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Technetium (chemical symbol Tc) is a silver-gray, radioactive metal. It occurs naturally in very small amounts in the earth's crust, but is primarily man-made. Technetium-99 is produced during nuclear reactor operation, and is a byproduct of nuclear weapons explosions.

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Free Images: "bestof:Lardolure is.svg Synthesis of Ladolure Own 2010-11-24 Codc <span class signature-talk >talk</span> PD-chem Cc-zero Chemical syntheses"

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Lardolure is.svg

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Synthesis Metallo Phthalocyanine.svg

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Mechanismus Knorr-Pyrrol-Synthese V1.svg

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Iso-octane synthesis.svg

Paal- Knorr Furan Synthese -Reaktionsmechanismus 2.svg

Paal- Knorr Pyrrole Synthese -Reaktionsmechanismus 2.svg

Paal- Knorr Thiophen -Reaktionsmechanismus 2.svg

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Mechanismus Kabachnik-Fields-Reaktion V1.svg

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Mechanismus Koenigs-Knorr-Methode V1.svg

Mechanismus Meyer-Schuster-Synthese V1.svg

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