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Bismuth Cesium Comparison


Cesium Bismuth comparison


Periodic Table

Symbol
Bi   
Cs   

Group Number
15   
3
1   
17

Period Number
6   
6   

Block
p block   
s block   

Element Family
Post-​Transition   
Alkali   

CAS Number
7440699   
22
7440462   
40

Space Group Name
C12/m1   
Im_ 3m   

Space Group Number
12.00   
12
229.00   
1

Facts

Interesting Facts
  • Bismuth metal is soluble and reacts with concentrated nitric acid.
  • It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
  
Not Available   

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

History
  
  

Who Discovered
Claude François Geoffroy   
Robert Bunsen and Gustav Kirchhoff   

Discovery
In 1753   
In 1860   

Abundance
  
  

Abundance In Universe
7 * 10-8 %   
25
8 * 10-8 %   
24

Abundance In Sun
~0.000006 %   
14
~0.0000008 %   
20

Abundance In Meteorites
0.00 %   
99+
0.00 %   
38

Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
35

Abundance In Oceans
0.00 %   
24
0.00 %   
17

Abundance In Humans
Not Available   
0.00 %   
17

Uses

Uses & Benefits
  • Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
  
  • 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
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   

Medical Uses
Pharmaceutical Industry   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Low Toxic   
Mildly Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.02 Blood/mg dm-3   
20
0.00 Blood/mg dm-3   
28

In Bone
0.20 p.p.m.   
22
0.05 p.p.m.   
26

Physical Properties

Melting Point
271.30 °C   
99+
28.50 °C   
99+

Boiling Point
1,560.00 °C   
99+
678.40 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery Gold   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
2.25   
15
0.20   
25

Brinell Hardness
70.00 MPa   
99+
0.14 MPa   
99+

Speed of Sound
1,790.00 m/s   
99+
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
Bi   
Cs   

Isotopes
  
  

Known Isotopes
33   
6
36   
3

Electronegativity
  
  

Pauling Electronegativity
2.02   
6
0.79   
99+

Sanderson Electronegativity
2.34   
3
0.22   
33

Allred Rochow Electronegativity
1.67   
6
0.86   
99+

Mulliken-Jaffe Electronegativity
2.15   
4
0.62   
26

Allen Electronegativity
2.01   
4
0.66   
99+

Electropositivity
  
  

Pauling Electropositivity
1.98   
99+
3.21   
2

Ionization Energies
  
  

1st Energy Level
703.00 kJ/mol   
35
375.70 kJ/mol   
99+

2nd Energy Level
1,610.00 kJ/mol   
33
2,234.30 kJ/mol   
8

3rd Energy Level
2,466.00 kJ/mol   
99+
3,400.00 kJ/mol   
16

4th Energy Level
4,370.00 kJ/mol   
28
Not Available   

5th Energy Level
5,400.00 kJ/mol   
30
Not Available   

6th Energy Level
8,520.00 kJ/mol   
19
Not Available   

Electrochemical Equivalent
2.60 g/amp-hr   
19
4.96 g/amp-hr   
3

Electron Work Function
4.22 eV   
22
2.14 eV   
99+

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

Atomic Properties

Atomic Number
83   
33
55   
99+

Electron Configuration
[Xe] 4f14 5d10 6s2 6p3   
[Xe] 6s1   

Crystal Structure
Rhombohedral (RHO)   
Body Centered Cubic (BCC)   

Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
83   
33
55   
99+

Number of Neutrons
126   
18
78   
99+

Number of Electrons
83   
33
55   
99+

Radius of an Atom
  
  

Atomic Radius
156.00 pm   
29
265.00 pm   
1

Covalent Radius
148.00 pm   
36
244.00 pm   
2

Van der Waals Radius
207.00 pm   
26
343.00 pm   
2

Atomic Weight
208.98 amu   
29
132.91 amu   
99+

Atomic Volume
21.30 cm3/mol   
14
71.07 cm3/mol   
1

Adjacent Atomic Numbers
  
  

Previous Element
Lead
  
Tin
  

Next Element
Polonium
  
Barium
  

Valence Electron Potential
41.90 (-eV)   
99+
8.62 (-eV)   
99+

Lattice Constant
667.40 pm   
2
614.10 pm   
5

Lattice Angles
NA   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
9.78 g/cm3   
39
1.93 g/cm3   
99+

Density When Liquid (at m.p.)
10.05 g/cm3   
18
1.84 g/cm3   
99+

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Shear Modulus
12.00 GPa   
99+
Not Available   

Bulk Modulus
31.00 GPa   
38
1.60 GPa   
99+

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

Poisson Ratio
0.33   
11
Not Available   

Other Mechanical Properties
NA   
Ductile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.79   
30
1.87   
99+

Magnetic Ordering
Diamagnetic   
Paramagnetic   

Permeability
0.00 H/m   
6
Not Available   

Susceptibility
0.00   
6
Not Available   

Electrical Properties
  
  

Electrical Property
Semiconductor   
Semiconductor   

Resistivity
1.29 nΩ·m   
99+
205.00 nΩ·m   
17

Electrical Conductivity
0.01 106/cm Ω   
99+
0.05 106/cm Ω   
35

Electron Affinity
91.20 kJ/mol   
11
45.50 kJ/mol   
25

Thermal Properties

Specific Heat
0.12 J/(kg K)   
40
0.24 J/(kg K)   
23

Molar Heat Capacity
25.52 J/mol·K   
37
32.21 J/mol·K   
4

Thermal Conductivity
7.97 W/m·K   
99+
35.90 W/m·K   
36

Critical Temperature
Not Available   
1,938.00 K   
5

Thermal Expansion
13.40 µm/(m·K)   
28
97.00 µm/(m·K)   
1

Enthalpy
  
  

Enthalpy of Vaporization
151.00 kJ/mol   
99+
65.90 kJ/mol   
99+

Enthalpy of Fusion
10.90 kJ/mol   
33
2.10 kJ/mol   
99+

Enthalpy of Atomization
207.10 kJ/mol   
99+
78.20 kJ/mol   
99+

Standard Molar Entropy
56.70 J/mol.K   
24
85.20 J/mol.K   
3

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