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Osmium vs Aluminium

Osmium
Aluminium
Aluminium vs Osmium


Periodic Table
Symbol
Os   
Al   
Group Number
8   
10
13   
5
Period Number
6   
3   
Block
d block   
p block   
Element Family
Transition Metal   
Post-​Transition   
CAS Number
7440042   
99+
7429905   
99+
Space Group Name
P63/mmc   
Fm_ 3m   
Space Group Number
194.00   
5
225.00   
2
Facts
Interesting Facts
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  
  • 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
Found As a By-product, Found in Minerals, Mining   
By Electrolysis Process, Earth's crust, Mining   
History
  
  
Who Discovered
Smithson Tennant   
Hans Christian Oersted   
Discovery
In 1803   
In 1825   
Abundance
  
  
Abundance In Universe
3 * 10-7 %   
21
5 * 10-3 %   
5
Abundance In Sun
~0.0000002 %   
25
~0.006 %   
5
Abundance In Meteorites
0.00 %   
28
0.91 %   
5
Abundance In Earth's Crust
0.00 %   
99+
8.10 %   
1
Abundance In Oceans
Not Available   
0.00 %   
6
Abundance In Humans
Not Available   
0.00 %   
10
Uses
Uses & Benefits
  • Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
  • It is also used as industrial catalyst to speed up the chemical reaction.
  
  • 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, Automobile Industry, Electrical Industry, Electronic Industry   
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Medical Uses
NA   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Other Uses
Alloys   
Alloys, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Highly Toxic   
Non Toxic   
Present in Human Body
No   
Yes   
In Blood
Not Available   
0.39 Blood/mg dm-3   
9
In Bone
Not Available   
27.00 p.p.m.   
11
Physical Properties
Melting Point
3,045.00 °C   
3
660.37 °C   
99+
Boiling Point
5,027.00 °C   
6
2,467.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Bluish-Gray   
Silvery Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
7.00   
3
2.75   
13
Brinell Hardness
3,490.00 MPa   
1
160.00 MPa   
99+
Vickers Hardness
Not Available   
160.00 MPa   
35
Speed of Sound
4,940.00 m/s   
11
5,000.00 m/s   
10
Optical Properties
  
  
Reflectivity
Not Available   
71.00 %   
10
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Os   
Al   
Isotopes
  
  
Known Isotopes
35   
4
11   
27
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.61   
22
Sanderson Electronegativity
Not Available   
1.71   
13
Allred Rochow Electronegativity
1.52   
12
1.47   
14
Mulliken-Jaffe Electronegativity
Not Available   
1.83   
8
Allen Electronegativity
1.65   
19
1.61   
20
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.39   
32
Ionization Energies
  
  
1st Energy Level
840.00 kJ/mol   
12
577.50 kJ/mol   
99+
2nd Energy Level
1,309.80 kJ/mol   
99+
1,816.70 kJ/mol   
19
3rd Energy Level
1,600.00 kJ/mol   
99+
2,744.80 kJ/mol   
38
4th Energy Level
Not Available   
11,577.00 kJ/mol   
3
5th Energy Level
Not Available   
14,842.00 kJ/mol   
2
6th Energy Level
Not Available   
18,379.00 kJ/mol   
2
7th Energy level
Not Available   
23,326.00 kJ/mol   
2
8th Energy Level
Not Available   
27,465.00 kJ/mol   
2
9th Energy Level
Not Available   
31,853.00 kJ/mol   
2
10th Energy Level
Not Available   
38,473.00 kJ/mol   
4
11th Energy Level
Not Available   
42,647.00 kJ/mol   
5
Electrochemical Equivalent
1.77 g/amp-hr   
38
0.34 g/amp-hr   
99+
Electron Work Function
4.83 eV   
8
4.28 eV   
19
Other Chemical Properties
Chemical Stability, Ionization, Solubility   
Chemical Stability, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
76   
40
13   
99+
Electron Configuration
[Xe] 4f14 5d6 6s2   
[Ne] 3s2 3p1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Aluminium.jpg#100   
Atom
  
  
Number of Protons
76   
39
13   
99+
Number of Neutrons
114   
25
14   
99+
Number of Electrons
76   
39
13   
99+
Radius of an Atom
  
  
Atomic Radius
133.80 pm   
99+
143.00 pm   
37
Covalent Radius
Not Available   
121.00 pm   
99+
Van der Waals Radius
216.00 pm   
24
184.00 pm   
34
Atomic Weight
190.23 amu   
35
26.98 amu   
99+
Atomic Volume
8.49 cm3/mol   
99+
10.00 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Rhenium
  
Magnesium
  
Next Element
Iridium
  
Potassium
  
Valence Electron Potential
91.40 (-eV)   
12
80.70 (-eV)   
17
Lattice Constant
273.44 pm   
99+
404.95 pm   
22
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.58   
14
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
22.59 g/cm3   
9
2.70 g/cm3   
99+
Density When Liquid (at m.p.)
20.00 g/cm3   
1
2.38 g/cm3   
99+
Tensile Strength
1,000.00 MPa   
4
40.00 MPa   
19
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
18
Vapor Pressure at 2000 K
0.00 (Pa)   
28
Not Available   
Elasticity properties
  
  
Shear Modulus
222.00 GPa   
1
26.00 GPa   
29
Bulk Modulus
462.00 GPa   
1
76.00 GPa   
18
Young's Modulus
Not Available   
70.00 GPa   
28
Poisson Ratio
0.25   
24
0.35   
9
Other Mechanical Properties
Ductile   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
22.57   
2
2.72   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Permeability
Not Available   
0.00 H/m   
4
Susceptibility
Not Available   
0.00   
3
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
81.20 nΩ·m   
35
28.20 nΩ·m   
99+
Electrical Conductivity
0.11 106/cm Ω   
18
0.38 106/cm Ω   
4
Electron Affinity
106.10 kJ/mol   
9
42.50 kJ/mol   
26
Thermal Properties
Specific Heat
0.13 J/(kg K)   
39
0.90 J/(kg K)   
5
Molar Heat Capacity
24.70 J/mol·K   
99+
24.20 J/mol·K   
99+
Thermal Conductivity
87.60 W/m·K   
19
237.00 W/m·K   
4
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
5.10 µm/(m·K)   
99+
23.10 µm/(m·K)   
17
Enthalpy
  
  
Enthalpy of Vaporization
627.60 kJ/mol   
7
293.70 kJ/mol   
31
Enthalpy of Fusion
29.30 kJ/mol   
4
10.67 kJ/mol   
35
Enthalpy of Atomization
669.00 kJ/mol   
6
322.20 kJ/mol   
31
Standard Molar Entropy
32.60 J/mol.K   
99+
28.30 J/mol.K   
99+
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