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The Element Manganese


"The Atom"

What is Manganese as on the Periodic Table? Definition of the Manganese Element
A gray-white or silvery brittle metallic element, occurring in several allotropic forms, found worldwide, especially in the ores pyrolusite and rhodochrosite and in nodules on the ocean floor.

Manganese is a hard metal and is very brittle. It is hard to melt, but easily oxidized. It is alloyed with steel to increase strength, hardness, wear resistance, and other properties and with other metals to form highly ferromagnetic materials.

Manganese is reactive when pure, and as a powder it will burn in Oxygen, it reacts with water (it rusts like Iron) and dissolves in dilute acids. The Atomic Number of this element is 25 and the Element Symbol is Mn.

The Properties of the Manganese Element
Symbol of Element : Mn
Atomic Number : 25 
Atomic Mass: 54.93805 amu
Melting Point: 1245.0 C - 1518.15 K
Boiling Point: 1962.0 C - 2235.15 K
Number of Protons/Electrons: 25
Number of Neutrons : 30
Crystal Structure: Cubic
Density @ 293 K: 7.43 g/cm3
Color : gray-white or silvery

What is Manganese? Origin / Meaning of the name Manganese
The Name Originates from the Latin word mangnes meaning magnet because pyrolusite (Mn02) has magnetic properties.

What is Manganese? Periodic Table Group and Classification of the Manganese Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Manganese is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table. Elements classified as Transition Metals are generally described as ductile, malleable, and able to conduct electricity and heat. Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals.

Facts about the History and the Discovery of the Manganese Element
The Discoverer of the Manganese element was Johann Gahn in 1774. Johann Gahn isolated manganese by reducing its dioxide with Carbon.

What is Manganese? Occurrence of the Manganese Element
Occurrence. Manganese is found in nature chiefly as the dioxide MnO2, called pyrolusite. In smaller amounts it occurs as the oxides Mn2O3 and Mn3O4, and as the carbonate MnCO3. Some iron ores also contain manganese.
Obtained from pyrolusite, psilomelane, rhodochrosite

Abundances of the element in different environments
% in Universe 0.0008%
% in Sun 0.001%
% in Meteorites 0.27%
% in Earth's Crust 0.11%
% in Oceans 210-7%
% in Humans 0.00002%

Medical Uses of Manganese - Health and Treatments
Interesting information on the Medical Uses of Manganese, Health and Treatments. Manganese has been used to treat painful menstruation and osteoporosis and as a dietary supplement to alleviate deficiencies associated with seizure disorders and diabetes.

Associated Uses of Manganese
Glass making

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