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Mercury vs Silver


Silver vs Mercury


Periodic Table

Symbol
Hg  
Ag  

Group Number
12  
6
11  
7

Period Number
6  
5  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7439976  
99+
7440224  
99+

Space Group Name
R_ 3m  
Fm_ 3m  

Space Group Number
166.00  
9
225.00  
3

Facts

Interesting Facts
  • 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.
  
  • It is the most reflective element.
  • Silver is the second most ductile metal after Gold.
  • It is also used in Dentistry as a dental alloys for clips and crowning.
  

Sources
Mining, Ores of Minerals  
Earth's crust, Found in Minerals, Ores of metals  

History
  
  

Who Discovered
Ancient Chinese and Indians  
-  

Discovery
Before 2000 BCE  
Before 5000 BC  

Abundance
  
  

Abundance In Universe
0.09 %  
2
0.00 %  
27

Abundance In Sun
0.00 %  
30
0.00 %  
26

Abundance In Meteorites
0.00 %  
99+
0.00 %  
38

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

Abundance In Oceans
-  
0.00 %  
19

Abundance In Humans
0.00 %  
24
0.00 %  
24

Uses

Uses & Benefits
  • 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.
  
  • Silver is mainly used for Jewelry and show piece.
  • It is used for manufacturing high quality mirrors due to its reflectivity property.
  

Industrial Uses
Electrical Industry, Electronic Industry  
Chemical Industry, Clothing Industry, Electrical Industry  

Medical Uses
Dentistry  
Dentistry, Pharmaceutical Industry  

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

Biological Properties
  
  

Toxicity
Highly Toxic  
Non Toxic  

Present in Human Body
Yes  
Yes  

In Blood
0.01 Blood/mg dm-3  
23
0.00 Blood/mg dm-3  
29

In Bone
0.45 p.p.m.  
23
0.44 p.p.m.  
24

Physical

Melting Point
-38.83 °C  
99+
961.93 °C  
99+

Boiling Point
356.58 °C  
99+
2,212.00 °C  
99+

Appearance
  
  

Physical State
Liquid  
Solid  

Color
Silver  
Silvery White  

Luster
-  
Metallic  

Hardness
  
  

Mohs Hardness
1.50  
19
2.50  
15

Brinell Hardness
5.00 MPa  
99+
251.00 MPa  
99+

Vickers Hardness
0.00 MPa  
99+
229.00 MPa  
99+

Speed of Sound
1,451.40 m/s  
99+
2,680.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.00  
99+
0.16  
99+

Reflectivity
73.00 %  
10
97.00 %  
1

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Hg  
Ag  

Isotopes
  
  

Known Isotopes
34  
5
36  
3

Electronegativity
  
  

Pauling Electronegativity
2.00  
8
1.93  
10

Sanderson Electronegativity
2.20  
8
1.83  
14

Allred Rochow Electronegativity
1.44  
18
1.42  
19

Mulliken-Jaffe Electronegativity
1.81  
17
1.47  
28

Allen Electronegativity
1.44  
34
1.87  
10

Electropositivity
  
  

Pauling Electropositivity
2.00  
99+
2.07  
99+

Ionization Energies
  
  

