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Gold vs Bismuth


Bismuth vs Gold


Periodic Table

Symbol
Au   
Bi   

Group Number
11   
7
15   
3

Period Number
6   
6   

Block
d block   
p block   

Element Family
Transition Metal   
Post-​Transition   

CAS Number
7440575   
31
7440699   
22

Space Group Name
Fm_ 3m   
C12/m1   

Space Group Number
225.00   
2
12.00   
12

Facts

Interesting Facts
  • It is found in copper ores and from the crust of the earth.
  • It is the most malleable and ductile metal.
  • Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
  • 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, Mining, Ores of metals   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Unknown   
Claude François Geoffroy   

Discovery
Before 6000 BCE   
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 %   
99+
0.00 %   
99+

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

Abundance In Oceans
0.00 %   
21
0.00 %   
24

Abundance In Humans
0.00 %   
18
Not Available   

Uses

Uses & Benefits
  • Gold metal is mainly used for Jewelry, bullion, coinage, etc.
  • It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  
  • 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, Electronic 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   
35
0.02 Blood/mg dm-3   
20

In Bone
0.02 p.p.m.   
30
0.20 p.p.m.   
22

Physical Properties

Melting Point
1,064.43 °C   
99+
271.30 °C   
99+

Boiling Point
2,807.00 °C   
36
1,560.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gold   
Silver   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
2.50   
14
2.25   
15

Brinell Hardness
194.00 MPa   
99+
70.00 MPa   
99+

Vickers Hardness
216.00 MPa   
31
Not Available   

Speed of Sound
2,030.00 m/s   
99+
1,790.00 m/s   
99+

Optical Properties
  
  

Reflectivity
95.00 %   
2
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
Au   
Bi   

Isotopes
  
  

Known Isotopes
36   
3
33   
6

Electronegativity
  
  

Pauling Electronegativity
2.54   
1
2.02   
6

Sanderson Electronegativity
Not Available   
2.34   
3

Allred Rochow Electronegativity
1.42   
18
1.67   
6

Mulliken-Jaffe Electronegativity
1.87   
7
2.15   
4

Allen Electronegativity
1.92   
5
2.01   
4

Electropositivity
  
  

Pauling Electropositivity
1.46   
99+
1.98   
99+

Ionization Energies
  
  

1st Energy Level
890.10 kJ/mol   
8
703.00 kJ/mol   
35

2nd Energy Level
1,980.00 kJ/mol   
12
1,610.00 kJ/mol   
33

3rd Energy Level
Not Available   
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
2.45 g/amp-hr   
21
2.60 g/amp-hr   
19

Electron Work Function
5.10 eV   
4
4.22 eV   
22

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

Atomic Properties

Atomic Number
79   
37
83   
33

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

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

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

Atom
  
  

Number of Protons
79   
37
83   
33

Number of Neutrons
118   
23
126   
18

Number of Electrons
79   
37
83   
33

Radius of an Atom
  
  

Atomic Radius
151.00 pm   
32
156.00 pm   
29

Covalent Radius
144.00 pm   
40
148.00 pm   
36

Van der Waals Radius
166.00 pm   
39
207.00 pm   
26

Atomic Weight
196.97 amu   
33
208.98 amu   
29

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

Adjacent Atomic Numbers
  
  

Previous Element
Platinum
  
Lead
  

Next Element
Mercury
  
Polonium
  

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

Lattice Constant
407.82 pm   
21
667.40 pm   
2

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
1.61   
4
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
19.30 g/cm3   
15
9.78 g/cm3   
39

Density When Liquid (at m.p.)
17.31 g/cm3   
6
10.05 g/cm3   
18

Tensile Strength
120.00 MPa   
15
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
23
Not Available   

Vapor Pressure at 2000 K
67.00 (Pa)   
4
Not Available   

Elasticity properties
  
  

Shear Modulus
27.00 GPa   
27
12.00 GPa   
99+

Bulk Modulus
180.00 GPa   
9
31.00 GPa   
38

Young's Modulus
79.00 GPa   
24
32.00 GPa   
99+

Poisson Ratio
0.40   
4
0.33   
11

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
19.32   
8
9.79   
30

Magnetic Ordering
Diamagnetic   
Diamagnetic   

Permeability
Not Available   
0.00 H/m   
6

Susceptibility
Not Available   
0.00   
6

Electrical Properties
  
  

Electrical Property
Conductor   
Semiconductor   

Resistivity
2.20 nΩ·m   
99+
1.29 nΩ·m   
99+

Electrical Conductivity
0.45 106/cm Ω   
3
0.01 106/cm Ω   
99+

Electron Affinity
222.80 kJ/mol   
1
91.20 kJ/mol   
11

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
0.12 J/(kg K)   
40

Molar Heat Capacity
25.42 J/mol·K   
40
25.52 J/mol·K   
37

Thermal Conductivity
318.00 W/m·K   
3
7.97 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
14.20 µm/(m·K)   
26
13.40 µm/(m·K)   
28

Enthalpy
  
  

Enthalpy of Vaporization
324.40 kJ/mol   
27
151.00 kJ/mol   
99+

Enthalpy of Fusion
12.55 kJ/mol   
27
10.90 kJ/mol   
33

Enthalpy of Atomization
364.00 kJ/mol   
25
207.10 kJ/mol   
99+

Standard Molar Entropy
47.40 J/mol.K   
32
56.70 J/mol.K   
24

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