Video: Cov ntsiab lus twg tsis khi rau tsim cov molecules?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
ib lub molecule yog ib pawg nruab nrab ntawm cov atoms uas tau koom ua ke los ntawm ib los yog ntau dua covalent bonds. Qhov twg ntawm cov ntsiab lus no tsis khi rau tsim molecules: oxygen , tshuaj chlorine , neon , los yog leej faj ? neon vim hais tias nws yog ib tug noble roj thiab tsis xav qhia electrons nrog rau lwm cov atoms.
Hauv qhov no, cov ntsiab lus dab tsi tsis tsim cov molecules?
Qhov tseeb muaj tsuas yog peb lub ntsiab lus uas cov atoms tsis koom nrog kev sib raug zoo ntawm txhua yam: helium, neon thiab argon. (Qhov tseeb tom kawg tsim cov excimers, tab sis tsis txhob xav txog cov ntawd). Yog vim li cas lawv tsis kam ua daim ntawv cog lus yog tias lawv lub plhaub sab nraud yog tag nrho thiab nws lub zog tsawg heev.
Tsis tas li ntawd, cov ntsiab lus twg tuaj yeem tsim cov ntawv cog lus? Cov no daim ntawv cog lus nyiam tshwm sim nrog nonmetal cov ntsiab lus ntawm daim ntawv periodic. Dej yog ib yam khoom paub uas muaj hydrogen thiab oxygen txuas los ntawm covalent bonds . Cov no cov ntsiab lus raug suav hais tias yog covalent . Lwm yam cov ntsiab lus uas tuaj yeem tsim covalent bonds muaj xws li nitrogen, carbon thiab fluorine.
Tsis tas li ntawd, yuav ua li cas atoms bond tsim molecules?
Thaum ob los yog ntau tshaj atoms tshuaj daim ntawv cog lus ua ke, lawv daim ntawv a molecule . Hauv covalent daim ntawv cog lus , electrons sib koom ntawm atoms . Cov daim ntawv cog lus nruab nrab ntawm ob lub hydrogen atoms thiab cov pa oxygen atom hauv a molecule dej yog covalent daim ntawv cog lus.
Dab tsi yog cov khoom tsim los ntawm?
Ib keeb yog ib yam khoom uas yog ua tag nrho los ntawm ib hom atom. Piv txwv li, lub keeb hydrogen yog ua los ntawm atoms uas muaj ib tug proton thiab ib tug electron. Yog tias koj hloov tus naj npawb ntawm protons atom muaj, koj hloov hom keeb nws yog.
Pom zoo:
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