1st Energy Level
1,007.10 kJ/mol  
4
731.00 kJ/mol  
27

2nd Energy Level
1,810.00 kJ/mol  
21
2,070.00 kJ/mol  
11

3rd Energy Level
3,300.00 kJ/mol  
20
3,361.00 kJ/mol  
19

4th Energy Level
1,007.10 kJ/mol  
99+
7,310.00 kJ/mol  
10

5th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
24

6th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
39

7th Energy level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
33

8th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
31

9th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
27

10th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
32

11th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
31

12th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
99+

13th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
25

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

15th Energy Level
100,700.00 kJ/mol  
1
73,100.00 kJ/mol  
22

16th Energy Level
1,007.00 kJ/mol  
99+
73,100.00 kJ/mol  
17

17th Energy Level
1,007.00 kJ/mol  
24
731.00 kJ/mol  
38

18th Energy Level
1,007.00 kJ/mol  
99+
7,310.00 kJ/mol  
28

19th Energy Level
1,007.10 kJ/mol  
20
731.00 kJ/mol  
35

20th Energy Level
1,007.00 kJ/mol  
11
731.00 kJ/mol  
29

21st Energy Level
1,007.00 kJ/mol  
33
731.00 kJ/mol  
99+

22nd Energy Level
1,007.00 kJ/mol  
8
731.00 kJ/mol  
23

23rd Energy Level
1,007.00 kJ/mol  
36
731.00 kJ/mol  
99+

24th Energy Level
1,007.10 kJ/mol  
3
731.00 kJ/mol  
22

25th Energy Level
1,007.10 kJ/mol  
3
731.00 kJ/mol  
22

26th Energy Level
1,007.10 kJ/mol  
3
731.00 kJ/mol  
22

27th Energy Level
1,007.10 kJ/mol  
2
731.00 kJ/mol  
21

28th Energy Level
1,007.10 kJ/mol  
5
731.00 kJ/mol  
27

29th Energy Level
1,007.10 kJ/mol  
6
731.00 kJ/mol  
28

30th Energy Level
1,007.10 kJ/mol  
3
731.00 kJ/mol  
22

Electrochemical Equivalent
3.74 g/amp-hr  
10
4.02 g/amp-hr  
7

Electron Work Function
4.49 eV  
20
4.26 eV  
27

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

Atomic

Atomic Number
80  
36
47  
99+

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

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

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

Atom
  
  

Number of Protons
80  
36
47  
99+

Number of Neutrons
121  
23
61  
99+

Number of Electrons
80  
36
47  
99+

Radius of an Atom
  
  

Atomic Radius
151.00 pm  
34
144.00 pm  
38

Covalent Radius
132.00 pm  
99+
145.00 pm  
99+

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

Atomic Weight
200.59 amu  
32
107.87 amu  
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Gold
  
Palladium
  

Next Element
Thallium
  
Cadmium
  

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

Lattice Constant
300.50 pm  
99+
408.53 pm  
23

Lattice Angles
-  
π/2, π/2, π/2  

Lattice C/A Ratio
0.42  
99+
1.59  
26

Mechanical

Density
  
  

Density At Room Temperature
13.53 g/cm3  
25
10.49 g/cm3  
37

Density When Liquid (at m.p.)
13.55 g/cm3  
27
9.32 g/cm3  
99+

Tensile Strength
15.00 MPa  
99+
170.00 MPa  
21

Viscosity
0.00  
4
0.00  
23

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
14

Vapor Pressure at 2000 K
0.00 (Pa)  
99+
0.00 (Pa)  
38

Elasticity properties
  
  

Shear Modulus
30.00 GPa  
27
30.00 GPa  
27

Bulk Modulus
25.00 GPa  
99+
100.00 GPa  
16

Young's Modulus
45.00 GPa  
99+
83.00 GPa  
25

Poisson Ratio
0.44  
3
0.37  
7

Other Mechanical Properties
-  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
13.53  
27
10.50  
39

Magnetic Ordering
Diamagnetic  
Diamagnetic  

Permeability
0.00 H/m  
10
0.00 H/m  
17

Susceptibility
0.00  
20
0.00  
32

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

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

Electrical Conductivity
0.01 106/cm Ω  
99+
0.63 106/cm Ω  
1

Electron Affinity
0.00 kJ/mol  
99+
125.60 kJ/mol  
5

Thermal

Specific Heat
0.14 J/(kg K)  
39
0.24 J/(kg K)  
25

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

Thermal Conductivity
8.30 W/m·K  
99+
429.00 W/m·K  
1

Critical Temperature
1,750.00 K  
33
1,235.00 K  
99+

Thermal Expansion
60.40 µm/(m·K)  
5
18.90 µm/(m·K)  
25

Enthalpy
  
  

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

Enthalpy of Fusion
2.29 kJ/mol  
99+
11.30 kJ/mol  
37

Enthalpy of Atomization
61.50 kJ/mol  
99+
284.50 kJ/mol  
99+

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

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