Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Platinum chinhu chemakemikari chine chiratidzo Pt uye nhamba yeatomu 78. Idense, inochinjika, inochinjika, isinganyanyi kuita basa, inokosha, isirivha-chena. Zita rayo rinobva pashoko rechiSpanish rokuti platino, rinoreva "sirivha duku". Platinum inhengo yeboka replatinum rezvinhu uye boka 10 re periodic table yezvinhu. Iine isotopes nhanhatu dzinowanikwa zvakasikwa. Icho chimwe chezvinhu zvisingawanzoitiki muCust Earth, ine huwandu hwepakati hweanenge 5 μg / kg. Inowanikwa mune zvimwe zvicherwa zve nickel nemhangura pamwe chete nedzimwe nzvimbo dzomunyika, kunyanya muSouth Africa, iyo inopa 80% yekugadzirwa kwenyika. Nemhaka yokushomeka kwayo muGumbo rePasi, mazana mashomanana ematani anogadzirwa gore negore, uye achipiwa kushandiswa kwayo kunokosha, inokosha zvikuru uye inokosha zvikuru yesimbi inokosha. Platinum ndeimwe yemasimbi asingashandi. Iyo ine kuramba kunoshamisa kukuora, kunyange patembiricha dzakakwirira, uye naizvozvo inorangarirwa sesimbi inokosha. Somuuyo, platinum inowanwanwanwa isina kusanganiswa nemakemikoro seplatinamu yomunzvimbomo. Nemhaka yokuti inowanika zvakasikwa mujecha remvura yomurwizi rwakasiyana-siyana, yakatanga kushandiswa nevanhu vomunyika yokuSouth America vakararama nguva yaColumbus isati yasvika kuti vagadzire zvinhu zvekare. Yakataurwa nezvayo muzvinyorwa zveEurope kubvira muzana remakore rechi16, asi masayendisiti akatanga kuitsvakurudza kusvikira muna 1748 apo Antonio de Ulloa akabudisa mushumo pamusoro pesimbi itsva yokuColombia.  Mubvunzo: Platinum rudzii rwesimbi?
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