The period table next to the xray machine has element 104 with the symbol Ek. When discovered, the first proposed name for element 104 was kurchatovium with the symbol Ku and the International Union of Pure and Applied Chemistry adopted the temporary systematic name unnilquadium (Unq). It was finally named rutherfordium (Rf) in 1992. There is no element with the symbol Ek.
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05/03/2025 alle ore 09:37
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