Home
Compare Metals


Gallium vs Cesium


Cesium vs Gallium


Periodic Table

Symbol
Ga   
Cs   

Group Number
13   
5
1   
17

Period Number
4   
6   

Block
p block   
s block   

Element Family
Post-​Transition   
Alkali   

CAS Number
7440553   
32
7440462   
40

Space Group Name
Cmca   
Im_ 3m   

Space Group Number
64.00   
9
229.00   
1

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.
  
Not Available   

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   
Robert Bunsen and Gustav Kirchhoff   

Discovery
In 1875   
In 1860   

Abundance
  
  

Abundance In Universe
1 * 10-6 %   
16
8 * 10-8 %   
24

Abundance In Sun
~0.000004 %   
16
~0.0000008 %   
20

Abundance In Meteorites
0.00 %   
16
0.00 %   
38

Abundance In Earth's Crust
0.00 %   
24
0.00 %   
35

Abundance In Oceans
0.00 %   
22
0.00 %   
17

Abundance In Humans
Not Available   
0.00 %   
17

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.
  
  • The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
  • In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
  

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

Medical Uses
Surgical Instruments Manufacturing   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Non Toxic   
Mildly Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.08 Blood/mg dm-3   
13
0.00 Blood/mg dm-3   
28

In Bone
Not Available   
0.05 p.p.m.   
26

Physical Properties

Melting Point
29.78 °C   
99+
28.50 °C   
99+

Boiling Point
2,403.00 °C   
99+
678.40 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery Gold   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
1.50   
18
0.20   
25

Brinell Hardness
56.80 MPa   
99+
0.14 MPa   
99+

Speed of Sound
2,740.00 m/s   
31
Not Available   

Optical Properties
  
  

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   
Cs   

Isotopes
  
  

Known Isotopes
24   
15
36   
3

Electronegativity
  
  

Pauling Electronegativity
1.81   
15
0.79   
99+

Sanderson Electronegativity
2.42   
2
0.22   
33

Allred Rochow Electronegativity
1.82   
1
0.86   
99+

Mulliken-Jaffe Electronegativity
2.01   
5
0.62   
26

Allen Electronegativity
1.76   
14
0.66   
99+

Electropositivity
  
  

Pauling Electropositivity
2.19   
39
3.21   
2

Ionization Energies
  
  

1st Energy Level
578.80 kJ/mol   
99+
375.70 kJ/mol   
99+

2nd Energy Level
1,979.30 kJ/mol   
13
2,234.30 kJ/mol   
8

3rd Energy Level
2,963.00 kJ/mol   
28
3,400.00 kJ/mol   
16

4th Energy Level
6,180.00 kJ/mol   
8
Not Available   

Electrochemical Equivalent
0.87 g/amp-hr   
99+
4.96 g/amp-hr   
3

Electron Work Function
4.20 eV   
23
2.14 eV   
99+

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

Atomic Properties

Atomic Number
31   
99+
55   
99+

Electron Configuration
[Ar] 3d10 4s2 4p1   
[Xe] 6s1   

Crystal Structure
Orthorhombic (ORTH)   
Body Centered Cubic (BCC)   

Crystal Lattice
ORTH-Crystal-Structure-of-Gallium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
31   
99+
55   
99+

Number of Neutrons
39   
99+
78   
99+

Number of Electrons
31   
99+
55   
99+

Radius of an Atom
  
  

Atomic Radius
135.00 pm   
99+
265.00 pm   
1

Covalent Radius
122.00 pm   
99+
244.00 pm   
2

Van der Waals Radius
187.00 pm   
32
343.00 pm   
2

Atomic Weight
69.72 amu   
99+
132.91 amu   
99+

Atomic Volume
11.80 cm3/mol   
99+
71.07 cm3/mol   
1

Adjacent Atomic Numbers
  
  

Previous Element
Zinc
  
Tin
  

Next Element
Rubidium
  
Barium
  

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

Lattice Constant
451.97 pm   
18
614.10 pm   
5

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

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

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

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

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
  
  

Bulk Modulus
Not Available   
1.60 GPa   
99+

Young's Modulus
9.80 GPa   
99+
1.70 GPa   
99+

Poisson Ratio
0.47   
1
Not Available   

Other Mechanical Properties
NA   
Ductile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
5.91   
99+
1.87   
99+

Magnetic Ordering
Diamagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Semiconductor   
Semiconductor   

Resistivity
270.00 nΩ·m   
15
205.00 nΩ·m   
17

Electrical Conductivity
0.07 106/cm Ω   
29
0.05 106/cm Ω   
35

Electron Affinity
28.90 kJ/mol   
31
45.50 kJ/mol   
25

Thermal Properties

Specific Heat
0.37 J/(kg K)   
16
0.24 J/(kg K)   
23

Molar Heat Capacity
25.86 J/mol·K   
35
32.21 J/mol·K   
4

Thermal Conductivity
40.60 W/m·K   
34
35.90 W/m·K   
36

Critical Temperature
Not Available   
1,938.00 K   
5

Thermal Expansion
18.00 µm/(m·K)   
24
97.00 µm/(m·K)   
1

Enthalpy
  
  

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

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

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

Standard Molar Entropy
40.80 J/mol.K   
38
85.20 J/mol.K   
3

Periodic Table >>
<< All

Compare Post Transition Metals

Post-Transition Metals

Post-Transition Metals

» More Post-Transition Metals

Compare Post Transition Metals

» More Compare Post Transition Metals