See also:

• Science: Chemistry: Elements: Alkali Earth Metals  (1)

• ChemGlobe: Strontium - Electronic, thermal, and steric data along with an isotope table.
• ChemicalElements.com: Strontium - Basic information, atomic structure, and isotopes.
• EnvironmentalChemistry.com: Strontium - Atomic structure, chemical and physical properties, and table of nuclides.
• It's Elemental: Strontium - Basic physical and historical information.
• LANL: Strontium - History, forms, properties, isotopes, and uses.
• Lenntech: Strontium - Physical data, chemical properties, health and environmental effects.
• USGS Minerals Information: Strontium - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
• Visual Elements: Strontium - Uses, physical information, key isotopes, and ionisation energies.
• WebElements: Strontium - Extensive information on history, uses, occurrence, compounds, and properties of the element.
• Wikipedia: Strontium - Properties of the element, including its history, applications, and characteristics.

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