Technetium
ChemGlobe: Technetium
Electronic, thermal, and steric data along with an isotope table.
ChemicalElements.com: Technetium
Basic information, atomic structure, and isotopes.
EnvironmentalChemistry.com: Technetium
Atomic structure, chemical and physical properties, and table of nuclides.
Radiochemistry of Technetium
Full text of the monograph by Edward Anders (Enrico Fermi Institute and Dept. of Chemistry, University of Chicago, Chicago, Illinois). [PDF format]
Visual Elements: Technetium
Image, general and physical information, source, uses, key isotopes, and ionisation energies.
WebElements: Technetium
Extensive information on history, uses, occurrence, compounds, and properties.
Wikipedia: Technetium
Properties of the element, including its history, applications, and characteristics.
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