Science: Chemistry: Elements: Calcium

See also:

Calcium
Data tables and historic information.

ChemGlobe: Calcium
Electronic, thermal, and steric data along with an isotope table.

ChemicalElements.com: Calcium
Basic information, atomic structure, and isotopes.

EnvironmentalChemistry.com: Calcium
Atomic structure, chemical and physical properties, and table of nuclides.

It's Elemental: Calcium
Basic physical and historical information.

LANL: Calcium
History, sources, properties, uses, and compounds.

Lenntech: Calcium
Physical data, chemical properties, and health effects.

Visual Elements: Calcium
Image, animation, source, uses, and physical information.

WebElements: Calcium
Extensive information on history, uses, occurrence, compounds, and properties of the element.

Wikipedia: Calcium
Properties of the element, including its history, applications, and characteristics.

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