masurium

chemical element

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July 20, 2026

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Masurium is an outdated name for the chemical element technetium (Tc). Technetium is a synthetic, radioactive metal and was the first element to be produced artificially. It is found in Group 7 of the periodic table.

The most common isotope, technetium-99, is produced in kilogram quantities from nuclear reactors. Technetium metal resembles platinum and is typically found as a gray powder. It is also used in metallurgical tracing and in products designed to resist corrosion. A metastable isotope, technetium-99m, is valuable for medical imaging of organ structures.12

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Ida Noddack
…number 43, which they called masurium, after the region in Prussia that Noddack had come from, and atomic number 75, which they called rhenium, after the Latin name for the Rhine River.
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…number 43, which they called masurium, after the region in Prussia that Noddack had come from, and atomic number 75, which they called rhenium, after the Latin name for the Rhine River.
Read More