron Work Function
4.07 eV  
33
5.65 eV  
4
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Chemical Stability, Anti Corrosion, Ionization  
Atomic
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  
18
117  
25
Number of Electrons
87  
31
78  
38
Radius of an Atom
  
  
Atomic Radius
348.00 pm  
1
139.00 pm  
99+
Covalent Radius
260.00 pm  
1
136.00 pm  
99+
Van der Waals Radius
348.00 pm  
1
175.00 pm  
99+
Atomic Weight
223.00 amu  
27
47.87 amu  
99+
Atomic Volume
71.00 cm3/mol  
2
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
440.00 pm  
21
392.42 pm  
27
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.56  
99+
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
1.87 g/cm3  
99+
21.45 g/cm3  
11
Density When Liquid (at m.p.)
1.87 g/cm3  
99+
19.77 g/cm3  
12
Tensile Strength
50.00 MPa  
38
125.00 MPa  
26
Viscosity
0.00  
25
0.00  
16
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
16
Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.07 (Pa)  
18
Elasticity properties
  
  
Shear Modulus
3.60 GPa  
99+
61.00 GPa  
14
Bulk Modulus
6.00 GPa  
99+
230.00 GPa  
6
Young's Modulus
0.00 GPa  
99+
168.00 GPa  
15
Poisson Ratio
0.44  
3
0.38  
6
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
0.87  
99+
21.45  
13
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
13
0.00 H/m  
14
Susceptibility
0.00  
24
0.00  
20
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  
99+
0.10 106/cm Ω  
26
Electron Affinity
0.70 kJ/mol  
99+
205.30 kJ/mol  
2
Thermal
Specific Heat
0.15 J/(kg K)  
37
0.13 J/(kg K)  
40
Molar Heat Capacity
27.00 J/mol·K  
29
25.86 J/mol·K  
99+
Thermal Conductivity
15.00 W/m·K  
99+
71.60 W/m·K  
24
Critical Temperature
300.00 K  
99+
2,041.00 K  
19
Thermal Expansion
18.90 µm/(m·K)  
25
8.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
67.00 kJ/mol  
99+
510.50 kJ/mol  
15
Enthalpy of Fusion
2.30 kJ/mol  
99+
19.70 kJ/mol  
12
Enthalpy of Atomization
71.00 kJ/mol  
99+
565.00 kJ/mol  
15
Standard Molar Entropy
42.00 J/mol.K  
99+
41.60 J/mol.K  
99+
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