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illinium
illinium (ɪˈlɪnɪəm) n (Elements & Compounds) chem the former name for promethium[C20: New Latin, from Illinois + -ium]illinium
illinium (ĭlĭn`ēəm): see promethiumpromethium , artificially produced radioactive chemical element; symbol Pm; at. no. 61; mass no. of most stable isotope 145; m.p. 1,042°C;; b.p. 3,000°C; (estimated); sp. gr. unknown; valence +3. ..... Click the link for more information. .illinium[ə′lin·ē·əm] (nuclear physics) promethium-147 MedicalSeepromethium |