Home
 Compare Metals

Manganese vs Osmium

Manganese
Osmium
Osmium vs Manganese


Periodic Table
Symbol
Mn  
Os  
Group Number
7  
11
8  
10
Period Number
4  
6  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7439965  
99+
7440042  
99+
Space Group Name
I_ 43m  
P63/mmc  
Space Group Number
217.00  
5
194.00  
7
Facts
Interesting Facts
  • Manganese is an essential trace element in all forms of life.
  • Manganese metal oxidizes very easily, but it does not fuse that easily.
  
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Found As a By-product, Found in Minerals, Mining  
History
  
  
Who Discovered
Johann Gottlieb Gahn  
Smithson Tennant  
Discovery
In 1774  
In 1803  
Abundance
  
  
Abundance In Universe
0.00 %  
9
0.00 %  
22
Abundance In Sun
0.00 %  
8
0.00 %  
25
Abundance In Meteorites
0.27 %  
8
0.00 %  
28
Abundance In Earth's Crust
0.11 %  
8
0.00 %  
99+
Abundance In Oceans
0.00 %  
13
0.00 %  
99+
Abundance In Humans
0.00 %  
15
0.00 %  
24
Uses
Uses & Benefits
  • This metal is very brittle hence it mostly not used as a pure metal, but its alloys are very useful
  • Its alloy Manganese steel is extremely strong and used in railway tracks, safes, prison bars and riffle barrels.
  
  • 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.
  
Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Toxic  
Highly Toxic  
Present in Human Body
Yes  
No  
In Blood
0.08 Blood/mg dm-3  
14
0.00 Blood/mg dm-3  
37
In Bone
100.00 p.p.m.  
8
0.00 p.p.m.  
99+
Physical
Melting Point
1,245.00 °C  
37
3,045.00 °C  
3
Boiling Point
1,962.00 °C  
99+
5,027.00 °C  
6
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silvery Bluish-Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
7.00  
3
Brinell Hardness
196.00 MPa  
99+
3,490.00 MPa  
1
Vickers Hardness
196.00 MPa  
99+
3,920.00 MPa  
1
Speed of Sound
5,150.00 m/s  
11
4,940.00 m/s  
15
Optical Properties
  
  
Refractive Index
2.00  
15
2.07  
12
Reflectivity
70.00 %  
13
80.00 %  
7
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Mn  
Os  
Isotopes
  
  
Known Isotopes
21  
18
35  
4
Electronegativity
  
  
Pauling Electronegativity
1.55  
26
2.20  
5
Sanderson Electronegativity
2.20  
8
2.20  
8
Allred Rochow Electronegativity
1.60  
10
1.52  
13
Mulliken-Jaffe Electronegativity
1.55  
23
2.20  
6
Allen Electronegativity
1.75  
18
1.65  
22
Electropositivity
  
