Strontium, with the chemical symbol Sr, is an alkaline earth metal that was first isolated in 1792 by the British chemist Adair Crawford. It was later produced in its pure form through electrolysis by Sir Humphry Davy in 1808. Strontium is not found in its elemental state in nature but occurs in compounds, primarily in strontianite and celestine.

On Earth, strontium is present in small amounts, approximately 0.034% in the Earth's crust. An intriguing application of strontium lies in pyrotechnics, where strontium salts produce red flames. Strontium-90, a radioactive isotope of strontium, is used in medical treatments for cancer therapy.

Future applications of strontium could emerge in materials science, particularly in the development of high-performance materials for electronics and sensor technologies. Researchers are exploring the properties of strontium compounds to create innovative materials with specific electronic and magnetic properties that could find application in future technologies.

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