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Zinc Gold Comparison

Zinc
Gold
Gold Zinc comparison


Periodic Table
Symbol
Zn  
Au  
Group Number
12  
6
11  
7
Period Number
4  
6  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440666  
24
7440575  
31
Space Group Name
P63/mmc  
Fm_ 3m  
Space Group Number
194.00  
7
225.00  
3
Facts
Interesting Facts
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.
  
  • 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
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Mining, Ores of metals  
History
  
  
Who Discovered
Indian metallurgists  
-  
Discovery
Before 1000 BCE  
Before 6000 BCE  
Abundance
  
  
Abundance In Universe
0.00 %  
12
0.00 %  
27
Abundance In Sun
0.00 %  
10
0.00 %  
26
Abundance In Meteorites
0.02 %  
12
0.00 %  
99+
Abundance In Earth's Crust
0.01 %  
16
0.00 %  
99+
Abundance In Oceans
0.00 %  
10
0.00 %  
21
Abundance In Humans
0.00 %  
7
0.00 %  
21
Uses
Uses & Benefits
  • It is mainly used for Galvanizing other metals.
  • It is also used for manufacturing die-casting and it is very essential for automobile industry.
  
  • 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
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
Highly Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
7.00 Blood/mg dm-3  
6
0.00 Blood/mg dm-3  
38
In Bone
170.00 p.p.m.  
6
0.02 p.p.m.  
35
Physical
Melting Point
419.58 °C  
99+
1,064.43 °C  
99+
Boiling Point
907.00 °C  
99+
2,807.00 °C  
37
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Gold  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
2.50  
15
2.50  
15
Brinell Hardness
327.00 MPa  
39
194.00 MPa  
99+
Vickers Hardness
207.00 MPa  
99+
216.00 MPa  
99+
Speed of Sound
3,850.00 m/s  
25
2,030.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.00  
99+
0.47  
99+
Reflectivity
80.00 %  
7
95.00 %  
2
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Zn  
Au  
Isotopes
  
  
Known Isotopes
25  
14
36  
3
Electronegativity
  
  
Pauling Electronegativity
1.65  
20
2.54  
2
Sanderson Electronegativity
2.23  
7
1.50  
18
Allred Rochow Electronegativity
1.66  
8
1.42  
19
Mulliken-Jaffe Electronegativity
1.65  
20
1.87  
15
Allen Electronegativity
1.59  
25
1.92  
7
Electropositivity
  
  
Pauling Electropositivity
2.35  
35
1.46  
99+
Ionization Energies
  
  
1st Energy Level
906.40 kJ/mol  
6
890.10 kJ/mol  
8
2nd Energy Level
1,733.30 kJ/mol  
28
1,980.00 kJ/mol  
12
3rd Energy Level
3,833.00 kJ/mol  
12
2,856.00 kJ/mol  
33
4th Energy Level
5,731.00 kJ/mol  
20
890.10 kJ/mol  
99+
5th Energy Level
7,970.00 kJ/mol  
15
8,901.00 kJ/mol  
6
6th Energy Level
10,400.00 kJ/mol  
15
8,901.00 kJ/mol  
24
7th Energy level
12,900.00 kJ/mol  
9
8,901.00 kJ/mol  
21
8th Energy Level
16,800.00 kJ/mol  
6
8,900.00 kJ/mol  
20
9th Energy Level
19,600.00 kJ/mol  
8
8,901.00 kJ/mol  
20
10th Energy Level
23,000.00 kJ/mol  
10
8,901.00 kJ/mol  
21
11th Energy Level
26,400.00 kJ/mol  
11
8,901.00 kJ/mol  
19
12th Energy Level
29,990.00 kJ/mol  
33
8,900.00 kJ/mol  
39
13th Energy Level
40,490.00 kJ/mol  
5
8,900.00 kJ/mol  
14
14th Energy Level
43,800.00 kJ/mol  
6
890.10 kJ/mol  
99+
15th Energy Level
47,300.00 kJ/mol  
99+
89,000.00 kJ/mol  
7
16th Energy Level
52,300.00 kJ/mol  
99+
890.10 kJ/mol  
99+
17th Energy Level
55,900.00 kJ/mol  
10
890.10 kJ/mol  
25
18th Energy Level
59,700.00 kJ/mol  
11
8,901.00 kJ/mol  
14
19th Energy Level
67,300.00 kJ/mol  
10
890.10 kJ/mol  
23
20th Energy Level
171,200.00 kJ/mol  
1
890.00 kJ/mol  
13
21st Energy Level
179,100.00 kJ/mol  
1
890.10 kJ/mol  
35
22nd Energy Level
906.00 kJ/mol  
9
890.00 kJ/mol  
11
23rd Energy Level
906.40 kJ/mol  
37
890.10 kJ/mol  
38
24th Energy Level
906.40 kJ/mol  
5
890.10 kJ/mol  
6
25th Energy Level
906.40 kJ/mol  
4
890.00 kJ/mol  
5
26th Energy Level
906.40 kJ/mol  
4
890.10 kJ/mol  
5
27th Energy Level
906.40 kJ/mol  
3
890.10 kJ/mol  
4
28th Energy Level
906.40 kJ/mol  
6
890.10 kJ/mol  
7
29th Energy Level
906.40 kJ/mol  
7
890.10 kJ/mol  
8
30th Energy Level
906.40 kJ/mol  
4
890.10 kJ/mol  
5
Electrochemical Equivalent
1.22 g/amp-hr  
99+
2.45 g/amp-hr  
25
Electron Work Function
4.33 eV  
24
5.10 eV  
8
Other Chemical Properties
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes  
Chemical Stability, Ionization, Solubility  
Atomic
Atomic Number
30  
99+
79  
37
Electron Configuration
[Ar] 3d10 4s2  
[Xe] 4f14 5d10 6s1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Zinc.jpg#100  
FCC-Crystal-Structure-of-Gold.jpg#100  
Atom
  
