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Bismuth vs Gold


Gold vs Bismuth


Periodic Table

Symbol
Bi   
Au   

Group Number
15   
3
11   
7

Period Number
6   
6   

Block
p block   
d block   

Element Family
Post-​Transition   
Transition Metal   

CAS Number
7440699   
22
7440575   
31

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 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.
  

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

History
  
  

Who Discovered
Claude François Geoffroy   
Unknown   

Discovery
In 1753   
Before 6000 BCE   

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 %   
99+

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

Abundance In Oceans
0.00 %   
24
0.00 %   
21

Abundance In Humans
Not Available   
0.00 %   
18

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.
  
  • 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.
  

Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Chemical Industry, Clothing Industry, Electrical Industry, Electronic 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   
35

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

Physical Properties

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

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

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Gold   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
2.25   
15
2.50   
14

Brinell Hardness
70.00 MPa   
99+
194.00 MPa   
99+

Vickers Hardness
Not Available   
216.00 MPa   
31

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

Optical Properties
  
  

Reflectivity
Not Available   
95.00 %   
2

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   
Au   

Isotopes
  
  

Known Isotopes
33   
6
36   
3

Electronegativity
  
  

Pauling Electronegativity
2.02   
6
2.54   
1

Sanderson Electronegativity
2.34   
3
Not Available   

Allred Rochow Electronegativity
1.67   
6
1.42   
18

Mulliken-Jaffe Electronegativity
2.15   
4
1.87   
7

Allen Electronegativity
2.01   
4
1.92   
5

Electropositivity
  
  

Pauling Electropositivity
1.98   
99+
1.46   
99+

Ionization Energies
  
  

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

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

3rd Energy Level
2,466.00 kJ/mol   
99+
Not Available   

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
2.45 g/amp-hr   
21

Electron Work Function
4.22 eV   
22
5.10 eV   
4

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

Atomic Properties

Atomic Number
83   
33
79   
37

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

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

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

Atom
  
  

Number of Protons
83   
33
79   
37

Number of Neutrons
126   
18
118   
23

Number of Electrons
83   
33
79   
37

Radius of an Atom
  
  

Atomic Radius
156.00 pm   
29
151.00 pm   
32

Covalent Radius
148.00 pm   
36
144.00 pm   
40

Van der Waals Radius
207.00 pm   
26
166.00 pm   
39

Atomic Weight
208.98 amu   
29
196.97 amu   
33

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

Adjacent Atomic Numbers
  
  

Previous Element
Lead
  
Platinum
  

Next Element
Polonium
  
Mercury
  

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

Lattice Constant
667.40 pm   
2
407.82 pm   
21

Lattice Angles
NA   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
1.61   
4

Mechanical Properties

Density
  
  

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

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

Tensile Strength
Not Available   
120.00 MPa   
15

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

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

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

Elasticity properties
  
  

Shear Modulus
12.00 GPa   
99+
27.00 GPa   
27

Bulk Modulus
31.00 GPa   
38
180.00 GPa   
9

Young's Modulus
32.00 GPa   
99+
79.00 GPa   
24

Poisson Ratio
0.33   
11
0.40   
4

Other Mechanical Properties
NA   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.79   
30
19.32   
8

Magnetic Ordering
Diamagnetic   
Diamagnetic   

Permeability
0.00 H/m   
6
Not Available   

Susceptibility
0.00   
6
Not Available   

Electrical Properties
  
  

Electrical Property
Semiconductor   
Conductor   

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

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

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

Thermal Properties

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

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

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

Critical Temperature
Not Available   
Not Available   

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

Enthalpy
  
  

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

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

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

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

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