See also:

• Science: Chemistry: Elements: Transition Metals  (3)

• ChemGlobe: Manganese - Electronic, thermal, and steric data along with an isotope table.
• ChemicalElements.com: Manganese - Basic information, atomic structure, and isotopes.
• EnvironmentalChemistry.com: Manganese - Atomic structure, chemical and physical properties, and table of nuclides.
• It's Elemental: Manganese - Basic physical and historical information.
• LANL: Manganese - Sources, properties, uses, and handling.
• Lenntech: Manganese - Physical data, chemical properties, health and environmental effects.
• USGS Minerals Information: Manganese - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
• Visual Elements: Manganese - General and physical information, source, uses, biological role, key isotopes, and ionisation energies.
• WebElements: Manganese - Extensive information on history, uses, occurrence, compounds, and properties of the element.
• Wikipedia: Manganese - Properties of the element, including its history, applications, and characteristics.

• Radiochemistry of Manganese - Full text of the monograph by R. P. Schuman (Dept. of Chemistry, Robert College, Bebek P.K.8, Istanbul, Turkey). [PDF] (July, 1971)