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Platinum vs Mercury


Mercury vs Platinum


Periodic Table

Symbol
Pt  
Hg  

Group Number
10  
8
12  
6

Period Number
6  
6  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7440064  
99+
7439976  
99+

Space Group Name
Fm_ 3m  
R_ 3m  

Space Group Number
225.00  
3
166.00  
9

Facts

Interesting Facts
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
  • At room temperature mercury is found in a liquid state.
  • A coin of pound or rupees floats in mercury.
  • Because of its low melting point and boiling point it is used in thermometers.
  

Sources
Mining, Ores of metals, Ores of Minerals  
Mining, Ores of Minerals  

History
  
  

Who Discovered
Antonio de Ulloa  
Ancient Chinese and Indians  

Discovery
In 1735  
Before 2000 BCE  

Abundance
  
  

Abundance In Universe
0.00 %  
20
0.09 %  
2

Abundance In Sun
0.00 %  
19
0.00 %  
30

Abundance In Meteorites
0.00 %  
25
0.00 %  
99+

Abundance In Earth's Crust
0.00 %  
99+
0.05 %  
9

Abundance In Oceans
-  
-  

Abundance In Humans
0.00 %  
24
0.00 %  
24

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.
  
  • It is a liquid metal at room temperature, but it is a toxic heavy metal and hence many uses of mercury are under review or phased out.
  • It is manly used as a catalysts in chemical industry.
  

Industrial Uses
Aerospace Industry, Chemical Industry  
Electrical Industry, Electronic Industry  

Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
Dentistry  

Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Alloys, Mirror Manufacturing, Pharmaceutical Industry  

Biological Properties
  
  

Toxicity
Non Toxic  
Highly Toxic  

Present in Human Body
No  
Yes  

In Blood
0.00 Blood/mg dm-3  
37
0.01 Blood/mg dm-3  
23

In Bone
0.00 p.p.m.  
99+
0.45 p.p.m.  
23

Physical

Melting Point
1,772.00 °C  
16
-38.83 °C  
99+

Boiling Point
3,827.00 °C  
15
356.58 °C  
99+

Appearance
  
  

Physical State
Solid  
Liquid  

Color
Silvery White  
Silver  

Luster
Metallic  
-  

Hardness
  
  

Mohs Hardness
3.50  
12
1.50  
19

Brinell Hardness
300.00 MPa  
99+
5.00 MPa  
99+

Vickers Hardness
400.00 MPa  
99+
0.00 MPa  
99+

Speed of Sound
2,800.00 m/s  
99+
1,451.40 m/s  
99+

Optical Properties
  
  

Refractive Index
2.41  
6
1.00  
99+

Reflectivity
73.00 %  
10
73.00 %  
10

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Pt  
Hg  

Isotopes
  
  

Known Isotopes
35  
4
34  
5

Electronegativity
  
  

Pauling Electronegativity
2.28  
4
2.00  
8

Sanderson Electronegativity
2.28  
5
2.20  
8

Allred Rochow Electronegativity
1.44  
18
1.44  
18

Mulliken-Jaffe Electronegativity
2.20  
6
1.81  
17

Allen Electronegativity
1.72  
19
1.44  
34

Electropositivity
  
  

Pauling Electropositivity
1.72  
99+
2.00  
99+

Ionization Energies
  
  

