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Beryllium vs Aluminium

Beryllium
Aluminium
Aluminium vs Beryllium


Periodic Table
Symbol
Be  
Al  
Group Number
2  
16
13  
5
Period Number
2  
3  
Block
s block  
p block  
Element Family
Alkaline Earth  
Post-​Transition  
CAS Number
7440417  
99+
7429905  
99+
Space Group Name
P63/mmc  
Fm_ 3m  
Space Group Number
194.00  
7
225.00  
3
Facts
Interesting Facts
  • Beryllium is best anti corrosion metal.
  • Beryllium is the lightest metal and still it is stronger than steel.
  • It also finds various applications in Nuclear reactors as a reflector.
  
  • 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, Found in Minerals, Mining, Ores of metals, Ores of Minerals  
By Electrolysis Process, Earth's crust, Mining  
History
  
  
Who Discovered
Louis Nicolas Vauquelin  
Hans Christian Oersted  
Discovery
In 1797  
In 1825  
Abundance
  
  
Abundance In Universe
0.00 %  
24
0.01 %  
6
Abundance In Sun
0.00 %  
29
0.01 %  
5
Abundance In Meteorites
0.00 %  
99+
0.91 %  
5
Abundance In Earth's Crust
0.00 %  
35
8.10 %  
1
Abundance In Oceans
0.00 %  
39
0.00 %  
6
Abundance In Humans
0.00 %  
22
0.00 %  
11
Uses
Uses & Benefits
  • Its alloys with copper or nickel are used in manufacturing Gyroscopes, springs, electrical contact and non sparking tools.
  • Beryllium Alloys are used as a material for aircraft, missiles, spacecraft and satellite.
  
  • 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
Aerospace Industry, Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Alloys  
Alloys, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
35
0.39 Blood/mg dm-3  
9
In Bone
0.00 p.p.m.  
37
27.00 p.p.m.  
11
Physical
Melting Point
1,278.00 °C  
36
660.37 °C  
99+
Boiling Point
2,970.00 °C  
33
2,467.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
White Gray  
Silvery Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
5.50  
7
2.75  
14
Brinell Hardness
590.00 MPa  
25
160.00 MPa  
99+
Vickers Hardness
1,670.00 MPa  
9
160.00 MPa  
99+
Speed of Sound
12,890.00 m/s  
2
5,000.00 m/s  
14
Optical Properties
  
  
Refractive Index
1.56  
34
1.61  
31
Reflectivity
65.00 %  
18
71.00 %  
12
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Be  
Al  
Isotopes
  
  
Known Isotopes
9  
29
11  
27
Electronegativity
  
  
Pauling Electronegativity
1.57  
25
1.61  
23
Sanderson Electronegativity
1.81  
15
1.71  
16
Allred Rochow Electronegativity
1.47  
15
1.47  
15
Mulliken-Jaffe Electronegativity
1.54  
24
1.83  
16
Allen Electronegativity
1.58  
26
1.61  
23
Electropositivity
  
