Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Niobium haina basa rinozivikanwa rezvinhu zvipenyu. Nepo niobium guruva riri ziso uye ganda inotsamwisa uye ingangoita njodzi yemoto, elemental niobium pachiyero chakakura haina basa mumuviri (uye nokudaro hypoallergenic) uye haina kukuvadza. Inowanzoshandiswa muzvishongo uye yakaedzwa kuti ishandiswe mune zvimwe zvinoshandiswa pakurapa. Zvinhu zvine niobium hazviwanzosangana nevanhu vakawanda, asi zvimwe zvine chepfu uye zvinofanira kubatwa nokungwarira. Kutapurwa kwenguva pfupi uye kwenguva refu ne niobates ne niobium chloride, makemikoro maviri anonyungudika mumvura, kwakaedzwa pamakonzo. Makonzo akarapwa nejekiseni rimwe chete re niobium pentachloride kana niobates anoratidza median lethal dose (LD50) iri pakati pe10 ne100 mg/ kg. Nokuda kwokushandiswa nomuromo utachiona hwakaderera; chidzidzo nemakonzo chakabudisa LD50 pashure pemazuva manomwe e940 mg/kg.  Mubvunzo: Niobuim ine chinangwa chipi nechipi choupenyu here?
hapana basa rinozivikanwa rezvinhu zvipenyu