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Gold vs Aluminium


Aluminium vs Gold


Periodic Table

Symbol
Au  
Al  

Group Number
11  
7
13  
5

Period Number
6  
3  

Block
d block  
p block  

Element Family
Transition Metal  
Post-​Transition  

CAS Number
7440575  
31
7429905  
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.
  
  • Aluminum’s abundance percentage is more as it is found in more than 260 minerals.
  • Pure Aluminum always reacts with oxygen rapidly.
  • It is a good conductor of heat and electricity and used in transmission lines.
  

Sources
Earth's crust, Mining, Ores of metals  
By Electrolysis Process, Earth's crust, Mining  

History
  
  

Who Discovered
-  
Hans Christian Oersted  

Discovery
Before 6000 BCE  
In 1825  

Abundance
  
  

Abundance In Universe
0.00 %  
27
0.01 %  
6

Abundance In Sun
0.00 %  
26
0.01 %  
5

Abundance In Meteorites
0.00 %  
99+
0.91 %  
5

Abundance In Earth's Crust
0.00 %  
99+
8.10 %  
1

Abundance In Oceans
0.00 %  
21
0.00 %  
6

Abundance In Humans
0.00 %  
21
0.00 %  
11

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.
  
  • Aluminum is used in a various products; for example, cans, foils, kitchen utensils, window frames, beer kegs and aero plane parts, automobile parts, etc.
  

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

Medical Uses
Dentistry, Pharmaceutical Industry  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  

Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Alloys, 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
0.39 Blood/mg dm-3  
9

In Bone
0.02 p.p.m.  
35
27.00 p.p.m.  
11

Physical

Melting Point
1,064.43 °C  
99+
660.37 °C  
99+

Boiling Point
2,807.00 °C  
37
2,467.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Gold  
Silvery Gray  

Luster
Metallic  
Metallic  

Hardness
  
  

Mohs Hardness
2.50  
15
2.75  
14

Brinell Hardness
194.00 MPa  
99+
160.00 MPa  
99+

Vickers Hardness
216.00 MPa  
99+
160.00 MPa  
99+

Speed of Sound
2,030.00 m/s  
99+
5,000.00 m/s  
14

Optical Properties
  
  

Refractive Index
0.47  
99+
1.61  
31

Reflectivity
95.00 %  
2
71.00 %  
12

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Au  
Al  

Isotopes
  
  

Known Isotopes
36  
3
11  
27

Electronegativity
  
  

Pauling Electronegativity
2.54  
2
1.61  
23

Sanderson Electronegativity
1.50  
18
1.71  
16

Allred Rochow Electronegativity
1.42  
19
1.47  
15

Mulliken-Jaffe Electronegativity
1.87  
15
1.83  
16

Allen Electronegativity
1.92  
7
1.61  
23

Electropositivity
  
  

Pauling Electropositivity
1.46  
99+
2.39  
32

Ionization Energies
  
  