  
Number of Protons
30  
99+
79  
37
Number of Neutrons
35  
99+
118  
24
Number of Electrons
30  
99+
79  
37
Radius of an Atom
  
  
Atomic Radius
134.00 pm  
99+
151.00 pm  
34
Covalent Radius
122.00 pm  
99+
144.00 pm  
99+
Van der Waals Radius
139.00 pm  
99+
166.00 pm  
99+
Atomic Weight
65.38 amu  
99+
196.97 amu  
33
Atomic Volume
9.20 cm3/mol  
99+
10.20 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Copper
  
Platinum
  
Next Element
Gallium
  
Mercury
  
Valence Electron Potential
38.90 (-eV)  
99+
43.40 (-eV)  
99+
Lattice Constant
266.49 pm  
99+
407.82 pm  
24
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.86  
4
1.61  
18
Mechanical
Density
  
  
Density At Room Temperature
7.14 g/cm3  
99+
19.30 g/cm3  
15
Density When Liquid (at m.p.)
6.57 g/cm3  
99+
17.31 g/cm3  
16
Tensile Strength
120.00 MPa  
27
120.00 MPa  
27
Viscosity
0.00  
7
0.00  
23
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
25
Vapor Pressure at 2000 K
0.00 (Pa)  
37
67.00 (Pa)  
4
Elasticity properties
  
  
Shear Modulus
43.00 GPa  
18
27.00 GPa  
34
Bulk Modulus
70.00 GPa  
20
180.00 GPa  
9
Young's Modulus
108.00 GPa  
21
79.00 GPa  
26
Poisson Ratio
0.25  
24
0.40  
4
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
6.90  
99+
19.32  
17
Magnetic Ordering
Diamagnetic  
Diamagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
10
Susceptibility
0.00  
6
0.00  
22
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
59.00 nΩ·m  
40
2.20 nΩ·m  
99+
Electrical Conductivity
0.17 106/cm Ω  
12
0.45 106/cm Ω  
3
Electron Affinity
0.00 kJ/mol  
99+
222.80 kJ/mol  
1
Thermal
Specific Heat
0.39 J/(kg K)  
14
0.13 J/(kg K)  
40
Molar Heat Capacity
25.47 J/mol·K  
99+
25.42 J/mol·K  
99+
Thermal Conductivity
116.00 W/m·K  
14
318.00 W/m·K  
3
Critical Temperature
692.00 K  
99+
1,337.00 K  
99+
Thermal Expansion
30.20 µm/(m·K)  
11
14.20 µm/(m·K)  
29
Enthalpy
  
  
Enthalpy of Vaporization
7.32 kJ/mol  
99+
324.40 kJ/mol  
99+
Enthalpy of Fusion
7.32 kJ/mol  
99+
12.55 kJ/mol  
33
Enthalpy of Atomization
129.70 kJ/mol  
99+
364.00 kJ/mol  
34
Standard Molar Entropy
41.60 J/mol.K  
99+
47.40 J/mol.K  
99+
Summary >>
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