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ChemicalElements.com: Francium
Basic information, atomic structure, and isotopes table.
EnvironmentalChemistry.com: Francium
Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Francium
Basic physical and historical information.
Wikipedia: Francium
Properties of the element, including its history and characteristics.
[Periodic Table Mozilla]
Last update:
June 24, 2015 at 12:54:06 UTC
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