1st Energy Level
890.10 kJ/mol  
8
577.50 kJ/mol  
99+

2nd Energy Level
1,980.00 kJ/mol  
12
1,816.70 kJ/mol  
20

3rd Energy Level
2,856.00 kJ/mol  
33
2,744.80 kJ/mol  
39

4th Energy Level
890.10 kJ/mol  
99+
11,577.00 kJ/mol  
3

5th Energy Level
8,901.00 kJ/mol  
6
14,842.00 kJ/mol  
2

6th Energy Level
8,901.00 kJ/mol  
24
18,379.00 kJ/mol  
2

7th Energy level
8,901.00 kJ/mol  
21
23,326.00 kJ/mol  
2

8th Energy Level
8,900.00 kJ/mol  
20
27,465.00 kJ/mol  
2

9th Energy Level
8,901.00 kJ/mol  
20
31,853.00 kJ/mol  
2

10th Energy Level
8,901.00 kJ/mol  
21
38,473.00 kJ/mol  
4

11th Energy Level
8,901.00 kJ/mol  
19
42,647.00 kJ/mol  
5

12th Energy Level
8,900.00 kJ/mol  
39
5,770.00 kJ/mol  
99+

13th Energy Level
8,900.00 kJ/mol  
14
5,770.00 kJ/mol  
99+

14th Energy Level
890.10 kJ/mol  
99+
577.50 kJ/mol  
99+

15th Energy Level
89,000.00 kJ/mol  
7
57,700.00 kJ/mol  
99+

16th Energy Level
890.10 kJ/mol  
99+
577.50 kJ/mol  
99+

17th Energy Level
890.10 kJ/mol  
25
577.50 kJ/mol  
99+

18th Energy Level
8,901.00 kJ/mol  
14
5,775.00 kJ/mol  
99+

19th Energy Level
890.10 kJ/mol  
23
577.50 kJ/mol  
99+

20th Energy Level
890.00 kJ/mol  
13
577.00 kJ/mol  
99+

21st Energy Level
890.10 kJ/mol  
35
577.50 kJ/mol  
99+

22nd Energy Level
890.00 kJ/mol  
11
577.00 kJ/mol  
99+

23rd Energy Level
890.10 kJ/mol  
38
577.50 kJ/mol  
99+

24th Energy Level
890.10 kJ/mol  
6
577.50 kJ/mol  
99+

25th Energy Level
890.00 kJ/mol  
5
577.50 kJ/mol  
99+

26th Energy Level
890.10 kJ/mol  
5
577.50 kJ/mol  
99+

27th Energy Level
890.10 kJ/mol  
4
577.50 kJ/mol  
99+

28th Energy Level
890.10 kJ/mol  
7
577.50 kJ/mol  
99+

29th Energy Level
890.10 kJ/mol  
8
577.50 kJ/mol  
99+

30th Energy Level
890.10 kJ/mol  
5
577.50 kJ/mol  
99+

Electrochemical Equivalent
2.45 g/amp-hr  
25
0.34 g/amp-hr  
99+

Electron Work Function
5.10 eV  
8
4.28 eV  
26

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

Atomic

Atomic Number
79  
37
13  
99+

Electron Configuration
[Xe] 4f14 5d10 6s1  
[Ne] 3s2 3p1  

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

Crystal Lattice
FCC-Crystal-Structure-of-Gold.jpg#100  
FCC-Crystal-Structure-of-Aluminium.jpg#100  

Atom
  
  

Number of Protons
79  
37
13  
99+

Number of Neutrons
118  
24
14  
99+

Number of Electrons
79  
37
13  
99+

Radius of an Atom
  
  

Atomic Radius
151.00 pm  
34
143.00 pm  
39

Covalent Radius
144.00 pm  
99+
121.00 pm  
99+

Van der Waals Radius
166.00 pm  
99+
184.00 pm  
99+

Atomic Weight
196.97 amu  
33
26.98 amu  
99+

Atomic Volume
10.20 cm3/mol  
99+
10.00 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Platinum
  
Magnesium
  

Next Element
Mercury
  
Potassium
  

Valence Electron Potential
43.40 (-eV)  
99+
80.70 (-eV)  
17

Lattice Constant
407.82 pm  
24
404.95 pm  
25

Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  

Lattice C/A Ratio
1.61  
18
1.58  
34

Mechanical

Density
  
  

Density At Room Temperature
19.30 g/cm3  
15
2.70 g/cm3  
99+

Density When Liquid (at m.p.)
17.31 g/cm3  
16
2.38 g/cm3  
99+

Tensile Strength
120.00 MPa  
27
40.00 MPa  
99+

Viscosity
0.00  
23
0.00  
23

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
25
0.00 (Pa)  
19

Vapor Pressure at 2000 K
67.00 (Pa)  
4
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
27.00 GPa  
34
26.00 GPa  
36

Bulk Modulus
180.00 GPa  
9
76.00 GPa  
19

Young's Modulus
79.00 GPa  
26
70.00 GPa  
30

Poisson Ratio
0.40  
4
0.35  
9

Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
19.32  
17
2.72  
99+

Magnetic Ordering
Diamagnetic  
Paramagnetic  

Permeability
0.00 H/m  
10
0.00 H/m  
18

Susceptibility
0.00  
22
0.00  
11

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
2.20 nΩ·m  
99+
28.20 nΩ·m  
99+

Electrical Conductivity
0.45 106/cm Ω  
3
0.38 106/cm Ω  
4

Electron Affinity
222.80 kJ/mol  
1
42.50 kJ/mol  
31

Thermal

Specific Heat
0.13 J/(kg K)  
40
0.90 J/(kg K)  
5

Molar Heat Capacity
25.42 J/mol·K  
99+
24.20 J/mol·K  
99+

Thermal Conductivity
318.00 W/m·K  
3
237.00 W/m·K  
4

Critical Temperature
1,337.00 K  
99+
933.00 K  
99+

Thermal Expansion
14.20 µm/(m·K)  
29
23.10 µm/(m·K)  
18

Enthalpy
  
  

Enthalpy of Vaporization
324.40 kJ/mol  
99+
293.70 kJ/mol  
99+

Enthalpy of Fusion
12.55 kJ/mol  
33
10.67 kJ/mol  
99+

Enthalpy of Atomization
364.00 kJ/mol  
34
322.20 kJ/mol  
99+

Standard Molar Entropy
47.40 J/mol.K  
99+
28.30 J/mol.K  
99+

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