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Lithium Mercury Comparison

Lithium
Mercury
Mercury Lithium comparison


Periodic Table
Symbol
Li  
Hg  
Group Number
1  
17
12  
6
Period Number
2  
6  
Block
s block  
d block  
Element Family
Alkali  
Transition Metal  
CAS Number
7439932  
99+
7439976  
99+
Space Group Name
Im_ 3m  
R_ 3m  
Space Group Number
229.00  
2
166.00  
9
Facts
Interesting Facts
  • Heat capacity of Lithium is very high.
  • Lithium inflammable and highly explosive metal, hence it has to be stored properly.
  
  • 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
Found in Minerals, Mining  
Mining, Ores of Minerals  
History
  
  
Who Discovered
Johan August Arfwedson  
Ancient Chinese and Indians  
Discovery
In 1817  
Before 2000 BCE  
Abundance
  
  
Abundance In Universe
0.00 %  
19
0.09 %  
2
Abundance In Sun
0.00 %  
11
0.00 %  
30
Abundance In Meteorites
0.00 %  
22
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.05 %  
9
Abundance In Oceans
0.00 %  
15
-  
Abundance In Humans
0.00 %  
19
0.00 %  
24
Uses
Uses & Benefits
  • The main usage of Lithium is manufacturing rechargeable batteries for electronic equipment and gadgets.
  • it is also used in manufacturing non-rechargeable batteries.
  
  • 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, Electrical Industry, Electronic Industry  
Electrical Industry, Electronic Industry  
Medical Uses
-  
Dentistry  
Other Uses
Alloys  
Alloys, Mirror Manufacturing, Pharmaceutical Industry  
Biological Properties
  
  
Toxicity
-  
Highly Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
27
0.01 Blood/mg dm-3  
23
In Bone
1.30 p.p.m.  
18
0.45 p.p.m.  
23
Physical
Melting Point
180.54 °C  
99+
-38.83 °C  
99+
Boiling Point
1,347.00 °C  
99+
356.58 °C  
99+
Appearance
  
  
Physical State
Solid  
Liquid  
Color
Silvery White  
Silver  
Luster
-  
-  
Hardness
  
  
Mohs Hardness
0.60  
23
1.50  
19
Brinell Hardness
5.00 MPa  
99+
5.00 MPa  
99+
Vickers Hardness
5.30 MPa  
99+
0.00 MPa  
99+
Speed of Sound
6,000.00 m/s  
6
1,451.40 m/s  
99+
Optical Properties
  
  
Refractive Index
1.35  
99+
1.00  
99+
Reflectivity
95.00 %  
2
73.00 %  
10
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Li  
Hg  
Isotopes
  
  
Known Isotopes
8  
30
34  
5
Electronegativity
  
  
Pauling Electronegativity
0.98  
99+
2.00  
8
Sanderson Electronegativity
0.89  
99+
2.20  
8
Allred Rochow Electronegativity
0.97  
39
1.44  
18
Mulliken-Jaffe Electronegativity
0.97  
99+
1.81  
17
Allen Electronegativity
0.91  
99+
1.44  
34
Electropositivity
  
