On this page I'll provide comprehensive data for Manganese. I hope you profit from it.
Manganese Overview
Name Origin
Latin: magnes (magnet); Italian: manganese.
Symbol
Mn (Manganese)Description
Hard, brittle, gray-white metal with a pinkish tinge. Rusts like iron in moist air.
Discovery
Discovered By: Johann Gahn
Year: 1774
Location: Sweden
Sources
Most abundant ores are pyrolusite (MnO2), psilomelane [(Ba,H2O)2Mn5O10] and rhodochrosite (MnCO3). Pure metal produced by mixing MnO2 with powered Al and ignited in a furnace.
Uses
Used in steel, batteries and ceramics. The steel in railroad tracks can contain as much as 1.2% manganese. It is crucial to the effectiveness of vitamin B1.
State at 20 °C
Solid
Group
Group Name: Transition MetalÂ
Group in periodic table: 7b
Period in periodic table:Â 4
Atomic Number
25Learn more about the atomic number.
Atomic Mass
54,93805
Learn more about the atomic mass.
Stable Isotopes
Mn55 percent abundance: 100%
Learn more about stable isotopes.
Radioactive Isotopes
Mn51-54, Mn56-57
Learn more about radioactive isotopes.
Atomic Structure
Crystalline Structure
Cubic: Body centered
Learn more about crystalline structure
Shells
Electrons per energy level: 2,8,13,2
Learn more about electron shells
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4 s2 3 d5
Learn more about electron configuration.
Abbreviated Configuration
[Ar] 3d5 4s2
Learn more about abbreviated electron configuration.
Valence Electrons
1,2,3,4,6,7
Learn more about valence electrons
Atom Size
Atomic Radius
1.79 Ã…
Learn more about atomic radius.
Covalent Radius
1.17 Ã…
Learn more about covalent radius.
Ionic Radius
.67 (+2) Ã…
Learn more about ionic radius.
Molar Volume
07.39 cm³/mol
Learn more about molar volume.
Chemical Properties
Common Oxidation States
First Ionization Energy
First Ionization Potential
Second Ionization Potential
Third Ionization Potential
Physical Properties
Density
Electrical Conductivity
Thermal Conductivity
Elastic Modulus
Coefficient of Thermal Expansion
Learn more about coefficient of thermal expansion.
Heat Properties
Other heat related physical properties:
Melting Point
Boiling Point
Specific Heat
0.48 J/gK
Learn more about specific heat.
Learn more about specific heat.
Heat of Fusion
12.050 kJ/mol
Learn more about heat of fusion.
Heat of Vaporization
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Along with basic element information, it also comes with color coded info about: State (Gas, Liquid or Solid at room temperature), Groups/series details and much more...
How about an incentive to share this post? (You will help other colleagues find this blog)
Download and enjoy this complete and colored periodic table for you to edit and enjoy. It's in an editable excel format or .ods (open).
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