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Bismuth Silver Comparison


Silver Bismuth comparison


Periodic Table

Symbol
Bi   
Ag   

Group Number
15   
3
11   
7

Period Number
6   
5   

Block
p block   
d block   

Element Family
Post-​Transition   
Transition Metal   

CAS Number
7440699   
22
7440224   
99+

Space Group Name
C12/m1   
Fm_ 3m   

Space Group Number
12.00   
12
225.00   
2

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.
  
  • It is the most reflective element.
  • Silver is the second most ductile metal after Gold.
  • It is also used in Dentistry as a dental alloys for clips and crowning.
  

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

History
  
  

Who Discovered
Claude François Geoffroy   
Unknown   

Discovery
In 1753   
Before 5000 BC   

Abundance
  
  

Abundance In Universe
7 * 10-8 %   
25
6 * 10-8 %   
26

Abundance In Sun
~0.000006 %   
14
~0.0000001 %   
26

Abundance In Meteorites
0.00 %   
99+
0.00 %   
38

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

Abundance In Oceans
0.00 %   
24
0.00 %   
19

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.
  
  • Silver is mainly used for Jewelry and show piece.
  • It is used for manufacturing high quality mirrors due to its reflectivity property.
  

Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Chemical Industry, Clothing Industry, Electrical Industry   

Medical Uses
Pharmaceutical Industry   
Dentistry, Pharmaceutical Industry   

Other Uses
Alloys   
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   

Biological Properties
  
  

Toxicity
Low Toxic   
Non Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.02 Blood/mg dm-3   
20
0.00 Blood/mg dm-3   
29

In Bone
0.20 p.p.m.   
22
0.44 p.p.m.   
20

Physical Properties

Melting Point
271.30 °C   
99+
961.93 °C   
99+

Boiling Point
1,560.00 °C   
99+
2,212.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery White   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
2.25   
15
2.50   
14

Brinell Hardness
70.00 MPa   
99+
251.00 MPa   
37

Vickers Hardness
Not Available   
229.00 MPa   
30

Speed of Sound
1,790.00 m/s   
99+
2,680.00 m/s   
34

Optical Properties
  
  

Reflectivity
Not Available   
97.00 %   
1

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   
Ag   

Isotopes
  
  

Known Isotopes
33   
6
36   
3

Electronegativity
  
  

Pauling Electronegativity
2.02   
6
1.93   
9

Sanderson Electronegativity
2.34   
3
1.83   
11

Allred Rochow Electronegativity
1.67   
6
1.42   
18

Mulliken-Jaffe Electronegativity
2.15   
4
1.47   
15

Allen Electronegativity
2.01   
4
1.87   
7

Electropositivity
  
  

Pauling Electropositivity
1.98   
99+
2.07   
99+

Ionization Energies
  
  

1st Energy Level
703.00 kJ/mol   
35
731.00 kJ/mol   
27

2nd Energy Level
1,610.00 kJ/mol   
33
2,070.00 kJ/mol   
11

3rd Energy Level
2,466.00 kJ/mol   
99+
3,361.00 kJ/mol   
19

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
4.02 g/amp-hr   
7

Electron Work Function
4.22 eV   
22
4.26 eV   
20

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

Atomic Properties

Atomic Number
83   
33
47   
99+

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

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

Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100   
FCC-Crystal-Structure-of-Silver.jpg#100   

Atom
  
  

Number of Protons
83   
33
47   
99+

Number of Neutrons
126   
18
61   
99+

Number of Electrons
83   
33
47   
99+

Radius of an Atom
  
  

Atomic Radius
156.00 pm   
29
144.00 pm   
36

Covalent Radius
148.00 pm   
36
145.00 pm   
39

Van der Waals Radius
207.00 pm   
26
172.00 pm   
38

Atomic Weight
208.98 amu   
29
107.87 amu   
99+

Atomic Volume
21.30 cm3/mol   
14
10.30 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Lead
  
Palladium
  

Next Element
Polonium
  
Cadmium
  

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

Lattice Constant
667.40 pm   
2
408.53 pm   
20

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
10.49 g/cm3   
35

Density When Liquid (at m.p.)
10.05 g/cm3   
18
9.32 g/cm3   
21

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
14

Elasticity properties
  
  

Shear Modulus
12.00 GPa   
99+
30.00 GPa   
23

Bulk Modulus
31.00 GPa   
38
100.00 GPa   
16

Young's Modulus
32.00 GPa   
99+
83.00 GPa   
23

Poisson Ratio
0.33   
11
0.37   
7

Other Mechanical Properties
NA   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.79   
30
10.50   
26

Magnetic Ordering
Diamagnetic   
Diamagnetic   

Permeability
0.00 H/m   
6
Not Available   

Susceptibility
0.00   
6
0.00   
5

Electrical Properties
  
  

Electrical Property
Semiconductor   
Conductor   

Resistivity
1.29 nΩ·m   
99+
15.87 nΩ·m   
99+

Electrical Conductivity
0.01 106/cm Ω   
99+
0.63 106/cm Ω   
1

Electron Affinity
91.20 kJ/mol   
11
125.60 kJ/mol   
5

Thermal Properties

Specific Heat
0.12 J/(kg K)   
40
0.24 J/(kg K)   
25

Molar Heat Capacity
25.52 J/mol·K   
37
25.35 J/mol·K   
99+

Thermal Conductivity
7.97 W/m·K   
99+
429.00 W/m·K   
1

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
13.40 µm/(m·K)   
28
18.90 µm/(m·K)   
23

Enthalpy
  
  

Enthalpy of Vaporization
151.00 kJ/mol   
99+
255.10 kJ/mol   
37

Enthalpy of Fusion
10.90 kJ/mol   
33
11.30 kJ/mol   
31

Enthalpy of Atomization
207.10 kJ/mol   
99+
284.50 kJ/mol   
37

Standard Molar Entropy
56.70 J/mol.K   
24
42.60 J/mol.K   
35

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