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Sodium Mercury Comparison


Mercury Sodium comparison


Periodic Table

Symbol
Na   
Hg   

Group Number
1   
17
12   
6

Period Number
3   
6   

Block
s block   
d block   

Element Family
Alkali   
Transition Metal   

CAS Number
7440235   
99+
7439976   
99+

Space Group Name
Im_ 3m   
R_ 3m   

Space Group Number
229.00   
1
166.00   
6

Facts

Interesting Facts
  • At room temperature Sodium metal is very soft as it can be chopped down into pieces with butter knife.
  • The most common compound of Sodium is NaCl (Salt).
  
  • 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
By Electrolysis Process, Mining   
Mining, Ores of Minerals   

History
  
  

Who Discovered
Humphry Davy   
Ancient Chinese and Indians   

Discovery
In 1807   
Before 2000 BCE   

Abundance
  
  

Abundance In Universe
2 * 10-3 %   
6
Not Available   

Abundance In Sun
~0.004 %   
6
~-9999 %   

Abundance In Meteorites
0.55 %   
6
Not Available   

Abundance In Earth's Crust
2.30 %   
5
0.05 %   
9

Abundance In Oceans
1.10 %   
1
Not Available   

Abundance In Humans
0.14 %   
3
Not Available   

Uses

Uses & Benefits
  • In some nuclear reactors sodium is used as a heat exchanger.
  • Compound of Sodium metals called Salt (Sodium chloride) is used in Food.
  
  • 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
Electrical Industry, Electronic Industry   
Electrical Industry, Electronic Industry   

Medical Uses
Pharmaceutical Industry   
Dentistry   

Other Uses
Alloys   
Alloys, Mirror Manufacturing, Pharmaceutical Industry   

Biological Properties
  
  

Toxicity
Toxic   
Highly Toxic   

Present in Human Body
Yes   
Yes   

In Blood
1,970.00 Blood/mg dm-3   
1
0.01 Blood/mg dm-3   
23

In Bone
10,000.00 p.p.m.   
2
0.45 p.p.m.   
19

Physical Properties

Melting Point
97.72 °C   
99+
Not Available   

Boiling Point
883.00 °C   
99+
356.58 °C   
99+

Appearance
  
  

Physical State
Solid   
Liquid   

Color
Silvery White   
Silver   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
0.50   
22
Not Available   

Brinell Hardness
0.69 MPa   
99+
Not Available   

Speed of Sound
3,200.00 m/s   
24
1,451.40 m/s   
99+

Optical Properties
  
  

Refractive Index
Not Available   
1.00   
3

Reflectivity
Not Available   
73.00 %   
8

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Na   
Hg   

Isotopes
  
  

Known Isotopes
17   
22
34   
5

Electronegativity
  
  

Pauling Electronegativity
0.93   
99+
2.00   
7

Sanderson Electronegativity
0.56   
30
2.20   
7

Allred Rochow Electronegativity
1.01   
35
1.44   
17

Mulliken-Jaffe Electronegativity
0.91   
21
1.81   
9

Allen Electronegativity
0.87   
99+
1.44   
30

Electropositivity
  
  

Pauling Electropositivity
3.07   
6
2.00   
99+

Ionization Energies
  
  

1st Energy Level
495.80 kJ/mol   
99+
1,007.10 kJ/mol   
4

2nd Energy Level
4,562.00 kJ/mol   
4
1,810.00 kJ/mol   
20

3rd Energy Level
6,910.30 kJ/mol   
6
3,300.00 kJ/mol   
20

4th Energy Level
9,543.00 kJ/mol   
5
Not Available   

5th Energy Level
13,354.00 kJ/mol   
4
Not Available   

6th Energy Level
16,613.00 kJ/mol   
4
Not Available   

7th Energy level
20,117.00 kJ/mol   
4
Not Available   

8th Energy Level
25,496.00 kJ/mol   
4
Not Available   

9th Energy Level
28,932.00 kJ/mol   
4
Not Available   

10th Energy Level
141,362.00 kJ/mol   
2
Not Available   

11th Energy Level
159,076.00 kJ/mol   
2
Not Available   

Electrochemical Equivalent
0.86 g/amp-hr   
99+
3.74 g/amp-hr   
10

Electron Work Function
2.75 eV   
40
4.49 eV   
15

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

Atomic Properties

Atomic Number
11   
99+
80   
36

Electron Configuration
[Ne] 3s1   
[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
11   
99+
80   
36

Number of Neutrons
12   
99+
121   
22

Number of Electrons
11   
99+
80   
36

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
151.00 pm   
32

Covalent Radius
166.00 pm   
27
132.00 pm   
99+

Van der Waals Radius
227.00 pm   
21
155.00 pm   
99+

Atomic Weight
22.99 amu   
99+
200.59 amu   
32

Atomic Volume
23.70 cm3/mol   
10
14.82 cm3/mol   
35

Adjacent Atomic Numbers
  
  

Previous Element
Beryllium
  
Gold
  

Next Element
Magnesium
  
Thallium
  

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

Lattice Constant
429.06 pm   
19
300.50 pm   
99+

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
0.97 g/cm3   
99+
13.53 g/cm3   
24

Density When Liquid (at m.p.)
0.93 g/cm3   
99+
Not Available   

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
0.00   
1

Vapor Pressure
  
  

Elasticity properties
  
  

Shear Modulus
3.30 GPa   
99+
Not Available   

Bulk Modulus
6.30 GPa   
99+
Not Available   

Young's Modulus
10.00 GPa   
99+
Not Available   

Poisson Ratio
Not Available   
Not Available   

Other Mechanical Properties
NA   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
0.97   
99+
13.53   
16

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

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

Electrical Conductivity
0.21 106/cm Ω   
9
0.01 106/cm Ω   
99+

Electron Affinity
52.80 kJ/mol   
19
0.00 kJ/mol   
40

Thermal Properties

Specific Heat
1.23 J/(kg K)   
3
0.14 J/(kg K)   
38

Molar Heat Capacity
28.23 J/mol·K   
10
27.98 J/mol·K   
13

Thermal Conductivity
142.00 W/m·K   
11
8.30 W/m·K   
99+

Critical Temperature
2,573.00 K   
2
1,750.00 K   
6

Thermal Expansion
71.00 µm/(m·K)   
4
60.40 µm/(m·K)   
5

Enthalpy
  
  

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

Enthalpy of Fusion
2.59 kJ/mol   
99+
2.29 kJ/mol   
99+

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

Standard Molar Entropy
51.30 J/mol.K   
28
75.80 J/mol.K   
6

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