Video: Dab tsi yog qhov sib txawv ntawm crystalline solids?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov chav kawm ntawm Crystalline Solids . Crystalline Cov tshuaj tuaj yeem piav qhia los ntawm hom ntawm particles nyob rau hauv lawv thiab cov hom ntawm chemical bonding uas tshwm sim ntawm qhov hais. Muaj plaub hom Ntawm cov muaju: (1) ionic, (2) metallic, (3) covalent network, thiab (4) molecular.
Ntxiv rau qhov no, cov khoom sib txawv yog dab tsi?
Muaj ob yam tseem ceeb ntawm cov khoom khib nyiab : crystalline thiab amorphous. Crystalline cov khoom khib nyiab yog zoo txiav txim nyob rau theem atomic, thiab amorphous cov khoom khib nyiab muaj teeb meem. Muaj plaub ntau hom ntawm crystalline cov khoom khib nyiab : molecular cov khoom khib nyiab , network cov khoom khib nyiab , ionic cov khoom khib nyiab , thiab metallic cov khoom khib nyiab.
Ib tug kuj yuav nug, dab tsi yog cov khoom ntawm crystalline solids? Crystalline khoom Lawv yog cov ruaj, tuav ib tug meej thiab ruaj zoo, yog nruj thiab incompressible. Lawv feem ntau muaj cov duab geometric thiab lub ntsej muag tiaj tus. Thiab piv txwv muaj xws li pob zeb diamond, hlau, ntsev thiab lwm yam. Kom nkag siab txog cov muaju peb yuav tsum to taub lawv cov qauv.
Cov lus nug tseem yog, dab tsi yog qhov piv txwv ntawm crystalline khoom?
A siv lead ua los yog crystalline khoom yog a khov kho cov khoom uas nws cov khoom (xws li atoms, molecules, los yog ions) yog teem rau hauv ib tug heev txiav txim microscopic qauv, ua ib tug siv lead ua lattice uas txuas mus rau txhua qhov chaw. Piv txwv ntawm cov muaju loj muaj xws li snowflakes, pob zeb diamond, thiab lub rooj ntsev.
Cov khoom ntawm cov khoom yog dab tsi?
Khoom yog cov yam ntxwv ntawm cov qauv rigidity thiab tsis kam mus rau kev hloov ntawm cov duab los yog ntim. Tsis zoo li kua, a khov kho yam khoom tsis ntws mus rau hauv cov duab ntawm nws lub thawv, thiab tsis nthuav mus sau tag nrho cov ntim uas muaj rau nws zoo li roj.
Pom zoo:
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