Video: Cov yam ntxwv twg ntawm cov hlau atoms pab piav qhia vim li cas valence electrons hauv cov hlau yog delocalized?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib daim ntawv cog lus hlau yog kev sib koom ntawm ntau qhov sib cais electrons nruab nrab ntawm ntau qhov zoo ions, qhov twg cov electrons ua raws li "kua nplaum" muab cov khoom muaj tseeb qauv. Nws tsis zoo li covalent lossis ionic bonding. Hlau muaj tsawg ionization zog. Yog li ntawd, lub valence electrons tuaj yeem yog delocalized thoob plaws hauv hlau.
Ib yam li ntawd, nws txhais li cas tias valence electrons hauv cov hlau yog delocalized?
a. Cov valence electrons txav ntawm atoms hauv kev sib koom orbitals. Cov valence electrons txav tawm ntawm lub orbitals thiab mus rau saum huab cua.
Ib yam li ntawd, vim li cas cov hlau muaj delocalized electrons? Hlau nyiam muaj siab melting ntsiab lus thiab boiling ntsiab lus qhia muaj zog bonds ntawm atoms. Cov electrons tuaj yeem txav mus los hauv cov molecular orbitals, thiab lwm yam hluav taws xob ua detached los ntawm nws niam txiv atom. Cov electrons yog hais tias yog delocalized.
Tsuas yog li ntawd, yam ntxwv ntawm cov hlau atoms pab piav qhia vim li cas valence electrons hauv cov hlau yog delocalized?
Tsis tas li ntawd, vim tsis tshua muaj ionization enthalpy sab nraud electrons yog delocalized (lawv tuaj yeem tshem tau yooj yim). Tsis tas li ntawd, lawv tuaj yeem poob tau yooj yim electrons uas txhais tau tias electrons nyob deb ntawm tus nqi zoo nucleus (loj loj ntawm atom ) piv rau cov tsis- hlau uas muaj nyiam mus nce electrons.
Qhov laj thawj twg zoo tshaj plaws piav qhia tias yog vim li cas cov hlau tsis muaj nkig?
Cov hlau yog ductile es tsis txhob nkig vim lawv muaj daim ntawv cog lus hloov tau. Ductility txhais tau tias muaj peev xwm ntawm a hlau yuav tsum tau kos rau hauv cov xov hlau. A hlau muaj daim ntawv cog lus hloov tau.
Pom zoo:
Tus yam ntxwv twg yog qhia los ntawm txhua yam muaj sia?
Hmoov zoo, biologists tau tsim cov npe ntawm yim yam ntxwv sib koom los ntawm txhua yam muaj sia. Cov yam ntxwv yog qhov zoo lossis qhov zoo. Cov yam ntxwv no yog lub koom haum ntawm tes, kev yug me nyuam, metabolism, homeostasis, heredity, teb rau stimuli, kev loj hlob thiab kev loj hlob, thiab adaptation los ntawm evolution
Qhov laj thawj twg zoo tshaj plaws piav qhia vim li cas cov hlau tsis muaj ductile es tsis nkig?
Cov hlau yog ductile es tsis txhob nkig vim tias lawv muaj cov ntawv cog lus hloov tau. Ductility txhais tau hais tias muaj peev xwm ntawm cov hlau los kos rau hauv cov xov hlau. Cov hlau muaj cov khoom sib txuas yooj yim. Qhov kev hloov pauv no tso cai rau lawv ua cov khoom siv
Qhov twg ntawm cov no yog tus yam ntxwv ntawm txhua yam muaj sia?
Cov yam ntxwv no yog lub koom haum ntawm tes, kev yug me nyuam, metabolism, homeostasis, heredity, teb rau stimuli, kev loj hlob thiab kev loj hlob, thiab adaptation los ntawm evolution. Qee yam, xws li tus kab mob, pom tsuas yog qee yam ntawm cov yam ntxwv no thiab yog li ntawd, tsis muaj sia nyob
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog
Dab tsi ntawm cov yam ntxwv hauv qab no piav qhia txog protozoa?
Protozoa yog cov kab mob eukaryotic. Txawm hais tias lawv feem ntau kawm hauv cov chav kawm zoology, lawv suav tias yog ib feem ntawm lub ntiaj teb microbial vim tias lawv yog unicellular thiab microscopic. Protozoa yog qhov tseem ceeb rau lawv lub peev xwm txav mus los ntawm nws tus kheej, ib tus cwj pwm pom hauv feem ntau ntawm hom