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WebElements: Boron
Extensive information on history, uses, occurrence, compounds, and properties of the element.
Lenntech: Boron
Physical data, chemical properties, health and environmental effects.
ChemGlobe: Boron
Electronic, thermal, and steric data, along with general information.
ChemicalElements.com: Boron
Basic information, atomic structure, and table of isotopes.
Boron
Data tables and historic information.
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