Video: Hom kev sib txuas dab tsi yog yam ntxwv ntawm cov khoom uas muaj qhov kub siab melting point?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ionic lattice
Tag nrho cov ionic tebchaw muaj lub siab melting point thiab boiling point vim muaj ntau yam muaj zog ionic daim ntawv cog lus yuav tsum tau tawg. Lawv ua thaum molten los yog nyob rau hauv kev daws raws li cov ions yog dawb txav mus los. Lawv tuaj yeem tawg los ntawm electrolysis. Lawv feem ntau yog soluble hauv dej.
Nyob rau hauv no txoj kev, hom ntawv cog lus twg muaj lub siab melting point?
Ionic tebchaw yog tsim los ntawm muaj zog electrostatic kev sib cuam tshuam ntawm ions, uas ua rau siab melting ntsiab lus thiab hluav taws xob conductivity piv rau covalent compounds. Covalent compounds muaj daim ntawv cog lus qhov twg electrons sib koom ntawm atoms.
Ib tug kuj yuav nug, hom ntawv cog lus twg muaj cov ntsiab lus siab melting thiab boiling? Siab melting thiab boiling ntsiab lus - Ionic daim ntawv cog lus muaj zog heev - xav tau ntau lub zog los rhuav tshem lawv. Yog li ionic compounds muaj siab melting thiab boiling ntsiab lus . Conductive thaum ua kua - Ions yog them cov khoom, tab sis ionic compounds tsuas yog ua hluav taws xob yog tias lawv cov ions dawb txav.
Ib yam li ntawd, koj tuaj yeem nug, yam khoom twg muaj lub siab melting point thiab ua hluav taws xob hauv cov kua theem?
ionic
Puas yog covalent bonds muaj cov ntsiab lus melting siab?
Covalent bond yog ib sib koom ua ke ntawm electrons. Covalent bonding tshwm sim nyob rau hauv tsim ntawm molecules los yog loj heev lug. Tshuaj nrog me me molecules muaj qis yaj thiab boil cov ntsiab lus thiab ua tsis ua hluav taws xob. Giant covalent tshuaj muaj heev cov ntsiab lus melting siab.
Pom zoo:
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