Hmoob kub yog ib yam khoom thiab cov ntxhia Nws tau txais txiaj ntsig zoo los ntawm tib neeg vim nws cov xim ntxim nyiam, nws qhov tsis tshua muaj, tsis kam ua kom tarnish, thiab nws cov khoom tshwj xeeb - qee qhov uas yog tshwj xeeb rau kub. … Txawm hais tias muaj txog nees nkaum kub sib txawv, txhua yam ntawm lawv muaj tsawg heev.
kub yog dab tsi?
Gold belongs to group Ib of the periodi. c rooj, xws li nyiaj thiab tooj liab. Nws tus lej atomic yog 79, thiab qhov hnyav atomic yog 197.0; Nws suav nrog ib qho isotope.
Puas kub yog cov pob zeb tseem ceeb?
Gold - Cov pob zeb tseem ceeb ntawm kub yog cov hlau thiab hluav taws xob(ib qho kub-nyiaj alloy). Qee cov tellurides kuj tseem ceeb ore minerals xws li calaverite, sylvanite, thiab petzite. Hafnium - Lub hauv paus ore ntxhia yog zircon. … Lead - Lub ntsiab ore ntxhia rau txhuas yog nws sulfide - galena.
kub pom qhov twg?
Kub feem ntau pom raws li cov hlau ntshiab, ib txwm muaj. Sylvanite thiab calaverite yog cov ntxhia pob zeb kub. Kub feem ntau pom nyob rau hauv cov hlab ntsha quartz, los yog placer kwj gravel. Nws yog mined hauv South Africa, Tebchaws Asmeskas (Nevada, Alaska), Russia, Australia thiab Canada.
Puas pob zeb diamond yog pob zeb?
pob zeb diamond, ib pob zeb muaj li ntawm cov pa roj carbon ntshiab. Nws yog qhov nyuaj tshaj plaws uas tshwm sim tau paub; nws kuj yog lub pob zeb nrov tshaj plaws. Vim tias lawv cov tawv tawv heev, pob zeb diamond muaj ntau cov ntawv thov kev lag luam tseem ceeb.
