manganese

Element Symbol:** Mn Isotopes of Manganese:** Mn - 52, Mn - 52m, Mn - 53, Mn - 54, Mn - 55, Mn - 56, Mn - 57
 * [[image:Electrolytic_Manganese_Metal_Flakes.jpg width="317" height="300" align="left"]]Manganese
 * Atomic #:** 25
 * Most Common Mass #:** 54.9380 g - mol^-1
 * Physical State @ room temperature:** solid @ 298K
 * Meaning of latin name:** //manges// means magnet
 * Uses of the element: 1)Iron** and steel production. **2)** Used in low cost steel production and alluminum alloys. **3)** Used as food for diatoms, molluscs, and sponges. **4)** Necessary for human survival. **5)** Uptake of manganese by humans takes place through food, such as spinach, tea and herbs.
 * Biological importance of the element:** Helps humans and bacterias way of life.
 * Discovered By:** Johann Gahn, 1774
 * How element was discovered:** Scientists began to suspect that __pyroluste__ might contain a new element. Scientists discovered magnesia in pyrolusite and later was named Manganese.
 * Physical Properties:** Silver, gray; very britle and thin.
 * Chemical Properties:** **1)** Moderately active metal. **2)** Combines with Oxygen in air to be formed. **3)** Reacts more rapidly @ high temperatures. **4)** Reacts slower in cool temps. **5)** Gives off bright white light when burnt. **6)** More rapid reactions in hot water; steam. **7)** Dissolves in most acids with the release of hydrogens.
 * Common Compounds of Manganese:** steel production; beverage cans; batteries; alloys.
 * Common Ions of Manganese: None
 * VIDEO: http://www.periodicvideos.com/ (click manganese on periodic table to view video)



SOURCES:

[|www.webelements.com]

[|www.lenntech.com/periodic-chart-elements/Mn-en.htm]

[|www.chemicalelements.com]