  
Pauling Electropositivity
2.45  
29
1.80  
99+
Ionization Energies
  
  
1st Energy Level
717.30 kJ/mol  
30
840.00 kJ/mol  
12
2nd Energy Level
1,509.00 kJ/mol  
40
1,309.80 kJ/mol  
99+
3rd Energy Level
3,248.00 kJ/mol  
21
1,600.00 kJ/mol  
99+
4th Energy Level
4,940.00 kJ/mol  
30
840.00 kJ/mol  
99+
5th Energy Level
6,990.00 kJ/mol  
29
8,400.00 kJ/mol  
10
6th Energy Level
9,220.00 kJ/mol  
22
8,400.00 kJ/mol  
30
7th Energy level
11,500.00 kJ/mol  
16
8,400.00 kJ/mol  
25
8th Energy Level
18,770.00 kJ/mol  
5
8,400.00 kJ/mol  
25
9th Energy Level
21,400.00 kJ/mol  
6
5,280.00 kJ/mol  
99+
10th Energy Level
23,960.00 kJ/mol  
9
8,400.00 kJ/mol  
26
11th Energy Level
27,590.00 kJ/mol  
10
8,400.00 kJ/mol  
23
12th Energy Level
30,330.00 kJ/mol  
32
8,400.00 kJ/mol  
99+
13th Energy Level
33,150.00 kJ/mol  
11
8,400.00 kJ/mol  
18
14th Energy Level
38,880.00 kJ/mol  
10
840.00 kJ/mol  
99+
15th Energy Level
41,987.00 kJ/mol  
99+
84,000.00 kJ/mol  
12
16th Energy Level
109,480.00 kJ/mol  
1
840.00 kJ/mol  
99+
17th Energy Level
118,100.00 kJ/mol  
2
840.00 kJ/mol  
29
18th Energy Level
127,100.00 kJ/mol  
3
8,400.00 kJ/mol  
18
19th Energy Level
138,600.00 kJ/mol  
4
840.00 kJ/mol  
27
20th Energy Level
148,500.00 kJ/mol  
6
840.00 kJ/mol  
19
21st Energy Level
158,600.00 kJ/mol  
6
840.00 kJ/mol  
39
22nd Energy Level
172,500.00 kJ/mol  
5
840.00 kJ/mol  
15
23rd Energy Level
181,380.00 kJ/mol  
5
840.00 kJ/mol  
99+
24th Energy Level
650.90 kJ/mol  
34
840.00 kJ/mol  
11
25th Energy Level
717.30 kJ/mol  
24
840.00 kJ/mol  
9
26th Energy Level
650.90 kJ/mol  
35
840.00 kJ/mol  
9
27th Energy Level
650.90 kJ/mol  
36
713.30 kJ/mol  
24
28th Energy Level
650.90 kJ/mol  
99+
840.10 kJ/mol  
13
29th Energy Level
650.90 kJ/mol  
99+
840.00 kJ/mol  
13
30th Energy Level
650.90 kJ/mol  
38
840.00 kJ/mol  
9
Electrochemical Equivalent
0.29 g/amp-hr  
99+
1.77 g/amp-hr  
99+
Electron Work Function
4.10 eV  
32
4.83 eV  
13
Other Chemical Properties
Ionization, Radioactive Isotopes  
Chemical Stability, Ionization, Solubility  
Atomic
Atomic Number
25  
99+
76  
40
Electron Configuration
[Ar] 3d5 4s2  
[Xe] 4f14 5d6 6s2  
Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
25  
99+
76  
39
Number of Neutrons
30  
99+
114  
26
Number of Electrons
25  
99+
76  
39
Radius of an Atom
  
  
Atomic Radius
127.00 pm  
99+
133.80 pm  
99+
Covalent Radius
139.00 pm  
99+
128.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
216.00 pm  
30
Atomic Weight
54.94 amu  
99+
190.23 amu  
35
Atomic Volume
1.39 cm3/mol  
99+
8.49 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Chromium
  
Rhenium
  
Next Element
Iron
  
Iridium
  
Valence Electron Potential
220.00 (-eV)  
2
91.40 (-eV)  
12
Lattice Constant
891.25 pm  
1
273.44 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.55  
99+
1.58  
37
Mechanical
Density
  
  
Density At Room Temperature
7.21 g/cm3  
99+
22.59 g/cm3  
9
Density When Liquid (at m.p.)
5.95 g/cm3  
99+
20.00 g/cm3  
11
Tensile Strength
370.00 MPa  
11
1,000.00 MPa  
4
Viscosity
0.00  
2
0.00  
3
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
12
0.00 (Pa)  
16
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
39
Elasticity properties
  
  
Shear Modulus
40.00 GPa  
19
222.00 GPa  
1
Bulk Modulus
120.00 GPa  
14
462.00 GPa  
1
Young's Modulus
198.00 GPa  
13
528.00 GPa  
1
Poisson Ratio
0.30  
14
0.25  
24
Other Mechanical Properties
-  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
7.21  
99+
22.57  
11
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
7
0.00 H/m  
17
Susceptibility
0.00  
12
0.00  
17
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
1.44 nΩ·m  
99+
81.20 nΩ·m  
35
Electrical Conductivity
0.01 106/cm Ω  
99+
0.11 106/cm Ω  
21
Electron Affinity
0.00 kJ/mol  
99+
106.10 kJ/mol  
10
Thermal
Specific Heat
0.48 J/(kg K)  
11
0.13 J/(kg K)  
40
Molar Heat Capacity
26.32 J/mol·K  
37
24.70 J/mol·K  
99+
Thermal Conductivity
7.81 W/m·K  
99+
87.60 W/m·K  
19
Critical Temperature
1,519.00 K  
40
3,300.00 K  
3
Thermal Expansion
21.70 µm/(m·K)  
22
5.10 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
219.70 kJ/mol  
99+
627.60 kJ/mol  
8
Enthalpy of Fusion
14.64 kJ/mol  
25
29.30 kJ/mol  
4
Enthalpy of Atomization
280.30 kJ/mol  
99+
669.00 kJ/mol  
6
Standard Molar Entropy
32.00 J/mol.K  
99+
32.60 J/mol.K  
99+
Periodic Table >>
<< All

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!