Silicon keeb kwm cim Si
Txiag Silicon
Neeg tsawg tsawg tus lej 14
Tus txheeb ze atomic mass 28.09
Muaj ob yam ntawm allotropes, amorphous thiab crystalline.
silicon
silicon
Crystalline silicon yog steel grey, amorphous silicon yog xim dub, ntom ntom 2.4g / cm3, melting taw tes 1420 ° C, kub taw tes 2355 ° C, crystalline silicon yog atomic crystal, nyuaj thiab ci, nrog cov khoom muaj semiconductor. Cov khoom siv tshuaj ntxuav tawm ntawm silicon yog cov nquag. Nws tuaj yeem ua ke nrog oxygen thiab lwm yam hauv siab kub. Nws yog insoluble hauv dej, nitric acid thiab hydrochloric acid, tab sis soluble hauv hydrofluoric acid thiab lye. Nws siv los ua cov alloys xws li ferrosilicon, silicon steel, thiab lwm yam, muaj ib qho khoom siv Silicon yog ib qho tseem ceeb ntawm cov khoom siv uas siv los ua lub zog siab, transistors, rectifiers, hnub ci hlwb, thiab lwm yam. Silicon yog dav faib hauv qhov, txog 27.6% lub ntiaj teb' s daim tawv nqaij, mas nyob rau hauv daim ntawv ntawm silica thiab silicate.
