Cov khoom ntawm Silicon

Silicon yog ib qho ntawm cov semimetals, yav tas los hu ua "silicon". Lub melting point yog 1420 degree thiab qhov ceev yog 2.34g / cm3. Hard thiab nkig nyob rau hauv kev ntxhib los mos. Insoluble hauv acids ntawm chav tsev kub, yooj yim soluble hauv alkalis. Cov khoom ntawm hlau silicon zoo ib yam li germanium, txhuas, thiab tin, thiab nws muaj cov khoom semiconductor. Silicon muaj ntau heev nyob rau hauv lub ntiaj teb lub crust, thib ob tsuas yog oxygen thiab accounting rau ntau tshaj li ib feem peb ntawm tag nrho cov luj ntawm lub crust. Nws muaj nyob rau hauv daim ntawv ntawm silica los yog silicates. Lub purest silicon mineral yog quartz los yog silica. Silicon muaj ob hom allotropes: ib qho yog xim av tsaus amorphous hmoov nrog cov khoom muaj zog uas tuaj yeem hlawv hauv huab cua; Lwm hom yog cov muaju ruaj khov (crystalline silicon). General silica thiab quartz yog siv rau iav thiab lwm yam khoom siv hauv tsev, thaum zoo quartz yog siv los ua alloys, hlau, thiab ib leeg muaju.