Cov txheej txheem:
Video: Dab tsi yog ob qhov tseem ceeb ntawm lub atom?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob lub ntsiab ntawm lub atom yog cov nucleus thiab huab ntawm electrons . Cov nucleus muaj qhov zoo them nqi thiab nruab nrab subatomic hais, whereas huab ntawm electrons muaj cov khoom me me uas tsis zoo.
Cov lus nug tseem yog, dab tsi yog qhov tseem ceeb ntawm lub atom?
Peb qhov tseem ceeb ntawm atom yog protons , neutrons , thiab electrons . Protons - muaj tus nqi zoo, nyob hauv lub nucleus , Protons thiab neutrons muaj ze li tib lub sijhawm electrons muaj ntau tsawg loj. Neutrons - Muaj tus nqi tsis zoo, nyob hauv lub nucleus.
Tsis tas li ntawd, peb hom sib txawv ntawm ib qho atom yog dab tsi? Cov peb lub ntsiab subatomic cov khoom uas form ib atom yog protons, neutrons, thiab electrons. Qhov chaw ntawm lub atom hu ua nucleus. Ua ntej, cia peb kawm me ntsis txog protons thiab neutrons, thiab tom qab ntawd peb yuav tham txog electrons me ntsis tom qab. Protons thiab neutrons tsim cov nucleus ntawm ib qho atom.
Hais txog qhov no, dab tsi yog ob feem ntawm cov lus nug atom?
Cov ntsiab lus hauv cov teeb no (17)
- Atom. lub hauv paus particle uas tag nrho cov ntsiab yog tsim; lub hauv paus chav tsev ntawm cov teeb meem uas muaj ib tug ntom central nucleus surrounded los ntawm ib tug huab ntawm tsis zoo nqi electrons.
- Element. daim ntawv yooj yim tshaj plaws ntawm cov khoom ntshiab.
- Nucleus.
- Hluav taws xob.
- Neutron.
- Proton.
- Atomic naj npawb.
- Tus naj npawb.
Qhov 2 qhov twg ua rau lub nucleus ntawm lub atom?
Lub nucleus ntawm ib lub atom yog tsim los ntawm protons thiab neutrons (ob hom baryons) koom nrog lub zog nuclear. Cov baryons no yog ntxiv los ntawm sub-atomic cov ntsiab lus uas hu ua quarks koom nrog kev sib cuam tshuam.
Pom zoo:
Dab tsi yog qhov txiaj ntsig tseem ceeb ntawm kev taw qhia ntawm tes los ntawm kev sib cuag lub cev ncaj qha?
Kev taw qhia kuj tshwm sim ntawm cov hlwb uas yog kev sib cuag ntawm lub cev. Kev sib cuam tshuam ntawm cov proteins ntawm qhov chaw ntawm cov hlwb tuaj yeem ua rau muaj kev hloov pauv hauv cov cwj pwm ntawm tes. Piv txwv li, cov proteins nyob rau saum npoo ntawm T-cells thiab antigen nthuav tawm cov hlwb sib cuam tshuam los ua kom muaj kev taw qhia hauv T-cells
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Cov xwm txheej no tuaj yeem muab faib ua ob qhov tseem ceeb: interphase (hauv nruab nrab ntawm kev sib faib theem ua pawg G1 theem, S theem, G2 theem), thaum lub xov tooj ntawm tes tsim thiab ua nrog nws cov haujlwm metabolic; mitotic theem (M mitosis), thaum lub sij hawm lub cell yog replicating nws tus kheej
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua