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In spite of its exotic heritage, technetium is now widely used in medicine as a diagnostic tool. Radioactive molybdenum-99 is allowed to decay to form technetium-99m — meaning 99 Tc in an ...

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Radioactive Technetium-99m is used in medicine to image the skeleton and heart and has a six-hour half-life. If it is injected into a patient and considered to be safe in 10 half-lives ...