Home
Compare Metals


Osmium Moscovium Comparison


Moscovium Osmium comparison


Periodic Table

Symbol
Os   
Mc   

Group Number
8   
10
15   
3

Period Number
6   
7   

Block
d block   
p block   

Element Family
Transition Metal   
Probably Post-​Transition   

CAS Number
7440042   
99+
54085642   
4

Space Group Name
P63/mmc   
Not Available   

Space Group Number
194.00   
5
Not Available   

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.
  
Not Available   

Sources
Found As a By-product, Found in Minerals, Mining   
Synthetically Produced   

History
  
  

Who Discovered
Smithson Tennant   
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory   

Discovery
In 1803   
In 2003   

Abundance
  
  

Abundance In Universe
3 * 10-7 %   
21
Not Available   

Abundance In Sun
~0.0000002 %   
25
~-9999 %   

Abundance In Meteorites
0.00 %   
28
Not Available   

Abundance In Earth's Crust
0.00 %   
99+
Not Available   

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.
  
  • Currently known uses of Ununpentium metal are limited to research purpose only.
  

Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Research Purposes   

Biological Properties
  
  

Toxicity
Highly Toxic   
Unknown   

Present in Human Body
No   
No   

Physical Properties

Melting Point
3,045.00 °C   
3
400.00 °C   
99+

Boiling Point
5,027.00 °C   
6
1,100.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Bluish-Gray   
Unknown   

Luster
Metallic   
Unknown Luster   

Hardness
  
  

Mohs Hardness
7.00   
3
Not Available   

Brinell Hardness
3,490.00 MPa   
1
Not Available   

Speed of Sound
4,940.00 m/s   
11
Not Available   

Optical Properties
  
  

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   
Mc   

Isotopes
  
  

Known Isotopes
35   
4
5   
32

Electronegativity
  
  

Pauling Electronegativity
2.20   
4
Not Available   

Allred Rochow Electronegativity
1.52   
12
Not Available   

Allen Electronegativity
1.65   
19
Not Available   

Electropositivity
  
  

Pauling Electropositivity
1.80   
99+
Not Available   

Ionization Energies
  
  

1st Energy Level
840.00 kJ/mol   
12
538.40 kJ/mol   
99+

2nd Energy Level
1,309.80 kJ/mol   
99+
1,756.00 kJ/mol   
24

3rd Energy Level
1,600.00 kJ/mol   
99+
2,653.30 kJ/mol   
40

4th Energy Level
Not Available   
4,679.50 kJ/mol   
24

5th Energy Level
Not Available   
5,721.60 kJ/mol   
27

Electrochemical Equivalent
1.77 g/amp-hr   
38
Not Available   

Electron Work Function
4.83 eV   
8
Not Available   

Other Chemical Properties
Chemical Stability, Ionization, Solubility   
Chemical Stability, Ionization   

Atomic Properties

Atomic Number
76   
40
115   
3

Electron Configuration
[Xe] 4f14 5d6 6s2   
[Rn] 5f14 6d10 7s2 7p3   

Crystal Structure
Hexagonal Close Packed (HCP)   
Not Known   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
Unknown-Crystal-Structure-of-Ununpentium.jpg#100   

Atom
  
  

Number of Protons
76   
39
115   
3

Number of Neutrons
114   
25
159   
5

Number of Electrons
76   
39
115   
3

Radius of an Atom
  
  

Atomic Radius
133.80 pm   
99+
Not Available   

Van der Waals Radius
216.00 pm   
24
Not Available   

Atomic Weight
190.23 amu   
35
289.00 amu   
3

Atomic Volume
8.49 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Rhenium
  
Flerovium
  

Next Element
Iridium
  

Valence Electron Potential
91.40 (-eV)   
12
Not Available   

Lattice Constant
273.44 pm   
99+
Not Available   

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

Lattice C/A Ratio
1.58   
14
Not Available   

Mechanical Properties

Density
  
  

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

Density When Liquid (at m.p.)
20.00 g/cm3   
1
Not Available   

Tensile Strength
1,000.00 MPa   
4
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 2000 K
0.00 (Pa)   
28
Not Available   

Elasticity properties
  
  

Shear Modulus
222.00 GPa   
1
Not Available   

Bulk Modulus
462.00 GPa   
1
Not Available   

Poisson Ratio
0.25   
24
Not Available   

Other Mechanical Properties
Ductile   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
22.57   
2
Not Available   

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
81.20 nΩ·m   
35
Not Available   

Electrical Conductivity
0.11 106/cm Ω   
18
Not Available   

Electron Affinity
106.10 kJ/mol   
9
Not Available   

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
Not Available   

Molar Heat Capacity
24.70 J/mol·K   
99+
Not Available   

Thermal Conductivity
87.60 W/m·K   
19
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
5.10 µm/(m·K)   
99+
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
627.60 kJ/mol   
7
Not Available   

Enthalpy of Fusion
29.30 kJ/mol   
4
Not Available   

Enthalpy of Atomization
669.00 kJ/mol   
6
Not Available   

Standard Molar Entropy
32.60 J/mol.K   
99+
Not Available   

Summary >>
<< Thermal

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals