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Mercury vs Nickel


Nickel vs Mercury


Periodic Table

Symbol
Hg   
Ni   

Group Number
12   
6
10   
8

Period Number
6   
4   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
7439976   
99+
7440020   
99+

Space Group Name
R_ 3m   
Fm_ 3m   

Space Group Number
166.00   
6
225.00   
2

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.
  
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • After iron, Zinc metal the second most abundant element in the earth crust.
  

Sources
Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Ancient Chinese and Indians   
Axel Fredrik Cronstedt   

Discovery
Before 2000 BCE   
In 1751   

Abundance
  
  

Abundance In Universe
Not Available   
6 * 10-3 %   
4

Abundance In Sun
~-9999 %   
~0.008 %   
3

Abundance In Meteorites
Not Available   
1.30 %   
3

Abundance In Earth's Crust
0.05 %   
9
0.01 %   
15

Abundance In Oceans
Not Available   
0.00 %   
13

Abundance In Humans
Not Available   
0.00 %   
14

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.
  
  • It has corrosion resistance and hence it is used to plate other metals.
  • Its alloys are very useful; Nichrome alloy is used in the hot coil of toasters and electric oven.
  

Industrial Uses
Electrical Industry, Electronic Industry   
Automobile Industry, Electrical Industry, Electronic Industry   

Medical Uses
Dentistry   
NA   

Other Uses
Alloys, Mirror Manufacturing, Pharmaceutical Industry   
Alloys   

Biological Properties
  
  

Toxicity
Highly Toxic   
Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.01 Blood/mg dm-3   
23
0.05 Blood/mg dm-3   
17

In Bone
0.45 p.p.m.   
19
0.70 p.p.m.   
18

Physical Properties

Melting Point
Not Available   
1,453.00 °C   
31

Boiling Point
356.58 °C   
99+
2,732.00 °C   
38

Appearance
  
  

Physical State
Liquid   
Solid   

Color
Silver   
Silver   

Luster
NA   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
4.00   
10

Brinell Hardness
Not Available   
667.00 MPa   
18

Vickers Hardness
Not Available   
638.00 MPa   
16

Speed of Sound
1,451.40 m/s   
99+
4,900.00 m/s   
12

Optical Properties
  
  

Refractive Index
1.00   
3
Not Available   

Reflectivity
73.00 %   
8
72.00 %   
9

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
Hg   
Ni   

Isotopes
  
  

Known Isotopes
34   
5
25   
14

Electronegativity
  
  

Pauling Electronegativity
2.00   
7
1.91   
10

Sanderson Electronegativity
2.20   
7
1.94   
10

Allred Rochow Electronegativity
1.44   
17
1.75   
3

Mulliken-Jaffe Electronegativity
1.81   
9
Not Available   

Allen Electronegativity
1.44   
30
1.88   
6

Electropositivity
  
  

Pauling Electropositivity
2.00   
99+
2.09   
99+

Ionization Energies
  
  

1st Energy Level
1,007.10 kJ/mol   
4
737.10 kJ/mol   
25

2nd Energy Level
1,810.00 kJ/mol   
20
1,753.00 kJ/mol   
25

3rd Energy Level
3,300.00 kJ/mol   
20
3,395.00 kJ/mol   
17

4th Energy Level
Not Available   
5,300.00 kJ/mol   
15

5th Energy Level
Not Available   
7,339.00 kJ/mol   
15

6th Energy Level
Not Available   
10,400.00 kJ/mol   
9

7th Energy level
Not Available   
12,800.00 kJ/mol   
10

8th Energy Level
Not Available   
15,600.00 kJ/mol   
10

9th Energy Level
Not Available   
18,600.00 kJ/mol   
10

10th Energy Level
Not Available   
21,670.00 kJ/mol   
14

11th Energy Level
Not Available   
30,970.00 kJ/mol   
7

12th Energy Level
Not Available   
34,000.00 kJ/mol   
7

13th Energy Level
Not Available   
37,100.00 kJ/mol   
7

14th Energy Level
Not Available   
41,500.00 kJ/mol   
8

15th Energy Level
Not Available   
44,800.00 kJ/mol   
10

16th Energy Level
Not Available   
48,100.00 kJ/mol   
12

17th Energy Level
Not Available   
55,101.00 kJ/mol   
11

18th Energy Level
Not Available   
58,570.00 kJ/mol   
12

19th Energy Level
Not Available   
148,700.00 kJ/mol   
1

20th Energy Level
Not Available   
159,000.00 kJ/mol   
3

21st Energy Level
Not Available   
169,400.00 kJ/mol   
3

22nd Energy Level
Not Available   
182,700.00 kJ/mol   
2

23rd Energy Level
Not Available   
194,000.00 kJ/mol   
2

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

Electron Work Function
4.49 eV   
15
5.15 eV   
2

Other Chemical Properties
Flammability, Ionization, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes   

Atomic Properties

Atomic Number
80   
36
28   
99+

Electron Configuration
[Xe] 4f14 5d10 6s2   
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1   

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

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

Atom
  
  

Number of Protons
80   
36
28   
99+

Number of Neutrons
121   
22
31   
99+

Number of Electrons
80   
36
28   
99+

Radius of an Atom
  
  

Atomic Radius
151.00 pm   
32
124.00 pm   
99+

Covalent Radius
132.00 pm   
99+
124.00 pm   
99+

Van der Waals Radius
155.00 pm   
99+
163.00 pm   
40

Atomic Weight
200.59 amu   
32
58.69 amu   
99+

Atomic Volume
14.82 cm3/mol   
35
6.59 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Gold
  
Cobalt
  

Next Element
Thallium
  
Copper
  

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

Lattice Constant
300.50 pm   
99+
352.40 pm   
99+

Lattice Angles
NA   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

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

Density When Liquid (at m.p.)
Not Available   
7.81 g/cm3   
29

Tensile Strength
Not Available   
345.00 MPa   
11

Viscosity
0.00   
1
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
31

Vapor Pressure at 2000 K
Not Available   
19.50 (Pa)   
6

Elasticity properties
  
  

Shear Modulus
Not Available   
76.00 GPa   
12

Bulk Modulus
Not Available   
180.00 GPa   
9

Young's Modulus
Not Available   
200.00 GPa   
11

Poisson Ratio
Not Available   
0.31   
13

Other Mechanical Properties
NA   
Ductile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
13.53   
16
8.90   
33

Magnetic Ordering
Diamagnetic   
Ferromagnetic   

Permeability
Not Available   
0.00 H/m   
2

Susceptibility
Not Available   
600.00   
2

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
961.00 nΩ·m   
1
69.30 nΩ·m   
39

Electrical Conductivity
0.01 106/cm Ω   
99+
0.14 106/cm Ω   
13

Electron Affinity
0.00 kJ/mol   
40
112.00 kJ/mol   
6

Thermal Properties

Specific Heat
0.14 J/(kg K)   
38
0.44 J/(kg K)   
13

Molar Heat Capacity
27.98 J/mol·K   
13
26.07 J/mol·K   
31

Thermal Conductivity
8.30 W/m·K   
99+
90.90 W/m·K   
18

Critical Temperature
1,750.00 K   
6
Not Available   

Thermal Expansion
60.40 µm/(m·K)   
5
13.40 µm/(m·K)   
28

Enthalpy
  
  

Enthalpy of Vaporization
56.90 kJ/mol   
99+
371.80 kJ/mol   
20

Enthalpy of Fusion
2.29 kJ/mol   
99+
17.57 kJ/mol   
14

Enthalpy of Atomization
61.50 kJ/mol   
99+
422.60 kJ/mol   
17

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

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