  
Pauling Electropositivity
3.02  
8
2.00  
99+
Ionization Energies
  
  
1st Energy Level
520.20 kJ/mol  
99+
1,007.10 kJ/mol  
4
2nd Energy Level
7,298.10 kJ/mol  
3
1,810.00 kJ/mol  
21
3rd Energy Level
11,815.00 kJ/mol  
4
3,300.00 kJ/mol  
20
4th Energy Level
520.20 kJ/mol  
99+
1,007.10 kJ/mol  
99+
5th Energy Level
5,200.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
6th Energy Level
5,200.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
7th Energy level
5,202.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
8th Energy Level
730.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
9th Energy Level
5,200.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
10th Energy Level
520.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
11th Energy Level
5,202.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
12th Energy Level
5,200.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
13th Energy Level
5,200.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
14th Energy Level
520.20 kJ/mol  
99+
1,007.00 kJ/mol  
99+
15th Energy Level
52,000.00 kJ/mol  
99+
100,700.00 kJ/mol  
1
16th Energy Level
52,000.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
17th Energy Level
520.20 kJ/mol  
99+
1,007.00 kJ/mol  
24
18th Energy Level
520.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
19th Energy Level
520.20 kJ/mol  
99+
1,007.10 kJ/mol  
20
20th Energy Level
520.00 kJ/mol  
99+
1,007.00 kJ/mol  
11
21st Energy Level
520.20 kJ/mol  
99+
1,007.00 kJ/mol  
33
22nd Energy Level
520.00 kJ/mol  
99+
1,007.00 kJ/mol  
8
23rd Energy Level
520.20 kJ/mol  
99+
1,007.00 kJ/mol  
36
24th Energy Level
520.20 kJ/mol  
99+
1,007.10 kJ/mol  
3
25th Energy Level
520.00 kJ/mol  
99+
1,007.10 kJ/mol  
3
26th Energy Level
520.20 kJ/mol  
99+
1,007.10 kJ/mol  
3
27th Energy Level
520.20 kJ/mol  
99+
1,007.10 kJ/mol  
2
28th Energy Level
520.20 kJ/mol  
99+
1,007.10 kJ/mol  
5
29th Energy Level
520.20 kJ/mol  
99+
1,007.10 kJ/mol  
6
30th Energy Level
520.00 kJ/mol  
99+
1,007.10 kJ/mol  
3
Electrochemical Equivalent
0.26 g/amp-hr  
99+
3.74 g/amp-hr  
10
Electron Work Function
2.90 eV  
99+
4.49 eV  
20
Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes  
Flammability, Ionization, Solubility  
Atomic
Atomic Number
3  
99+
80  
36
Electron Configuration
[He] 2s1  
[Xe] 4f14 5d10 6s2  
Crystal Structure
Body Centered Cubic (BCC)  
Rhombohedral (RHO)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
RHO-Crystal-Structure-of-Mercury.jpg#100  
Atom
  
  
Number of Protons
3  
99+
80  
36
Number of Neutrons
4  
99+
121  
23
Number of Electrons
3  
99+
80  
36
Radius of an Atom
  
  
Atomic Radius
152.00 pm  
33
151.00 pm  
34
Covalent Radius
128.00 pm  
99+
132.00 pm  
99+
Van der Waals Radius
182.00 pm  
99+
155.00 pm  
99+
Atomic Weight
6.94 amu  
99+
200.59 amu  
32
Atomic Volume
13.10 cm3/mol  
99+
14.82 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
No Previous Element  
Gold
  
Next Element
Beryllium
  
Thallium
  
Valence Electron Potential
19.00 (-eV)  
99+
28.20 (-eV)  
99+
Lattice Constant
351.00 pm  
99+
300.50 pm  
99+
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.62  
16
0.42  
99+
Mechanical
Density
  
  
Density At Room Temperature
0.53 g/cm3  
99+
13.53 g/cm3  
25
Density When Liquid (at m.p.)
0.51 g/cm3  
99+
13.55 g/cm3  
27
Tensile Strength
60.00 MPa  
35
15.00 MPa  
99+
Viscosity
0.00  
10
0.00  
4
Vapor Pressure
  
  
Vapor Pressure at 1000 K
109.00 (Pa)  
2
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
4.20 GPa  
99+
30.00 GPa  
27
Bulk Modulus
11.00 GPa  
99+
25.00 GPa  
99+
Young's Modulus
4.90 GPa  
99+
45.00 GPa  
99+
Poisson Ratio
0.36  
8
0.44  
3
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
0.53  
99+
13.53  
27
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
11
0.00 H/m  
10
Susceptibility
0.00  
16
0.00  
20
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
92.80 nΩ·m  
33
961.00 nΩ·m  
1
Electrical Conductivity
0.11 106/cm Ω  
22
0.01 106/cm Ω  
99+
Electron Affinity
59.60 kJ/mol  
20
0.00 kJ/mol  
99+
Thermal
Specific Heat
3.60 J/(kg K)  
1
0.14 J/(kg K)  
39
Molar Heat Capacity
24.86 J/mol·K  
99+
27.98 J/mol·K  
16
Thermal Conductivity
84.80 W/m·K  
20
8.30 W/m·K  
99+
Critical Temperature
3,223.00 K  
5
1,750.00 K  
33
Thermal Expansion
46.00 µm/(m·K)  
7
60.40 µm/(m·K)  
5
Enthalpy
  
  
Enthalpy of Vaporization
134.70 kJ/mol  
99+
56.90 kJ/mol  
99+
Enthalpy of Fusion
3.00 kJ/mol  
99+
2.29 kJ/mol  
99+
Enthalpy of Atomization
160.70 kJ/mol  
99+
61.50 kJ/mol  
99+
Standard Molar Entropy
29.10 J/mol.K  
99+
75.80 J/mol.K  
6
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