Omume ntụrụndụ, Obon
The kasị oké ọnụ metal na ụwa - bụghị gold ma ọ bụ platinum
Iji zaa ajụjụ ahụ banyere ụdị metal bụ ihe kasị oké ọnụ n'ụwa a ga-ekewa niile "mpi" na abụọ nhazi iche iche: ndammana na-ewere ọnọdụ nke mmadụ mere, na-akwadebe na laabu. Nke bụ eziokwu na ezigbo uru nke metal nke ìgwè nke abụọ nke ọtụtụ iwu nke ịdị ukwuu elu karịa nke mbụ.
First, tụlee oké ọnụ ọla na-adị ke uwa.
The ọzọ ịma ya aka maka aha nke "kasị oké ọnụ metal na ụwa" - Os. Nke a ihe onwunwe bụ bluish-silver agba na a elu njupụta, o nwere onye wetara isi. Ọ na-eji na-emepụta ọgwụ (ọgwụ ọjọọ, "Kortozin"), na chemical ụlọ ọrụ dị ka mkpali. Price osmium bụ $ 19 kwa 1 gram.
atọ isi meghere gold - ndị kasị oké ọnụ metal n'ụwa kemgbe ọtụtụ narị afọ akụkọ ụmụ mmadụ. Ugbu a bụ ihe kasị dị nro metal, na ọ dị adị naanị na ọcha ụdị. Corrosion eguzogide, ductility na elu na-eri ka ndị kasị mma ihe maka imewe nke gold ọla. Price dịgasị nọgidere na mpaghara nke $ 30-40 kwa gram na a ọchịchọ ntọt.
Na n'ọnọdụ nke abụọ platinum - bụ ndị kasị oké ọnụ metal na ụwa na ọla ụlọ ọrụ. Amịpụtara nanị dị ka a platinum alloys na ndị ọzọ ọla. Ngwa - jewelery, ọgwụ, na ogwe aka mmepụta. The na-eri hà $ 70 kwa 1 gram.
Ka anyị lee anya na abụọ akaebe nke ọ bụla nke na edemede - ọla, nwetara na laabu, a na-akpọ isotopes.
Vice-mmeri nke na edemede - isotope osmium-187. Ya na nke mbụ nwetara na UK site dissolving platinum na ngwakọta nke abụọ asịd: nitric na hydrochloric. Umi odo odo-oji na agba na-incredibly elu njupụta - kasị na mbara Ụwa. Otú ọ dị, metal bụ nnọọ na-emebi emebi. Nweta osmium-187 bụ incredibly ike, ma ọ dighi mba ụwa anaghị ugbu a na-ere nke a metal n'ihi na mbupụ. Kazakhstan na-arụpụta ihe isotope ruo mgbe na-adịbeghị anya na-exported, ịtọ price larịị nke 10 puku dollar kwa gram. Mgbe nchupu nke ọkọnọ price nke osmium-187 jumped 200 puku kwa gram.
Ndien ke akpatre, ndị kasị oké ọnụ metal n'ụwa - California. Ọ natara na United States na 1950. Nke a mmewere nwere n'ezie na-enweghị atụ, ohere dị nuklia ike: dị ka a dị ike isi iyi nke neutrons bụ ike dochie ya mfe nuclear chernobyl. Global mmepụta ke afọ sonso karịa a ole na ole iri puku kwuru iri milligrams, kama n'ihi na California nwere nkà mmụta mbara igwe na-eri: 6 na ọkara nde dollar kwa gram!
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