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Aluminium Strontium Comparison

Aluminium
Strontium
Strontium Aluminium comparison


Periodic Table
Symbol
Al  
Sr  
Group Number
13  
5
2  
16
Period Number
3  
5  
Block
p block  
s block  
Element Family
Post-​Transition  
Alkaline Earth  
CAS Number
7429905  
99+
7440246  
99+
Space Group Name
Fm_ 3m  
Fm_ 3m  
Space Group Number
225.00  
3
225.00  
3
Facts
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.
  
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
Sources
By Electrolysis Process, Earth's crust, Mining  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Hans Christian Oersted  
William Cruickshank  
Discovery
In 1825  
In 1787  
Abundance
  
  
Abundance In Universe
0.01 %  
6
0.00 %  
15
Abundance In Sun
0.01 %  
5
0.00 %  
15
Abundance In Meteorites
0.91 %  
5
0.00 %  
15
Abundance In Earth's Crust
8.10 %  
1
0.04 %  
10
Abundance In Oceans
0.00 %  
6
0.00 %  
4
Abundance In Humans
0.00 %  
11
0.00 %  
8
Uses
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.
  
  • Strontium metal is used to producing ferrite magnets as well as refining zinc.
  • By-product of nuclear reactors called Strontium-90 is a radioactive isotope; it is absorbed by tissues and destroys bone marrow and cancer growth.
  
Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Ammunition Industry, Chemical Industry  
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
-  
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
0.03 Blood/mg dm-3  
19
In Bone
27.00 p.p.m.  
11
140.00 p.p.m.  
7
Physical
Melting Point
660.37 °C  
99+
769.00 °C  
99+
Boiling Point
2,467.00 °C  
99+
1,384.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
2.75  
14
1.50  
19
Brinell Hardness
160.00 MPa  
99+
110.00 MPa  
99+
Vickers Hardness
160.00 MPa  
99+
15.00 MPa  
99+
Speed of Sound
5,000.00 m/s  
14
4,170.00 m/s  
23
Optical Properties
  
  
Refractive Index
1.61  
31
1.43  
39
Reflectivity
71.00 %  
12
65.00 %  
18
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Al  
Sr  
Isotopes
  
  
Known Isotopes
11  
27
27  
12
Electronegativity
  
  
Pauling Electronegativity
1.61  
23
0.95  
99+
Sanderson Electronegativity
1.71  
16
0.72  
99+
Allred Rochow Electronegativity
1.47  
15
0.99  
38
Mulliken-Jaffe Electronegativity
1.83  
16
1.00  
99+
Allen Electronegativity
1.61  
23
0.96  
99+
Electropositivity
  
  
Pauling Electropositivity
2.39  
32
3.05  
7
Ionization Energies
  
  
1st Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
2nd Energy Level
1,816.70 kJ/mol  
20
1,064.20 kJ/mol  
99+
3rd Energy Level
2,744.80 kJ/mol  
39
4,138.00 kJ/mol  
10
4th Energy Level
11,577.00 kJ/mol  
3
5,500.00 kJ/mol  
22
5th Energy Level
14,842.00 kJ/mol  
2
6,910.00 kJ/mol  
30
6th Energy Level
18,379.00 kJ/mol  
2
8,760.00 kJ/mol  
26
7th Energy level
23,326.00 kJ/mol  
2
10,230.00 kJ/mol  
19
8th Energy Level
27,465.00 kJ/mol  
2
11,800.00 kJ/mol  
19
9th Energy Level
31,853.00 kJ/mol  
2
15,600.00 kJ/mol  
17
10th Energy Level
38,473.00 kJ/mol  
4
17,100.00 kJ/mol  
19
11th Energy Level
42,647.00 kJ/mol  
5
31,270.00 kJ/mol  
6
12th Energy Level
5,770.00 kJ/mol  
99+
5,490.00 kJ/mol  
99+
13th Energy Level
5,770.00 kJ/mol  
99+
5,490.00 kJ/mol  
99+
14th Energy Level
577.50 kJ/mol  
99+
5,490.00 kJ/mol  
99+
15th Energy Level
57,700.00 kJ/mol  
99+
54,900.00 kJ/mol  
99+
16th Energy Level
577.50 kJ/mol  
99+
54,900.00 kJ/mol  
99+
17th Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
18th Energy Level
5,775.00 kJ/mol  
99+
5,490.00 kJ/mol  
99+
19th Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
20th Energy Level
577.00 kJ/mol  
99+
549.00 kJ/mol  
99+
21st Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
22nd Energy Level
577.00 kJ/mol  
99+
549.00 kJ/mol  
99+
23rd Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
24th Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
25th Energy Level
577.50 kJ/mol  
99+
549.00 kJ/mol  
99+
26th Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
27th Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
28th Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
29th Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
30th Energy Level
577.50 kJ/mol  
99+
549.50 kJ/mol  
99+
Electrochemical Equivalent
0.34 g/amp-hr  
99+
1.64 g/amp-hr  
99+
Electron Work Function
4.28 eV  
26
2.59 eV  
99+
Other Chemical Properties
Chemical Stability, Ionization, Radioactive Isotopes  
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
13  
99+
38  
99+
Electron Configuration
[Ne] 3s2 3p1  
[Kr] 5s2  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Aluminium.jpg#100  
FCC-Crystal-Structure-of-Strontium.jpg#100  
Atom
  
