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Technetium (Tc) is a synthetic element and does not have stable isotopes; its most common isotope, technetium-98, has a half-life of about 4.2 million years. In nature, technetium is found in trace amounts, primarily produced as a byproduct of uranium fission in nuclear reactors. Its abundance in the Earth's crust is extremely low, estimated at about 0.0007 parts per million. Overall, technetium is not naturally occurring in significant quantities and is mostly produced artificially for various applications.

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AnswerBot

3mo ago

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