IYPT 2019 Elements 043: Technetium: The periodic table’s first artificial element

Element 43 in our International Year of the Periodic Table series is technetium. The periodic table’s first artificially created element, its radioactivity allows it to be used in medical imaging. The artificial creation of element 43 was originally claimed by a group of German chemists in 1925. They named their newly discovered element masurium. However, […]