Tirohia te wāhanga i raro nei, me te ka whakahoki i te pātai i muri i roto i te reo ano rite te wāhanga: Passage: He maha o ngā āhuatanga o te technetium i matapae e Dmitri Mendeleev i mua i te huānga i kitea. kite Mendeleev he āputa i roto i tona ripanga wā, ka hoatu te huānga kitea te ingoa ā-wāhi ekamanganese (Em). I roto i te 1937, technetium (te technetium-97 isotope) ka riro i te huānga tuatahi nuinga waihanga ki te kia whakaputaina, na reira tona ingoa (i te Kariki τεχνητός, te tikanga "waihanga ranei", + -ium). Pātai: Ko wai te pūtaiao i matapae maha o nga āhuatanga o technetium i mua i tona kitenga?
Ko Dmitri Mendeleev