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Gold vs Silver

Gold
Silver
Silver vs Gold


Periodic Table
Symbol
Au  
Ag  
Group Number
11  
7
11  
7
Period Number
6  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440575  
31
7440224  
99+
Space Group Name
Fm_ 3m  
Fm_ 3m  
Space Group Number
225.00  
3
225.00  
3
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.
  
  • 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
Earth's crust, Mining, Ores of metals  
Earth's crust, Found in Minerals, Ores of metals  
History
  
  
Who Discovered
-  
-  
Discovery
Before 6000 BCE  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
27
0.00 %  
27
Abundance In Sun
0.00 %  
26
0.00 %  
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 %  
21
0.00 %  
19
Abundance In Humans
0.00 %  
21
0.00 %  
24
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.
  
  • Silver is mainly used for Jewelry and show piece.
  • It is used for manufacturing high quality mirrors due to its reflectivity property.
  
Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  
Chemical Industry, Clothing Industry, Electrical Industry  
Medical Uses
Dentistry, Pharmaceutical Industry  
Dentistry, Pharmaceutical Industry  
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Non Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
38
0.00 Blood/mg dm-3  
29
In Bone
0.02 p.p.m.  
35
0.44 p.p.m.  
24
Physical
Melting Point
1,064.43 °C  
99+
961.93 °C  
99+
Boiling Point
2,807.00 °C  
37
2,212.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gold  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
2.50  
15
2.50  
15
Brinell Hardness
194.00 MPa  
99+
251.00 MPa  
99+
Vickers Hardness
216.00 MPa  
99+
229.00 MPa  
99+
Speed of Sound
2,030.00 m/s  
99+
2,680.00 m/s  
99+
Optical Properties
  
  
Refractive Index
0.47  
99+
0.16  
99+
Reflectivity
95.00 %  
2
97.00 %  
1
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Au  
Ag  
Isotopes
  
  
Known Isotopes
36  
3
36  
3
Electronegativity
  
  
Pauling Electronegativity
2.54  
2
1.93  
10
Sanderson Electronegativity
1.50  
18
1.83  
14
Allred Rochow Electronegativity
1.42  
19
1.42  
19
Mulliken-Jaffe Electronegativity
1.87  
15
1.47  
28
Allen Electronegativity
1.92  
7
1.87  
10
Electropositivity
  
  
Pauling Electropositivity
1.46  
99+
2.07  
99+
Ionization Energies
  
  
1st Energy Level
890.10 kJ/mol  
8
731.00 kJ/mol  
27
2nd Energy Level
1,980.00 kJ/mol  
12
2,070.00 kJ/mol  
11
3rd Energy Level
2,856.00 kJ/mol  
33
3,361.00 kJ/mol  
19
4th Energy Level
890.10 kJ/mol  
99+
7,310.00 kJ/mol  
10
5th Energy Level
8,901.00 kJ/mol  
6
7,310.00 kJ/mol  
24
6th Energy Level
8,901.00 kJ/mol  
24
7,310.00 kJ/mol  
39
7th Energy level
8,901.00 kJ/mol  
21
7,310.00 kJ/mol  
33
8th Energy Level
8,900.00 kJ/mol  
20
7,310.00 kJ/mol  
31
9th Energy Level
8,901.00 kJ/mol  
20
7,310.00 kJ/mol  
27
10th Energy Level
8,901.00 kJ/mol  
21
7,310.00 kJ/mol  
32
11th Energy Level
8,901.00 kJ/mol  
19
7,310.00 kJ/mol  
31
12th Energy Level
8,900.00 kJ/mol  
39
7,310.00 kJ/mol  
99+
13th Energy Level
8,900.00 kJ/mol  
14
7,310.00 kJ/mol  
25
14th Energy Level
890.10 kJ/mol  
99+
731.00 kJ/mol  
99+
15th Energy Level
89,000.00 kJ/mol  
7
73,100.00 kJ/mol  
22
16th Energy Level
890.10 kJ/mol  
99+
73,100.00 kJ/mol  
17
17th Energy Level
890.10 kJ/mol  
25
731.00 kJ/mol  
38
18th Energy Level
8,901.00 kJ/mol  
14
7,310.00 kJ/mol  
28
19th Energy Level
890.10 kJ/mol  
23
731.00 kJ/mol  
35
20th Energy Level
890.00 kJ/mol  
13
731.00 kJ/mol  
29
21st Energy Level
890.10 kJ/mol  
35
731.00 kJ/mol  
99+
22nd Energy Level
890.00 kJ/mol  
11
731.00 kJ/mol  
23
23rd Energy Level
890.10 kJ/mol  
38
731.00 kJ/mol  
99+
24th Energy Level
890.10 kJ/mol  
6
731.00 kJ/mol  
22
25th Energy Level
890.00 kJ/mol  
5
731.00 kJ/mol  
22
26th Energy Level
890.10 kJ/mol  
5
731.00 kJ/mol  
22
27th Energy Level
890.10 kJ/mol  
4
731.00 kJ/mol  
21
28th Energy Level
890.10 kJ/mol  
7
731.00 kJ/mol  
27
29th Energy Level
890.10 kJ/mol  
8
731.00 kJ/mol  
28
30th Energy Level
890.10 kJ/mol  
5
731.00 kJ/mol  
22
Electrochemical Equivalent
2.45 g/amp-hr  
25
4.02 g/amp-hr  
7
Electron Work Function
5.10 eV  
8
4.26 eV  
27
Other Chemical Properties
Chemical Stability, Ionization, Solubility  
Chemical Stability, Ionization, Solubility  
Atomic
Atomic Number
79  
37
47  
99+
Electron Configuration
[Xe] 4f14 5d10 6s1  
[Kr] 4d10 5s1  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Gold.jpg#100  
FCC-Crystal-Structure-of-Silver.jpg#100  
Atom
  
