I-118 yeentlobo ngeentlobo zamalungu eekhemikhali ziyaziwa kwi-khemistri yala maxesha siphila kuwo. Ngama-92 ala malungu afumanekayo kwindalo, kwaye ezinye zingenziwa kuphela kwii-laboratories. Umzimba womntu wenziwe ngamalungu anga-26. Ilungu lendalo nekulelokugqibela elathi labhaqwa laliyi-uranium, ngo-1789. Uzenzele wokuqala yaba yi-Technetium, ngo-1937.