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tylko w Elements/Francium
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Elements
: Francium:
See also:
Science: Chemistry: Elements: Alkali Metals
(2)
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.
Lenntech: Francium
- Physical data and chemical properties.
Visual Elements: Francium
- Image, general and physical information, and key isotopes.
Wikipedia: Francium
- Properties of the element, including its history and characteristics.
