Indium « Elements « Chemistry

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ChemGlobe: Indium - Electronic, thermal, and steric data along with an isotope table.
ChemicalElements.com: Indium - Basic information, atomic structure, and isotopes.
EnvironmentalChemistry.com: Indium - Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Indium - Basic physical and historical information.
LANL: Indium - History, sources, properties, and uses.
Lenntech: Indium - Physical data, chemical properties, and health effects.
USGS Minerals Information: Indium - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
Visual Elements: Indium - Image, appearance, uses, physical information, and ionisation energies.
WebElements: Indium - Extensive information on history, uses, occurrence, compounds, and properties.
Wikipedia: Indium - Properties of the element, including its history, applications, and characteristics.
Radiochemistry of Indium - Full text of the monograph by Duane Neuman Sunderman (Battelle Memorial Institute, Columbus, Ohio) and Charles William Townley (Battelle Memorial Institute, Columbus, Ohio). [PDF] (May, 1960)