1st Energy Level
870.00 kJ/mol  
10
1,007.10 kJ/mol  
4

2nd Energy Level
1,791.00 kJ/mol  
22
1,810.00 kJ/mol  
21

3rd Energy Level
2,277.00 kJ/mol  
99+
3,300.00 kJ/mol  
20

4th Energy Level
8,702.00 kJ/mol  
6
1,007.10 kJ/mol  
99+

5th Energy Level
8,702.00 kJ/mol  
9
1,007.00 kJ/mol  
99+

6th Energy Level
8,700.00 kJ/mol  
27
1,007.00 kJ/mol  
99+

7th Energy level
8,700.00 kJ/mol  
23
1,007.00 kJ/mol  
99+

8th Energy Level
8,700.00 kJ/mol  
23
1,007.00 kJ/mol  
99+

9th Energy Level
5,660.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+

10th Energy Level
8,700.00 kJ/mol  
24
1,007.00 kJ/mol  
99+

11th Energy Level
8,700.00 kJ/mol  
21
1,007.00 kJ/mol  
99+

12th Energy Level
8,700.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+

13th Energy Level
8,700.00 kJ/mol  
16
1,007.00 kJ/mol  
99+

14th Energy Level
870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+

15th Energy Level
87,000.00 kJ/mol  
9
100,700.00 kJ/mol  
1

16th Energy Level
870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+

17th Energy Level
870.00 kJ/mol  
27
1,007.00 kJ/mol  
24

18th Energy Level
8,700.00 kJ/mol  
16
1,007.00 kJ/mol  
99+

19th Energy Level
870.00 kJ/mol  
25
1,007.10 kJ/mol  
20

20th Energy Level
870.00 kJ/mol  
15
1,007.00 kJ/mol  
11

21st Energy Level
870.00 kJ/mol  
38
1,007.00 kJ/mol  
33

22nd Energy Level
870.00 kJ/mol  
13
1,007.00 kJ/mol  
8

23rd Energy Level
870.10 kJ/mol  
39
1,007.00 kJ/mol  
36

24th Energy Level
870.00 kJ/mol  
9
1,007.10 kJ/mol  
3

25th Energy Level
870.00 kJ/mol  
7
1,007.10 kJ/mol  
3

26th Energy Level
870.00 kJ/mol  
7
1,007.10 kJ/mol  
3

27th Energy Level
870.10 kJ/mol  
6
1,007.10 kJ/mol  
2

28th Energy Level
870.10 kJ/mol  
9
1,007.10 kJ/mol  
5

29th Energy Level
870.00 kJ/mol  
10
1,007.10 kJ/mol  
6

30th Energy Level
870.00 kJ/mol  
7
1,007.10 kJ/mol  
3

Electrochemical Equivalent
1.82 g/amp-hr  
39
3.74 g/amp-hr  
10

Electron Work Function
5.65 eV  
4
4.49 eV  
20

Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization  
Flammability, Ionization, Solubility  

Atomic

Atomic Number
78  
38
80  
36

Electron Configuration
[Xe] 4f14 5d9 6s1  
[Xe] 4f14 5d10 6s2  

Crystal Structure
Face Centered Cubic (FCC)  
Rhombohedral (RHO)  

Crystal Lattice
FCC-Crystal-Structure-of-Platinum.jpg#100  
RHO-Crystal-Structure-of-Mercury.jpg#100  

Atom
  
  

Number of Protons
78  
38
80  
36

Number of Neutrons
117  
25
121  
23

Number of Electrons
78  
38
80  
36

Radius of an Atom
  
  

Atomic Radius
139.00 pm  
99+
151.00 pm  
34

Covalent Radius
136.00 pm  
99+
132.00 pm  
99+

Van der Waals Radius
175.00 pm  
99+
155.00 pm  
99+

Atomic Weight
47.87 amu  
99+
200.59 amu  
32

Atomic Volume
9.09 cm3/mol  
99+
14.82 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Iridium
  
Gold
  

Next Element
Gold
  
Thallium
  

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

Lattice Constant
392.42 pm  
27
300.50 pm  
99+

Lattice Angles
π/2, π/2, π/2  
-  

Lattice C/A Ratio
1.56  
99+
0.42  
99+

Mechanical

Density
  
  

Density At Room Temperature
21.45 g/cm3  
11
13.53 g/cm3  
25

Density When Liquid (at m.p.)
19.77 g/cm3  
12
13.55 g/cm3  
27

Tensile Strength
125.00 MPa  
26
15.00 MPa  
99+

Viscosity
0.00  
16
0.00  
4

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
22

Vapor Pressure at 2000 K
0.07 (Pa)  
18
0.00 (Pa)  
99+

Elasticity properties
  
  

Shear Modulus
61.00 GPa  
14
30.00 GPa  
27

Bulk Modulus
230.00 GPa  
6
25.00 GPa  
99+

Young's Modulus
168.00 GPa  
15
45.00 GPa  
99+

Poisson Ratio
0.38  
6
0.44  
3

Other Mechanical Properties
Ductile, Malleable  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
21.45  
13
13.53  
27

Magnetic Ordering
Paramagnetic  
Diamagnetic  

Permeability
0.00 H/m  
14
0.00 H/m  
10

Susceptibility
0.00  
20
0.00  
20

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
105.00 nΩ·m  
30
961.00 nΩ·m  
1

Electrical Conductivity
0.10 106/cm Ω  
26
0.01 106/cm Ω  
99+

Electron Affinity
205.30 kJ/mol  
2
0.00 kJ/mol  
99+

Thermal

Specific Heat
0.13 J/(kg K)  
40
0.14 J/(kg K)  
39

Molar Heat Capacity
25.86 J/mol·K  
99+
27.98 J/mol·K  
16

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

Critical Temperature
2,041.00 K  
19
1,750.00 K  
33

Thermal Expansion
8.80 µm/(m·K)  
99+
60.40 µm/(m·K)  
5

Enthalpy
  
  

Enthalpy of Vaporization
510.50 kJ/mol  
15
56.90 kJ/mol  
99+

Enthalpy of Fusion
19.70 kJ/mol  
12
2.29 kJ/mol  
99+

Enthalpy of Atomization
565.00 kJ/mol  
15
61.50 kJ/mol  
99+

Standard Molar Entropy
41.60 J/mol.K  
99+
75.80 J/mol.K  
6

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