  
Number of Protons
79  
37
47  
99+
Number of Neutrons
118  
24
61  
99+
Number of Electrons
79  
37
47  
99+
Radius of an Atom
  
  
Atomic Radius
151.00 pm  
34
144.00 pm  
38
Covalent Radius
144.00 pm  
99+
145.00 pm  
99+
Van der Waals Radius
166.00 pm  
99+
172.00 pm  
99+
Atomic Weight
196.97 amu  
33
107.87 amu  
99+
Atomic Volume
10.20 cm3/mol  
99+
10.30 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Platinum
  
Palladium
  
Next Element
Mercury
  
Cadmium
  
Valence Electron Potential
43.40 (-eV)  
99+
11.40 (-eV)  
99+
Lattice Constant
407.82 pm  
24
408.53 pm  
23
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.61  
18
1.59  
26
Mechanical
Density
  
  
Density At Room Temperature
19.30 g/cm3  
15
10.49 g/cm3  
37
Density When Liquid (at m.p.)
17.31 g/cm3  
16
9.32 g/cm3  
99+
Tensile Strength
120.00 MPa  
27
170.00 MPa  
21
Viscosity
0.00  
23
0.00  
23
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
25
0.00 (Pa)  
14
Vapor Pressure at 2000 K
67.00 (Pa)  
4
0.00 (Pa)  
38
Elasticity properties
  
  
Shear Modulus
27.00 GPa  
34
30.00 GPa  
27
Bulk Modulus
180.00 GPa  
9
100.00 GPa  
16
Young's Modulus
79.00 GPa  
26
83.00 GPa  
25
Poisson Ratio
0.40  
4
0.37  
7
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
19.32  
17
10.50  
39
Magnetic Ordering
Diamagnetic  
Diamagnetic  
Permeability
0.00 H/m  
10
0.00 H/m  
17
Susceptibility
0.00  
22
0.00  
32
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
2.20 nΩ·m  
99+
15.87 nΩ·m  
99+
Electrical Conductivity
0.45 106/cm Ω  
3
0.63 106/cm Ω  
1
Electron Affinity
222.80 kJ/mol  
1
125.60 kJ/mol  
5
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.24 J/(kg K)  
25
Molar Heat Capacity
25.42 J/mol·K  
99+
25.35 J/mol·K  
99+
Thermal Conductivity
318.00 W/m·K  
3
429.00 W/m·K  
1
Critical Temperature
1,337.00 K  
99+
1,235.00 K  
99+
Thermal Expansion
14.20 µm/(m·K)  
29
18.90 µm/(m·K)  
25
Enthalpy
  
  
Enthalpy of Vaporization
324.40 kJ/mol  
99+
255.10 kJ/mol  
99+
Enthalpy of Fusion
12.55 kJ/mol  
33
11.30 kJ/mol  
37
Enthalpy of Atomization
364.00 kJ/mol  
34
284.50 kJ/mol  
99+
Standard Molar Entropy
47.40 J/mol.K  
99+
42.60 J/mol.K  
99+
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