Prometium: Béda antara owahan

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'''Prometium''' ({{pronEng|prəˈmiːθiəm/, /proʊˈmiːθiəm}}) iku sawijining [[unsur kimia]] kanthi simbul '''Pm''' lan [[nomer atom]] 61.
It is notable for being the only other radioactive element besides [[technetium]] which is followed by chemical elements that have stable [[isotopes]].