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Properties of Gallium and Mercury


Properties of Mercury & Gallium


Physical Properties

Melting Point
29.78 °C   
99+
Not Available   

Boiling Point
2,403.00 °C   
99+
356.58 °C   
99+

Hardness
  
  

Mohs Hardness
1.50   
18
Not Available   

Brinell Hardness
56.80 MPa   
99+
Not Available   

Vickers Hardness
Not Available   
Not Available   

Optical Properties
  
  

Refractive Index
Not Available   
1.00   
3

Reflectivity
Not Available   
73.00 %   
8

Speed of Sound
2,740.00 m/s   
31
1,451.40 m/s   
99+

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
Ga   
Hg   

Isotopes
  
  

Known Isotopes
24   
15
34   
5

Electronegativity
  
  

Pauling Electronegativity
1.81   
15
2.00   
7

Sanderson Electronegativity
2.42   
2
2.20   
7

Allred Rochow Electronegativity
1.82   
1
1.44   
17

Mulliken-Jaffe Electronegativity
2.01   
5
1.81   
9

Allen Electronegativity
1.76   
14
1.44   
30

Electropositivity
  
  

Pauling Electropositivity
2.19   
39
2.00   
99+

Ionization Energies
  
  

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

2nd Energy Level
1,979.30 kJ/mol   
13
1,810.00 kJ/mol   
20

3rd Energy Level
2,963.00 kJ/mol   
28
3,300.00 kJ/mol   
20

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

Electron Work Function
4.20 eV   
23
4.49 eV   
15

Other Chemical Properties
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes
  
?
Flammable metals have ability to burn or ignite, causing fire or combustion.Flammability, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility
  

Mechanical Properties

Density
  
  

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

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

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
15
Not Available   

Vapor Pressure at 2000 K
Not Available   
Not Available   

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
0.00   
1

Elasticity properties
  
  

Shear Modulus
Not Available   
Not Available   

Bulk Modulus
Not Available   
Not Available   

Young's Modulus
9.80 GPa   
99+
Not Available   

Poisson Ratio
0.47   
1
Not Available   

Other Mechanical Properties
NA   
NA   

Periodic Table

Symbol
Ga   
Hg   

Group Number
13   
5
12   
6

Period Number
4   
6   

Block
?
The p-block is on the right side of the periodic table and includes elements from the six columns beginning with column 13 and ending with column 18. Helium, though being in the top of group 18, is not included in the p-block.p block
  
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block
  

Element Family
?
All post transition metals are placed in group number 13, 14 and 15 of periodic table. In fact, they are located between Transition Metals and Metalloids. Post transition metals have very poor mechanical properties.Post-​Transition
  
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal
  

Atomic Properties

Atomic Number
31   
99+
80   
36

Atomic Weight
69.72 amu   
99+
200.59 amu   
32

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

Electron Configuration
[Ar] 3d10 4s2 4p1   
[Xe] 4f14 5d10 6s2   

Valence Electron Potential
69.70 (-eV)   
19
28.20 (-eV)   
99+

Atom
  
  

Number of Protons
31   
99+
80   
36

Number of Neutrons
39   
99+
121   
22

Number of Electrons
31   
99+
80   
36

Crystal Structure
?
Orthorhombic lattices occur due to stretching a cubic lattice along two of its orthogonal sides. It gets result in a rectangular prism with a rectangular at base. These 3 bases intersect each other at 90°.Orthorhombic (ORTH)
  
?
Rhombohedral crystal lattice structure comes under trigonal crystal structure. The Rhombohedral crystal structure is a term associated trigonal crystal structure with the rhombohedral lattice.Rhombohedral (RHO)
  

Crystal Lattice
ORTH-Crystal-Structure-of-Gallium.jpg#100   
RHO-Crystal-Structure-of-Mercury.jpg#100   

Radius of an Atom
  
  

Atomic Radius
135.00 pm   
99+
151.00 pm   
32

Covalent Radius
122.00 pm   
99+
132.00 pm   
99+

Van der Waals Radius
187.00 pm   
32
155.00 pm   
99+

Lattice Constant
451.97 pm   
18
300.50 pm   
99+

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Adjacent Atomic Numbers
  
  

Next Element
Rubidium
  
Thallium
  

Previous Element
Zinc
  
Gold
  

Magnetic Properties

Electrical Properties
  
  

Resistivity
270.00 nΩ·m   
15
961.00 nΩ·m   
1

Electrical Conductivity
0.07 106/cm Ω   
29
0.01 106/cm Ω   
99+

Electron Affinity
28.90 kJ/mol   
31
0.00 kJ/mol   
40

Electrical Property
?
Semiconductor metals have conductivity between that of a conductor and an insulator.Semiconductor
  
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
  

Magnetic Characteristics
  
  

Specific Gravity
5.91   
99+
13.53   
16

Magnetic Ordering
?
Diamagnetic metals produce a magnetic field opposite to the applied magnetic field. Thus, they are repelled by magnets and show magnetic nature.Diamagnetic
  
?
Diamagnetic metals produce a magnetic field opposite to the applied magnetic field. Thus, they are repelled by magnets and show magnetic nature.Diamagnetic
  

Permeability
Not Available   
Not Available   

Susceptibility
Not Available   
Not Available   

Thermal Properties

Specific Heat
0.37 J/(kg K)   
16
0.14 J/(kg K)   
38

Thermal Conductivity
40.60 W/m·K   
34
8.30 W/m·K   
99+

Critical Temperature
Not Available   
1,750.00 K   
6

Molar Heat Capacity
25.86 J/mol·K   
35
27.98 J/mol·K   
13

Thermal Expansion
18.00 µm/(m·K)   
24
60.40 µm/(m·K)   
5

Standard Molar Entropy
40.80 J/mol.K   
38
75.80 J/mol.K   
6

Enthalpy
  
  

Enthalpy of Vaporization
256.10 kJ/mol   
36
56.90 kJ/mol   
99+

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

Enthalpy of Atomization
276.10 kJ/mol   
39
61.50 kJ/mol   
99+

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