Symbol
Al
  
Ca
  
Period Number
3
  
4
  
Block
p block
  
s block
  
Element Family
Post-Transition
  
Alkaline Earth
  
Space Group Name
Fm_ 3m
  
Fm_ 3m
  
Interesting Facts
- 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.
  
- Calcium ranks 5th rank in the list of earth’s abundance Percentage.
- It is found in the compound state.
- Gypsum or calcium sulfate is used as plaster and plaster of paris.
  
Sources
By Electrolysis Process, Earth's crust, Mining
  
Earth's crust, Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Hans Christian Oersted
  
Humphry Davy
  
Discovery
In 1825
  
In 1808
  
Abundance
  
  
Abundance In Earth's Crust
Uses & Benefits
- Aluminum is used in a various products; for example, cans, foils, kitchen utensils, window frames, beer kegs and aero plane parts, automobile parts, etc.
  
- It is used as a reducing agent while preparing metals like thorium and uranium. It is also used as an alloying agent for metals such as aluminum, copper & lead.
- Calcium carbonate or lime stone is used in cement.
  
Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
  
Chemical Industry
  
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
  
Dentistry, Pharmaceutical Industry
  
Other Uses
Alloys, Jewellery, Sculptures, Statues
  
Alloys
  
Biological Properties
  
  
Toxicity
Non Toxic
  
Non Toxic
  
Present in Human Body
Yes
  
Yes
  
In Blood
0.39 Blood/mg dm-3
  
9
60.50 Blood/mg dm-3
  
4
In Bone
27.00 p.p.m.
  
11
170,000.00 p.p.m.
  
1
Boiling Point
2,467.00 °C
  
99+
1,484.00 °C
  
99+
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery Gray
  
Gray
  
Luster
Metallic
  
NA
  
Hardness
  
  
Brinell Hardness
160.00 MPa
  
99+
170.00 MPa
  
99+
Vickers Hardness
Not Available
  
Speed of Sound
5,000.00 m/s
  
10
3,810.00 m/s
  
19
Optical Properties
  
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Al
  
Ca
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
577.50 kJ/mol
  
99+
589.80 kJ/mol
  
99+
2nd Energy Level
1,816.70 kJ/mol
  
19
1,145.40 kJ/mol
  
99+
3rd Energy Level
2,744.80 kJ/mol
  
38
4,912.40 kJ/mol
  
7
4th Energy Level
11,577.00 kJ/mol
  
3
6,491.00 kJ/mol
  
7
5th Energy Level
14,842.00 kJ/mol
  
2
8,153.00 kJ/mol
  
7
6th Energy Level
18,379.00 kJ/mol
  
2
10,496.00 kJ/mol
  
8
7th Energy level
23,326.00 kJ/mol
  
2
12,270.00 kJ/mol
  
12
8th Energy Level
27,465.00 kJ/mol
  
2
14,206.00 kJ/mol
  
15
9th Energy Level
31,853.00 kJ/mol
  
2
18,191.00 kJ/mol
  
12
10th Energy Level
38,473.00 kJ/mol
  
4
20,385.00 kJ/mol
  
16
11th Energy Level
42,647.00 kJ/mol
  
5
57,110.00 kJ/mol
  
3
12th Energy Level
Not Available
  
63,410.00 kJ/mol
  
3
13th Energy Level
Not Available
  
70,110.00 kJ/mol
  
3
14th Energy Level
Not Available
  
78,890.00 kJ/mol
  
4
15th Energy Level
Not Available
  
86,310.00 kJ/mol
  
5
16th Energy Level
Not Available
  
94,000.00 kJ/mol
  
6
17th Energy Level
Not Available
  
104,900.00 kJ/mol
  
7
18th Energy Level
Not Available
  
111,711.00 kJ/mol
  
8
Electrochemical Equivalent
0.34 g/amp-hr
  
99+
0.75 g/amp-hr
  
99+
Other Chemical Properties
Chemical Stability, Ionization, Radioactive Isotopes
  
Chemical Stability, Flammability, Ionization, Solubility
  
Electron Configuration
[Ne] 3s2 3p1
  
[Ar] 4s2
  
Crystal Structure
Face Centered Cubic (FCC)
  
Face Centered Cubic (FCC)
  
Crystal Lattice
FCC-Crystal-Structure-of-Aluminium.jpg#100
  
FCC-Crystal-Structure-of-Calcium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Volume
10.00 cm3/mol
  
99+
29.90 cm3/mol
  
7
Adjacent Atomic Numbers
  
  
Valence Electron Potential
80.70 (-eV)
  
17
29.00 (-eV)
  
99+
Lattice Angles
π/2, π/2, π/2
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
2.70 g/cm3
  
99+
1.55 g/cm3
  
99+
Density When Liquid (at m.p.)
2.38 g/cm3
  
99+
1.38 g/cm3
  
99+
Tensile Strength
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Elasticity properties
  
  
Other Mechanical Properties
Ductile, Malleable
  
NA
  
Magnetic Characteristics
  
  
Magnetic Ordering
Paramagnetic
  
Diamagnetic
  
Permeability
Not Available
  
Susceptibility
Not Available
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Conductor
  
Resistivity
28.20 nΩ·m
  
99+
33.60 nΩ·m
  
99+
Electrical Conductivity
0.38 106/cm Ω
  
4
0.30 106/cm Ω
  
6
Electron Affinity
42.50 kJ/mol
  
26
2.37 kJ/mol
  
39
Specific Heat
0.90 J/(kg K)
  
5
0.63 J/(kg K)
  
7
Molar Heat Capacity
24.20 J/mol·K
  
99+
25.93 J/mol·K
  
34
Thermal Conductivity
237.00 W/m·K
  
4
201.00 W/m·K
  
5
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
23.10 µm/(m·K)
  
17
22.30 µm/(m·K)
  
19
Enthalpy
  
  
Enthalpy of Vaporization
293.70 kJ/mol
  
31
150.00 kJ/mol
  
99+
Enthalpy of Fusion
10.67 kJ/mol
  
35
8.54 kJ/mol
  
99+
Enthalpy of Atomization
322.20 kJ/mol
  
31
184.00 kJ/mol
  
99+
Standard Molar Entropy
28.30 J/mol.K
  
99+
41.60 J/mol.K
  
36