Video: NaCl tsim los ntawm kev hloov hluav taws xob li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum sodium thiab chlorine atoms tuaj ua ke tsim sodium chloride ( NaCl ), lawv hloov ib hluav taws xob . Nrog rau hloov ntawm hluav taws xob , txawm li cas los xij, lawv dhau los ua hluav taws xob, thiab sib xyaw ua ntsev los ntawm tsim ntawm ionic bonds. Lub sodium ion tam sim no tsuas muaj kaum electrons , tab sis tseem muaj kaum ib protons.
Hauv qhov no, sodium chloride tsim los ntawm kev hloov hluav taws xob li cas Vim li cas cov tshuaj sodium chloride ua hluav taws xob?
Sodium Chloride yog ib qho ionic compound uas muaj Sodium ion thiab Chloride ion. Hauv khoom daim ntawv kev sib raug zoo ntawm ob qho no muaj zog heev. Tab sis nyob rau hauv dej cov ions ua dawb thiab txav random. Cov ions no yog cov khoom thauj thiab yog li lub luag haujlwm rau hluav taws xob kev coj ua.
Tsis tas li ntawd, dab tsi cuam tshuam rau kev hloov ntawm electrons rau lub nucleus? Hluav taws xob yog cov tsis zoo them nqi ntawm atom. Ua ke, tag nrho cov electrons ntawm ib qho atom tsim cov nqi tsis zoo uas sib npaug qhov zoo ntawm cov protons hauv atomic nucleus . Hluav taws xob yog me me heev piv rau tag nrho lwm qhov ntawm lub atom.
Ua raws li qhov no, hom kev sib cog lus twg yog qhov tshwm sim ntawm kev hloov ntawm ib qho hluav taws xob?
Kev tsim ntawm Ionic daim ntawv cog lus yog qhov tshwm sim ntawm kev hloov pauv ntawm ib lossis ntau dua electrons los ntawm ib tug hlau mus rau ib tug uas tsis yog-hlau. Covalent Bonding : Bonding nruab nrab ntawm cov hlau tsis muaj hlau muaj ob electrons sib koom ntawm ob lub atom. Hauv covalent kev sib raug zoo , ob electrons sib koom los ntawm cov atoms yog attracted rau lub nucleus ntawm ob lub atoms.
Puas yog sodium chloride yog cov khoom siv hluav taws xob zoo?
Nyob rau hauv lub xeev khoom, ionic compounds xws li sodium chloride muaj lawv cov ions ruaj khov nyob rau hauv txoj hauj lwm thiab yog li cov ions tsis tuaj yeem txav mus los yog li cov khoom siv ionic tsis tuaj yeem ua hluav taws xob . Txawm li cas los xij nyob rau hauv lub xeev molten, ions nyob rau hauv ionic tebchaw yog pub dawb ntws thiab yog li molten sodium chloride tuaj yeem coj hluav taws xob.
Pom zoo:
Txoj cai lij choj ntawm kev txuag hluav taws xob siv li cas rau kev hloov hluav taws xob?
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Tus nqi zoo attracts tus nqi tsis zoo thiab ua rau lwm tus nqi zoo. Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms? Cov nqi hluav taws xob yog cov cuab yeej ntawm tag nrho cov atoms
Dab tsi yog qhov zoo ntawm kev siv lub tshuab hluav taws xob hloov hluav taws xob hauv atomic absorption?
Qhia qhov zoo thiab qhov tsis zoo ntawm lub cub tawg piv nrog kev siv cov nplaim taws hauv atomic absorption spectroscopy. Cov txiaj ntsig tseem ceeb yog ntau dua rhiab heev (concentration thiab tshwj xeeb tshaj yog loj). Lub ntsiab tsis zoo yog cov cuab yeej cuab tam ntau dua thiab cov nqi ntsuas