Cov txheej txheem:
Video: Bonds ua haujlwm li cas hauv chemistry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A chemical bond yog ib tug ntev attraction ntawm atoms, ions los yog molecules uas enables tsim ntawm tshuaj tshuaj sib xyaw. Cov daim ntawv cog lus Tej zaum yuav tshwm sim los ntawm electrostatic quab yuam ntawm attraction ntawm oppositely them ions raws li nyob rau hauv ionic daim ntawv cog lus los yog los ntawm kev sib koom ntawm electrons li hauv covalent daim ntawv cog lus.
Ib yam li ntawd, nws raug nug, dab tsi yog 4 hom kev sib cog lus hauv chemistry?
4 Hom Tshuaj Bonds
- 1 Ionic daim ntawv cog lus. Ionic bonding cuam tshuam nrog kev hloov ntawm ib qho hluav taws xob, yog li ib lub atom tau txais ib qho hluav taws xob thaum ib lub atom poob ib qho hluav taws xob.
- 2 Covalent bond. Kev sib cog lus ntau tshaj plaws hauv cov organic molecules, covalent daim ntawv cog lus koom nrog kev sib koom ntawm electrons ntawm ob lub atoms.
- 3 Polar daim ntawv cog lus.
Kuj Paub, 3 hom tshuaj tiv thaiv kab mob yog dab tsi? Muaj peb yam tseem ceeb ntawm daim ntawv cog lus: ionic , covalent thiab hlau. Cov ntawv cog lus no tshwm sim thaum cov hluav taws xob hloov pauv los ntawm ib lub atom ob qho tib si, thiab yog qhov tshwm sim ntawm qhov kev nyiam ntawm qhov tshwm sim tawm tsam ions. Qhov no tshwm sim ntawm atoms nrog qhov sib txawv electronegativity feem ntau loj dua 1.8.
Ua raws li qhov no hauv kev xav, dab tsi yog daim ntawv cog lus tshuaj hauv kev tshawb fawb?
Chemical bond . A chemical bond yog lub cev tshwm sim ntawm tshuaj Cov khoom raug tuav ua ke los ntawm kev nyiam ntawm atoms rau ib leeg los ntawm kev sib koom, nrog rau kev sib pauv, ntawm electrons - lossis electrostatic rog.
Dab tsi yog qhov kev sib raug zoo tshaj plaws hauv chemistry?
2/ yog covalent daim ntawv cog lus muaj siab polarity ntxiv rau siab molecular mass thiab symmetrical uas pab nyob rau hauv packing ces covalent daim ntawv cog lus ntawm cov khoom yuav muaj zog dua.
Cov khoom siv tshuaj muaj zog tshaj plaws yog covalent daim ntawv cog lus.
- Dab tsi yog daim ntawv cog lus tshuaj hu ua tsim los ntawm kev sib koom ntawm electrons?
- Ib qho chaw puas tuaj yeem muaj ntau tshaj ib daim ntawv cog lus?
Pom zoo:
Lub luag haujlwm ntawm CDK yog dab tsi hauv lub cev ua haujlwm ntawm tes tshwj xeeb hauv lub voj voog ntawm tes?
Los ntawm phosphorylation, Cdks teeb liab lub xov tooj ntawm tes uas nws tau npaj kom dhau mus rau theem tom ntej ntawm lub voj voog ntawm tes. Raws li lawv lub npe qhia, Cyclin-Dependent Protein Kinases yog nyob ntawm cyclins, lwm chav kawm ntawm kev tswj hwm cov protein. Cyclins khi rau Cdks, ua kom cov Cdks rau phosphorylate lwm cov molecules
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Cov txheej txheem dab tsi yog lub luag haujlwm rau txoj haujlwm ua haujlwm sib txawv?
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