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Gallium vs Zinc


Zinc vs Gallium


Periodic Table

Symbol
Ga   
Zn   

Group Number
13   
5
12   
6

Period Number
4   
4   

Block
p block   
d block   

Element Family
Post-​Transition   
Transition Metal   

CAS Number
7440553   
32
7440666   
24

Space Group Name
Cmca   
P63/mmc   

Space Group Number
64.00   
9
194.00   
5

Facts

Interesting Facts
  • A gram of Gallium metal can be bought for only three dollars.
  • Gallium metal found in ores of following things Coal, Bauxite, Diaspore, Sphalerite, Germanite and Zinc.
  
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.
  

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

History
  
  

Who Discovered
Lecoq de Boisbaudran   
Indian metallurgists   

Discovery
In 1875   
Before 1000 BCE   

Abundance
  
  

Abundance In Universe
1 * 10-6 %   
16
3 * 10-5 %   
11

Abundance In Sun
~0.000004 %   
16
~0.0002 %   
10

Abundance In Meteorites
0.00 %   
16
0.02 %   
12

Abundance In Earth's Crust
0.00 %   
24
0.01 %   
16

Abundance In Oceans
0.00 %   
22
0.00 %   
10

Abundance In Humans
Not Available   
0.00 %   
6

Uses

Uses & Benefits
  • Gallium arsenide is a very important component of many semiconductors and led manufacturing.
  • Gallium nitride is also know as a semiconductor and it is used in Blu-ray technology, mobile smartphones and LED.
  
  • It is mainly used for Galvanizing other metals.
  • It is also used for manufacturing die-casting and it is very essential for automobile industry.
  

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

Medical Uses
Surgical Instruments Manufacturing   
Pharmaceutical Industry   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Non Toxic   
Highly Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.08 Blood/mg dm-3   
13
7.00 Blood/mg dm-3   
6

In Bone
Not Available   
170.00 p.p.m.   
6

Physical Properties

Melting Point
29.78 °C   
99+
419.58 °C   
99+

Boiling Point
2,403.00 °C   
99+
907.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
1.50   
18
2.50   
14

Brinell Hardness
56.80 MPa   
99+
327.00 MPa   
32

Speed of Sound
2,740.00 m/s   
31
3,850.00 m/s   
18

Optical Properties
  
  

Refractive Index
Not Available   
1.00   
2

Reflectivity
Not Available   
80.00 %   
5

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   
Zn   

Isotopes
  
  

Known Isotopes
24   
15
25   
14

Electronegativity
  
  

Pauling Electronegativity
1.81   
15
1.65   
19

Sanderson Electronegativity
2.42   
2
2.23   
6

Allred Rochow Electronegativity
1.82   
1
1.66   
7

Mulliken-Jaffe Electronegativity
2.01   
5
1.65   
11

Allen Electronegativity
1.76   
14
1.59   
22

Electropositivity
  
  

Pauling Electropositivity
2.19   
39
2.35   
35

Ionization Energies
  
  

1st Energy Level
578.80 kJ/mol   
99+
906.40 kJ/mol   
6

2nd Energy Level
1,979.30 kJ/mol   
13
1,733.30 kJ/mol   
27

3rd Energy Level
2,963.00 kJ/mol   
28
3,833.00 kJ/mol   
12

4th Energy Level
6,180.00 kJ/mol   
8
5,731.00 kJ/mol   
11

5th Energy Level
Not Available   
7,970.00 kJ/mol   
9

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

7th Energy level
Not Available   
12,900.00 kJ/mol   
9

8th Energy Level
Not Available   
16,800.00 kJ/mol   
6

9th Energy Level
Not Available   
19,600.00 kJ/mol   
8

10th Energy Level
Not Available   
23,000.00 kJ/mol   
10

11th Energy Level
Not Available   
26,400.00 kJ/mol   
11

12th Energy Level
Not Available   
29,990.00 kJ/mol   
11

13th Energy Level
Not Available   
40,490.00 kJ/mol   
5

14th Energy Level
Not Available   
43,800.00 kJ/mol   
6

15th Energy Level
Not Available   
47,300.00 kJ/mol   
8

16th Energy Level
Not Available   
52,300.00 kJ/mol   
9

17th Energy Level
Not Available   
55,900.00 kJ/mol   
10

18th Energy Level
Not Available   
59,700.00 kJ/mol   
11

19th Energy Level
Not Available   
67,300.00 kJ/mol   
10

20th Energy Level
Not Available   
171,200.00 kJ/mol   
1

21st Energy Level
Not Available   
179,100.00 kJ/mol   
1

Electrochemical Equivalent
0.87 g/amp-hr   
99+
1.22 g/amp-hr   
99+

Electron Work Function
4.20 eV   
23
4.33 eV   
17

Other Chemical Properties
Ionization, Radioactive Isotopes   
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes   

Atomic Properties

Atomic Number
31   
99+
30   
99+

Electron Configuration
[Ar] 3d10 4s2 4p1   
[Ar] 3d10 4s2   

Crystal Structure
Orthorhombic (ORTH)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
ORTH-Crystal-Structure-of-Gallium.jpg#100   
HCP-Crystal-Structure-of-Zinc.jpg#100   

Atom
  
  

Number of Protons
31   
99+
30   
99+

Number of Neutrons
39   
99+
35   
99+

Number of Electrons
31   
99+
30   
99+

Radius of an Atom
  
  

Atomic Radius
135.00 pm   
99+
134.00 pm   
99+

Covalent Radius
122.00 pm   
99+
122.00 pm   
99+

Van der Waals Radius
187.00 pm   
32
139.00 pm   
99+

Atomic Weight
69.72 amu   
99+
65.38 amu   
99+

Atomic Volume
11.80 cm3/mol   
99+
9.20 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Zinc
  
Copper
  

Next Element
Rubidium
  
Gallium
  

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

Lattice Constant
451.97 pm   
18
266.49 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
5.91 g/cm3   
99+
7.14 g/cm3   
99+

Density When Liquid (at m.p.)
6.10 g/cm3   
99+
6.57 g/cm3   
37

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

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

Elasticity properties
  
  

Shear Modulus
Not Available   
43.00 GPa   
18

Bulk Modulus
Not Available   
70.00 GPa   
19

Young's Modulus
9.80 GPa   
99+
108.00 GPa   
19

Poisson Ratio
0.47   
1
0.25   
24

Other Mechanical Properties
NA   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
5.91   
99+
6.90   
99+

Magnetic Ordering
Diamagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Semiconductor   
Conductor   

Resistivity
270.00 nΩ·m   
15
59.00 nΩ·m   
40

Electrical Conductivity
0.07 106/cm Ω   
29
0.17 106/cm Ω   
12

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

Thermal Properties

Specific Heat
0.37 J/(kg K)   
16
0.39 J/(kg K)   
14

Molar Heat Capacity
25.86 J/mol·K   
35
25.47 J/mol·K   
39

Thermal Conductivity
40.60 W/m·K   
34
116.00 W/m·K   
14

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
18.00 µm/(m·K)   
24
30.20 µm/(m·K)   
11

Enthalpy
  
  

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

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

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

Standard Molar Entropy
40.80 J/mol.K   
38
41.60 J/mol.K   
36

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