noun:a radioactive metallic element obtained especially from nuclear fuel as a product of uranium fission and used as a diagnostic radiopharmaceutical
synonyms: eka-manganese
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(..) All right, for ten points, "What is the lightest element on Earth "with no stable isotope?" AA? And of course, the answer is technetium. Terrific. Next question: "What is the force between two uncharged plates "due to quantum vacuum fluctuations?" (..)