  
Number of Protons
13  
99+
38  
99+
Number of Neutrons
14  
99+
50  
99+
Number of Electrons
13  
99+
38  
99+
Radius of an Atom
  
  
Atomic Radius
143.00 pm  
39
215.00 pm  
6
Covalent Radius
121.00 pm  
99+
195.00 pm  
15
Van der Waals Radius
184.00 pm  
99+
249.00 pm  
11
Atomic Weight
26.98 amu  
99+
87.62 amu  
99+
Atomic Volume
10.00 cm3/mol  
99+
33.70 cm3/mol  
9
Adjacent Atomic Numbers
  
  
Previous Element
Magnesium
  
Rubidium
  
Next Element
Potassium
  
Yttrium
  
Valence Electron Potential
80.70 (-eV)  
17
25.70 (-eV)  
99+
Lattice Constant
404.95 pm  
25
608.49 pm  
6
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
34
1.57  
40
Mechanical
Density
  
  
Density At Room Temperature
2.70 g/cm3  
99+
2.64 g/cm3  
99+
Density When Liquid (at m.p.)
2.38 g/cm3  
99+
2.38 g/cm3  
99+
Tensile Strength
40.00 MPa  
99+
170.00 MPa  
21
Viscosity
0.00  
23
0.00  
2
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
19
121.00 (Pa)  
1
Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
38
Elasticity properties
  
  
Shear Modulus
26.00 GPa  
36
6.03 GPa  
99+
Bulk Modulus
76.00 GPa  
19
11.00 GPa  
99+
Young's Modulus
70.00 GPa  
30
15.70 GPa  
99+
Poisson Ratio
0.35  
9
0.28  
17
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
2.72  
99+
2.64  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
18
0.00 H/m  
17
Susceptibility
0.00  
11
0.00  
35
Electrical Properties
  
  
Electrical Property
Conductor  
-  
Resistivity
28.20 nΩ·m  
99+
132.00 nΩ·m  
24
Electrical Conductivity
0.38 106/cm Ω  
4
0.08 106/cm Ω  
31
Electron Affinity
42.50 kJ/mol  
31
5.03 kJ/mol  
99+
Thermal
Specific Heat
0.90 J/(kg K)  
5
0.30 J/(kg K)  
18
Molar Heat Capacity
24.20 J/mol·K  
99+
26.40 J/mol·K  
36
Thermal Conductivity
237.00 W/m·K  
4
35.40 W/m·K  
38
Critical Temperature
933.00 K  
99+
1,050.00 K  
99+
Thermal Expansion
23.10 µm/(m·K)  
18
22.50 µm/(m·K)  
19
Enthalpy
  
  
Enthalpy of Vaporization
293.70 kJ/mol  
99+
150.00 kJ/mol  
99+
Enthalpy of Fusion
10.67 kJ/mol  
99+
9.16 kJ/mol  
99+
Enthalpy of Atomization
322.20 kJ/mol  
99+
163.20 kJ/mol  
99+
Standard Molar Entropy
28.30 J/mol.K  
99+
55.00 J/mol.K  
34
Summary >>
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