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Properties of Osmium and Iron


Properties of Iron & Osmium


Physical Properties

Melting Point
3,045.00 °C   
3
1,535.00 °C   
25

Boiling Point
5,027.00 °C   
6
2,750.00 °C   
37

Hardness
  
  

Mohs Hardness
7.00   
3
4.00   
10

Brinell Hardness
3,490.00 MPa   
1
200.00 MPa   
40

Vickers Hardness
Not Available   
608.00 MPa   
18

Optical Properties
  
  

Refractive Index
Not Available   
Not Available   

Reflectivity
Not Available   
65.00 %   
12

Speed of Sound
4,940.00 m/s   
11
5,120.00 m/s   
8

Allotropes
No   
Yes   

α Allotropes
Not Available   
?
It forms below 770 °C (the Curie point, TC); Then the Iron becomes magnetic in its alpha form; BCC crystal structureFerrite (Alpha Iron)
  

β Allotropes
Not Available   
?
It forms below 912 °C; BCC crystal structureBeta Iron
  

γ Allotropes
Not Available   
?
It forms below 1,394 °C; FCC crystal structureGamma Iron
  

Chemical Properties

Chemical Formula
Os   
Fe   

Isotopes
  
  

Known Isotopes
35   
4
26   
13

Electronegativity
  
  

Pauling Electronegativity
2.20   
4
1.83   
14

Sanderson Electronegativity
Not Available   
2.20   
7

Allred Rochow Electronegativity
1.52   
12
1.64   
8

Mulliken-Jaffe Electronegativity
Not Available   
Not Available   

Allen Electronegativity
1.65   
19
1.80   
12

Electropositivity
  
  

Pauling Electropositivity
1.80   
99+
2.17   
40

Ionization Energies
  
  

1st Energy Level
840.00 kJ/mol   
12
762.50 kJ/mol   
17

2nd Energy Level
1,309.80 kJ/mol   
99+
1,561.90 kJ/mol   
36

3rd Energy Level
1,600.00 kJ/mol   
99+
2,957.00 kJ/mol   
29

Electrochemical Equivalent
1.77 g/amp-hr   
38
0.69 g/amp-hr   
99+

Electron Work Function
4.83 eV   
8
4.70 eV   
10

Other Chemical Properties
?
Stable metals are non radioactive metals and have zero valence electrons in the outer shell.Chemical Stability, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility
  
?
Corrosion is a process which converts refined metals to their more stable forms, for example, its oxide and hydroxide. This process of metals getting corroded is a gradual destruction of metals by chemical reactions.Corrosion, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility
  

Mechanical Properties

Density
  
  

Density At Room Temperature
22.59 g/cm3   
9
7.87 g/cm3   
99+

Density When Liquid (at m.p.)
20.00 g/cm3   
1
6.98 g/cm3   
35

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
28

Vapor Pressure at 2000 K
0.00 (Pa)   
28
36.80 (Pa)   
5

Tensile Strength
1,000.00 MPa   
4
11,000.00 MPa   
1

Viscosity
Not Available   
Not Available   

Elasticity properties
  
  

Shear Modulus
222.00 GPa   
1
82.00 GPa   
11

Bulk Modulus
462.00 GPa   
1
170.00 GPa   
10

Young's Modulus
Not Available   
211.00 GPa   
9

Poisson Ratio
0.25   
24
0.29   
15

Other Mechanical Properties
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile
  
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable, 
?
Weldability of metals defines their ability to be welded.This property of metals also known as joinability.Weldable
  

Periodic Table

Symbol
Os   
Fe   

Group Number
8   
10
8   
10

Period Number
6   
4   

Block
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block
  
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block
  

Element Family
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal
  
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal
  

Atomic Properties

Atomic Number
76   
40
26   
99+

Atomic Weight
190.23 amu   
35
55.85 amu   
99+

Atomic Volume
8.49 cm3/mol   
99+
7.10 cm3/mol   
99+

Electron Configuration
[Xe] 4f14 5d6 6s2   
[Ar] 3d6 4s2   

Valence Electron Potential
91.40 (-eV)   
12
67.00 (-eV)   
20

Atom
  
  

Number of Protons
76   
39
26   
99+

Number of Neutrons
114   
25
30   
99+

Number of Electrons
76   
39
26   
99+

Crystal Structure
?
The hexagonal crystal system consists of the 7 point groups such that all their space groups have the hexagonal lattice as underlying lattice. The hexagonal crystal family consists of the 12 point groups such that at least one of their space groups has theHexagonal Close Packed (HCP)
  
?
BCC is a basis type of cubic crystal structure. In crystallography, the cubic crystals structure is a crystal system where the unit cell has a cube shaped structure. This is one of the simplest crystal structure found in crystals of metal.Body Centered Cubic (BCC)
  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Radius of an Atom
  
  

Atomic Radius
133.80 pm   
99+
126.00 pm   
99+

Covalent Radius
Not Available   
132.00 pm   
99+

Van der Waals Radius
216.00 pm   
24
200.00 pm   
28

Lattice Constant
273.44 pm   
99+
286.65 pm   
99+

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   

Lattice C/A Ratio
1.58   
14
Not Available   

Adjacent Atomic Numbers
  
  

Next Element
Iridium
  
Cobalt
  

Previous Element
Rhenium
  
Manganese
  

Magnetic Properties

Electrical Properties
  
  

Resistivity
81.20 nΩ·m   
35
96.10 nΩ·m   
32

Electrical Conductivity
0.11 106/cm Ω   
18
0.10 106/cm Ω   
20

Electron Affinity
106.10 kJ/mol   
9
15.70 kJ/mol   
34

Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
  
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
  

Magnetic Characteristics
  
  

Specific Gravity
22.57   
2
7.20   
99+

Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic
  
Ferromagnetic   

Permeability
Not Available   
6.3 * 10-3 H/m   
1

Susceptibility
Not Available   
2,00,000.00   
1

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
0.44 J/(kg K)   
13

Thermal Conductivity
87.60 W/m·K   
19
80.40 W/m·K   
22

Critical Temperature
Not Available   
Not Available   

Molar Heat Capacity
24.70 J/mol·K   
99+
25.10 J/mol·K   
99+

Thermal Expansion
5.10 µm/(m·K)   
99+
11.80 µm/(m·K)   
33

Standard Molar Entropy
32.60 J/mol.K   
99+
27.30 J/mol.K   
99+

Enthalpy
  
  

Enthalpy of Vaporization
627.60 kJ/mol   
7
351.00 kJ/mol   
23

Enthalpy of Fusion
29.30 kJ/mol   
4
14.90 kJ/mol   
22

Enthalpy of Atomization
669.00 kJ/mol   
6
414.20 kJ/mol   
19

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