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Gold Mercury Comparison


Mercury Gold comparison


Periodic Table

Symbol
Au  
Hg  

Group Number
11  
7
12  
6

Period Number
6  
6  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7440575  
31
7439976  
99+

Space Group Name
Fm_ 3m  
R_ 3m  

Space Group Number
225.00  
3
166.00  
9

Facts

Interesting Facts
  • It is found in copper ores and from the crust of the earth.
  • It is the most malleable and ductile metal.
  • Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
  • 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
Earth's crust, Mining, Ores of metals  
Mining, Ores of Minerals  

History
  
  

Who Discovered
-  
Ancient Chinese and Indians  

Discovery
Before 6000 BCE  
Before 2000 BCE  

Abundance
  
  

Abundance In Universe
0.00 %  
27
0.09 %  
2

Abundance In Sun
0.00 %  
26
0.00 %  
30

Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+

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

Abundance In Oceans
0.00 %  
21
-  

Abundance In Humans
0.00 %  
21
0.00 %  
24

Uses

Uses & Benefits
  • Gold metal is mainly used for Jewelry, bullion, coinage, etc.
  • It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  
  • 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
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  
Electrical Industry, Electronic Industry  

Medical Uses
Dentistry, Pharmaceutical Industry  
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
Yes  
Yes  

In Blood
0.00 Blood/mg dm-3  
38
0.01 Blood/mg dm-3  
23

In Bone
0.02 p.p.m.  
35
0.45 p.p.m.  
23

Physical

Melting Point
1,064.43 °C  
99+
-38.83 °C  
99+

Boiling Point
2,807.00 °C  
37
356.58 °C  
99+

Appearance
  
  

Physical State
Solid  
Liquid  

Color
Gold  
Silver  

Luster
Metallic  
-  

Hardness
  
  

Mohs Hardness
2.50  
15
1.50  
19

Brinell Hardness
194.00 MPa  
99+
5.00 MPa  
99+

Vickers Hardness
216.00 MPa  
99+
0.00 MPa  
99+

Speed of Sound
2,030.00 m/s  
99+
1,451.40 m/s  
99+

Optical Properties
  
  

Refractive Index
0.47  
99+
1.00  
99+

Reflectivity
95.00 %  
2
73.00 %  
10

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Au  
Hg  

Isotopes
  
  

Known Isotopes
36  
3
34  
5

Electronegativity
  
  

Pauling Electronegativity
2.54  
2
2.00  
8

Sanderson Electronegativity
1.50  
18
2.20  
8

Allred Rochow Electronegativity
1.42  
19
1.44  
18

Mulliken-Jaffe Electronegativity
1.87  
15
1.81  
17

Allen Electronegativity
1.92  
7
1.44  
34

Electropositivity
  
  

Pauling Electropositivity
1.46  
99+
2.00  
99+

Ionization Energies
  
  

