鎷:
1. The 43rd chemical element, erroneously recognized. In 1925, German chemist Noddack announced the discovery of the 43rd element, naming it "鎷." In 1937, Americans including Beral found the true 43rd element through the artificial transformation of molybdenum atoms, which is the chemical element "technetium."
2. An old translation for the chemical element "scandium."