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Silver vs Bismuth


Bismuth vs Silver


Periodic Table

Symbol
Ag   
Bi   

Group Number
11   
7
15   
3

Period Number
5   
6   

Block
d block   
p block   

Element Family
Transition Metal   
Post-​Transition   

CAS Number
7440224   
99+
7440699   
22

Space Group Name
Fm_ 3m   
C12/m1   

Space Group Number
225.00   
2
12.00   
12

Facts

Interesting Facts
  • 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.
  
  • 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.
  

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

History
  
  

Who Discovered
Unknown   
Claude François Geoffroy   

Discovery
Before 5000 BC   
In 1753   

Abundance
  
  

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

Abundance In Sun
~0.0000001 %   
26
~0.000006 %   
14

Abundance In Meteorites
0.00 %   
38
0.00 %   
99+

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

Abundance In Oceans
0.00 %   
19
0.00 %   
24

Uses

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

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

Medical Uses
Dentistry, Pharmaceutical Industry   
Pharmaceutical Industry   

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

Biological Properties
  
  

Toxicity
Non Toxic   
Low Toxic   

Present in Human Body
Yes   
Yes   

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

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

Physical Properties

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

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

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silver   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
2.50   
14
2.25   
15

Brinell Hardness
251.00 MPa   
37
70.00 MPa   
99+

Vickers Hardness
229.00 MPa   
30
Not Available   

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

Optical Properties
  
  

Reflectivity
97.00 %   
1
Not Available   

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
Ag   
Bi   

Isotopes
  
  

Known Isotopes
36   
3
33   
6

Electronegativity
  
  

Pauling Electronegativity
1.93   
9
2.02   
6

Sanderson Electronegativity
1.83   
11
2.34   
3

Allred Rochow Electronegativity
1.42   
18
1.67   
6

Mulliken-Jaffe Electronegativity
1.47   
15
2.15   
4

Allen Electronegativity
1.87   
7
2.01   
4

Electropositivity
  
  

Pauling Electropositivity
2.07   
99+
1.98   
99+

Ionization Energies
  
  

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

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

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

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

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

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

Electrochemical Equivalent
4.02 g/amp-hr   
7
2.60 g/amp-hr   
19

Electron Work Function
4.26 eV   
20
4.22 eV   
22

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

Atomic Properties

Atomic Number
47   
99+
83   
33

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

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

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

Atom
  
  

Number of Protons
47   
99+
83   
33

Number of Neutrons
61   
99+
126   
18

Number of Electrons
47   
99+
83   
33

Radius of an Atom
  
  

Atomic Radius
144.00 pm   
36
156.00 pm   
29

Covalent Radius
145.00 pm   
39
148.00 pm   
36

Van der Waals Radius
172.00 pm   
38
207.00 pm   
26

Atomic Weight
107.87 amu   
99+
208.98 amu   
29

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

Adjacent Atomic Numbers
  
  

Previous Element
Palladium
  
Lead
  

Next Element
Cadmium
  
Polonium
  

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

Lattice Constant
408.53 pm   
20
667.40 pm   
2

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
10.49 g/cm3   
35
9.78 g/cm3   
39

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

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

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

Elasticity properties
  
  

Shear Modulus
30.00 GPa   
23
12.00 GPa   
99+

Bulk Modulus
100.00 GPa   
16
31.00 GPa   
38

Young's Modulus
83.00 GPa   
23
32.00 GPa   
99+

Poisson Ratio
0.37   
7
0.33   
11

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
10.50   
26
9.79   
30

Magnetic Ordering
Diamagnetic   
Diamagnetic   

Permeability
Not Available   
0.00 H/m   
6

Susceptibility
0.00   
5
0.00   
6

Electrical Properties
  
  

Electrical Property
Conductor   
Semiconductor   

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

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

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

Thermal Properties

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

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

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

Critical Temperature
Not Available   
Not Available   

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

Enthalpy
  
  

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

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

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

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

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