1st Energy Level
890.10 kJ/mol  
8
1,007.10 kJ/mol  
4

2nd Energy Level
1,980.00 kJ/mol  
12
1,810.00 kJ/mol  
21

3rd Energy Level
2,856.00 kJ/mol  
33
3,300.00 kJ/mol  
20

4th Energy Level
890.10 kJ/mol  
99+
1,007.10 kJ/mol  
99+

5th Energy Level
8,901.00 kJ/mol  
6
1,007.00 kJ/mol  
99+

6th Energy Level
8,901.00 kJ/mol  
24
1,007.00 kJ/mol  
99+

7th Energy level
8,901.00 kJ/mol  
21
1,007.00 kJ/mol  
99+

8th Energy Level
8,900.00 kJ/mol  
20
1,007.00 kJ/mol  
99+

9th Energy Level
8,901.00 kJ/mol  
20
1,007.00 kJ/mol  
99+

10th Energy Level
8,901.00 kJ/mol  
21
1,007.00 kJ/mol  
99+

11th Energy Level
8,901.00 kJ/mol  
19
1,007.00 kJ/mol  
99+

12th Energy Level
8,900.00 kJ/mol  
39
1,007.00 kJ/mol  
99+

13th Energy Level
8,900.00 kJ/mol  
14
1,007.00 kJ/mol  
99+

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

15th Energy Level
89,000.00 kJ/mol  
7
100,700.00 kJ/mol  
1

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

17th Energy Level
890.10 kJ/mol  
25
1,007.00 kJ/mol  
24

18th Energy Level
8,901.00 kJ/mol  
14
1,007.00 kJ/mol  
99+

19th Energy Level
890.10 kJ/mol  
23
1,007.10 kJ/mol  
20

20th Energy Level
890.00 kJ/mol  
13
1,007.00 kJ/mol  
11

21st Energy Level
890.10 kJ/mol  
35
1,007.00 kJ/mol  
33

22nd Energy Level
890.00 kJ/mol  
11
1,007.00 kJ/mol  
8

23rd Energy Level
890.10 kJ/mol  
38
1,007.00 kJ/mol  
36

24th Energy Level
890.10 kJ/mol  
6
1,007.10 kJ/mol  
3

25th Energy Level
890.00 kJ/mol  
5
1,007.10 kJ/mol  
3

26th Energy Level
890.10 kJ/mol  
5
1,007.10 kJ/mol  
3

27th Energy Level
890.10 kJ/mol  
4
1,007.10 kJ/mol  
2

28th Energy Level
890.10 kJ/mol  
7
1,007.10 kJ/mol  
5

29th Energy Level
890.10 kJ/mol  
8
1,007.10 kJ/mol  
6

30th Energy Level
890.10 kJ/mol  
5
1,007.10 kJ/mol  
3

Electrochemical Equivalent
2.45 g/amp-hr  
25
3.74 g/amp-hr  
10

Electron Work Function
5.10 eV  
8
4.49 eV  
20

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

Atomic

Atomic Number
79  
37
80  
36

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

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

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

Atom
  
  

Number of Protons
79  
37
80  
36

Number of Neutrons
118  
24
121  
23

Number of Electrons
79  
37
80  
36

Radius of an Atom
  
  

Atomic Radius
151.00 pm  
34
151.00 pm  
34

Covalent Radius
144.00 pm  
99+
132.00 pm  
99+

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

Atomic Weight
196.97 amu  
33
200.59 amu  
32

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

Adjacent Atomic Numbers
  
  

Previous Element
Platinum
  
Gold
  

Next Element
Mercury
  
Thallium
  

Valence Electron Potential
43.40 (-eV)  
99+
28.20 (-eV)  
99+

Lattice Constant
407.82 pm  
24
300.50 pm  
99+

Lattice Angles
π/2, π/2, π/2  
-  

Lattice C/A Ratio
1.61  
18
0.42  
99+

Mechanical

Density
  
  

Density At Room Temperature
19.30 g/cm3  
15
13.53 g/cm3  
25

Density When Liquid (at m.p.)
17.31 g/cm3  
16
13.55 g/cm3  
27

Tensile Strength
120.00 MPa  
27
15.00 MPa  
99+

Viscosity
0.00  
23
0.00  
4

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
25
0.00 (Pa)  
22

Vapor Pressure at 2000 K
67.00 (Pa)  
4
0.00 (Pa)  
99+

Elasticity properties
  
  

Shear Modulus
27.00 GPa  
34
30.00 GPa  
27

Bulk Modulus
180.00 GPa  
9
25.00 GPa  
99+

Young's Modulus
79.00 GPa  
26
45.00 GPa  
99+

Poisson Ratio
0.40  
4
0.44  
3

Other Mechanical Properties
Ductile, Malleable  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
19.32  
17
13.53  
27

Magnetic Ordering
Diamagnetic  
Diamagnetic  

Permeability
0.00 H/m  
10
0.00 H/m  
10

Susceptibility
0.00  
22
0.00  
20

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
2.20 nΩ·m  
99+
961.00 nΩ·m  
1

Electrical Conductivity
0.45 106/cm Ω  
3
0.01 106/cm Ω  
99+

Electron Affinity
222.80 kJ/mol  
1
0.00 kJ/mol  
99+

Thermal

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

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

Thermal Conductivity
318.00 W/m·K  
3
8.30 W/m·K  
99+

Critical Temperature
1,337.00 K  
99+
1,750.00 K  
33

Thermal Expansion
14.20 µm/(m·K)  
29
60.40 µm/(m·K)  
5

Enthalpy
  
  

Enthalpy of Vaporization
324.40 kJ/mol  
99+
56.90 kJ/mol  
99+

Enthalpy of Fusion
12.55 kJ/mol  
33
2.29 kJ/mol  
99+

Enthalpy of Atomization
364.00 kJ/mol  
34
61.50 kJ/mol  
99+

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

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