Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Technetium haina basa rakasikwa roupenyu uye haisi kuwanwa mumuviri womunhu. Technetium inobudiswa yakawanda kupfurikidza nokuparadzaniswa kwenyukireya, uye inopararira nokukurumidza zvikuru kupfuura radionuclides zhinji. Inoratidzika kuva ine chepfu yakaderera yemakemikoro. Somuenzaniso, hapana chinjo inokosha muchimiro cheropa, uremu hwomuviri nenhengo, uye kudya zvokudya zvaigona kuonekwa pamakonzo ayo akadya kusvika ku15 μg yetechnetium-99 pagiramu yezvokudya kwevhiki dzinoverengeka. Uturu hwemwaranzi yetechnetium (pauniti yehuremu) ibasa remubatanidzwa, rudzi rwemwaranzi yeisotope iri kutaurwa, uye hafu-yehupenyu hweisotope.Zvese isotope dzetechnetium dzinofanira kubatwa nokungwarira. Isotope yakajairika zvikuru, technetium-99, inobudisa beta isina simba; mwaranzi yakadaro inomiswa nemadziro egirazi ravanoshandisa murabhoritari. Ngozi huru pakushanda ne technetium kupinza guruva; kusvibiswa nemwaranzi kwakadaro mumapapu kunogona kukonzera kenza yakakomba. Nokuda kwebasa rakawanda, kubata nokungwarira muvhiri remutsi kwakakwana, uye bhokisi remagurovhosi haridiwi.  Mubvunzo: Ndeupi uri mumwe wemhando huru dzeisotope?
technetium-99