  
Pauling Electropositivity
2.43  
30
2.39  
32
Ionization Energies
  
  
1st Energy Level
899.50 kJ/mol  
7
577.50 kJ/mol  
99+
2nd Energy Level
1,757.10 kJ/mol  
24
1,816.70 kJ/mol  
20
3rd Energy Level
14,848.70 kJ/mol  
2
2,744.80 kJ/mol  
39
4th Energy Level
21,006.60 kJ/mol  
2
11,577.00 kJ/mol  
3
5th Energy Level
2,970.00 kJ/mol  
99+
14,842.00 kJ/mol  
2
6th Energy Level
1,470.00 kJ/mol  
99+
18,379.00 kJ/mol  
2
7th Energy level
2,970.00 kJ/mol  
99+
23,326.00 kJ/mol  
2
8th Energy Level
2,970.00 kJ/mol  
99+
27,465.00 kJ/mol  
2
9th Energy Level
2,970.00 kJ/mol  
99+
31,853.00 kJ/mol  
2
10th Energy Level
2,970.00 kJ/mol  
99+
38,473.00 kJ/mol  
4
11th Energy Level
2,970.00 kJ/mol  
99+
42,647.00 kJ/mol  
5
12th Energy Level
29,700.00 kJ/mol  
35
5,770.00 kJ/mol  
99+
13th Energy Level
2,970.00 kJ/mol  
99+
5,770.00 kJ/mol  
99+
14th Energy Level
2,970.00 kJ/mol  
99+
577.50 kJ/mol  
99+
15th Energy Level
89,900.00 kJ/mol  
5
57,700.00 kJ/mol  
99+
16th Energy Level
89,900.00 kJ/mol  
8
577.50 kJ/mol  
99+
17th Energy Level
2,970.00 kJ/mol  
14
577.50 kJ/mol  
99+
18th Energy Level
8,995.00 kJ/mol  
13
5,775.00 kJ/mol  
99+
19th Energy Level
899.50 kJ/mol  
22
577.50 kJ/mol  
99+
20th Energy Level
899.00 kJ/mol  
12
577.00 kJ/mol  
99+
21st Energy Level
2,970.00 kJ/mol  
26
577.50 kJ/mol  
99+
22nd Energy Level
899.00 kJ/mol  
10
577.00 kJ/mol  
99+
23rd Energy Level
2,970.00 kJ/mol  
31
577.50 kJ/mol  
99+
24th Energy Level
297.30 kJ/mol  
99+
577.50 kJ/mol  
99+
25th Energy Level
2,970.00 kJ/mol  
2
577.50 kJ/mol  
99+
26th Energy Level
2,970.00 kJ/mol  
2
577.50 kJ/mol  
99+
27th Energy Level
297.30 kJ/mol  
99+
577.50 kJ/mol  
99+
28th Energy Level
297.30 kJ/mol  
99+
577.50 kJ/mol  
99+
29th Energy Level
2,970.00 kJ/mol  
2
577.50 kJ/mol  
99+
30th Energy Level
2,970.00 kJ/mol  
2
577.50 kJ/mol  
99+
Electrochemical Equivalent
0.17 g/amp-hr  
99+
0.34 g/amp-hr  
99+
Electron Work Function
4.98 eV  
10
4.28 eV  
26
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes  
Chemical Stability, Ionization, Radioactive Isotopes  
Atomic
Atomic Number
4  
99+
13  
99+
Electron Configuration
[He] 2s2  
[Ne] 3s2 3p1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100  
FCC-Crystal-Structure-of-Aluminium.jpg#100  
Atom
  
  
Number of Protons
4  
99+
13  
99+
Number of Neutrons
5  
99+
14  
99+
Number of Electrons
4  
99+
13  
99+
Radius of an Atom
  
  
Atomic Radius
112.00 pm  
99+
143.00 pm  
39
Covalent Radius
96.00 pm  
99+
121.00 pm  
99+
Van der Waals Radius
153.00 pm  
99+
184.00 pm  
99+
Atomic Weight
9.01 amu  
99+
26.98 amu  
99+
Atomic Volume
5.00 cm3/mol  
99+
10.00 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Lithium
  
Magnesium
  
Next Element
Sodium
  
Potassium
  
Valence Electron Potential
82.00 (-eV)  
15
80.70 (-eV)  
17
Lattice Constant
228.58 pm  
99+
404.95 pm  
25
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
99+
1.58  
34
Mechanical
Density
  
  
Density At Room Temperature
1.85 g/cm3  
99+
2.70 g/cm3  
99+
Density When Liquid (at m.p.)
1.69 g/cm3  
99+
2.38 g/cm3  
99+
Tensile Strength
287.00 MPa  
16
40.00 MPa  
99+
Viscosity
0.00  
17
0.00  
23
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
20
0.00 (Pa)  
19
Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
37
Elasticity properties
  
  
Shear Modulus
132.00 GPa  
7
26.00 GPa  
36
Bulk Modulus
130.00 GPa  
13
76.00 GPa  
19
Young's Modulus
287.00 GPa  
7
70.00 GPa  
30
Poisson Ratio
0.03  
36
0.35  
9
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
1.85  
99+
2.72  
99+
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Permeability
0.00 H/m  
12
0.00 H/m  
18
Susceptibility
0.00  
11
0.00  
11
Electrical Properties
  
  
Electrical Property
Semiconductor  
Conductor  
Resistivity
36.00 nΩ·m  
99+
28.20 nΩ·m  
99+
Electrical Conductivity
0.31 106/cm Ω  
5
0.38 106/cm Ω  
4
Electron Affinity
0.00 kJ/mol  
99+
42.50 kJ/mol  
31
Thermal
Specific Heat
1.82 J/(kg K)  
2
0.90 J/(kg K)  
5
Molar Heat Capacity
16.44 J/mol·K  
99+
24.20 J/mol·K  
99+
Thermal Conductivity
200.00 W/m·K  
6
237.00 W/m·K  
4
Critical Temperature
1,551.00 K  
39
933.00 K  
99+
Thermal Expansion
11.30 µm/(m·K)  
99+
23.10 µm/(m·K)  
18
Enthalpy
  
  
Enthalpy of Vaporization
294.70 kJ/mol  
99+
293.70 kJ/mol  
99+
Enthalpy of Fusion
11.72 kJ/mol  
36
10.67 kJ/mol  
99+
Enthalpy of Atomization
326.40 kJ/mol  
40
322.20 kJ/mol  
99+
Standard Molar Entropy
9.50 J/mol.K  
99+
28.30 J/mol.K  
99+
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