Video: Yuav ua li cas kuv thiaj paub tus naj npawb ntawm electrons hauv ib lub caij?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov yooj yim tshaj plaws los nrhiav cov tus lej ntawm protons, neutrons, thiab electrons rau ib keeb yog saib cov lub ntsiab atomic tus lej nyob rau ntawm lub rooj sib tham. Qhov ntawd tus lej yog sib npaug rau cov tus lej ntawm protons. Cov tus lej ntawm protons yog sib npaug rau cov tus naj npawb ntawm electrons , tshwj tsis yog muaj ion superscript teev tom qab lub keeb.
Kuj kom paub yog, koj ua li cas nrhiav tus naj npawb ntawm electrons?
Cov tus naj npawb ntawm electrons nyob rau hauv ib tug nruab nrab atom yog sib npaug rau cov tus lej ntawm protons. Qhov loj tus lej ntawm lub atom (M) yog sib npaug rau cov sum tus lej ntawm protons thiab neutrons nyob rau hauv lub nucleus. Cov tus lej ntawm neutrons yog sib npaug rau qhov sib txawv ntawm qhov loj tus lej ntawm lub atom (M) thiab lub atomic tus lej (Z).
Ib tug kuj yuav nug, ua li cas koj nrhiav tau cov neutrons nyob rau hauv ib lub caij? Teb ceev. Qhov loj tus lej yog sum protons thiab neutrons . Qhov no txhais tau tias nrhiav tus tus naj npawb ntawm neutrons koj rho tawm tus naj npawb ntawm protons los ntawm pawg tus lej . Nyob rau hauv lub sij hawm, lub atomic tus lej yog cov tus naj npawb ntawm protons , thiab atomic mass yog qhov loj tus lej.
Hauv qhov no, pes tsawg tus electrons rau txhua lub caij?
Hluav taws xob orbiting nyob ib ncig ntawm lub nucleus ntawm ib tug atom yog teem nyob rau hauv lub plhaub - tseem hu ua "zog theem." Thawj lub plhaub tuaj yeem tuav tau ob leeg xwb electrons , thaum lub plhaub tom ntej tuav txog yim electrons.
2.1 Hluav taws xob , Protons, Neutrons, thiab Atoms.
| Element | Oxygen | |
|---|---|---|
| Cim | O | |
| Atomic No. | 8 | |
| Tus naj npawb ntawm cov hluav taws xob hauv txhua lub plhaub | Ua ntej | 2 |
| Thib ob | 6 |
Yuav ua li cas koj paub tus naj npawb ntawm valence electrons?
Rau nruab nrab atoms, lub tus naj npawb ntawm valence electrons yog sib npaug rau cov atom lub ntsiab pawg tus lej . Pab pawg tseem ceeb tus lej rau ib lub caij tuaj yeem pom los ntawm nws kem ntawm lub sijhawm teem sijhawm. Piv txwv li, carbon yog nyob rau hauv pawg 4 thiab muaj 4 valence electrons . Oxygen yog nyob rau hauv pawg 6 thiab muaj 6 valence electrons.
Pom zoo:
Yuav ua li cas koj nrhiav tau tus naj npawb ntawm electrons nyob rau hauv ib tug uncharged atom?
Tus naj npawb atomic sawv cev rau tus naj npawb ntawm protons hauv atom lub nucleus. Hauv ib qho atom uas tsis tau them nyiaj, tus naj npawb ntawm cov protons ib txwm sib npaug ntawm cov electrons. Piv txwv li, carbon atoms suav nrog rau protons thiab rau electrons, yog li cov pa roj carbon monoxide yog 6
Kuv yuav ua li cas thiaj paub yog tias kuv lub tshuab hluav taws xob ua haujlwm?
Txhawm rau kuaj lub transformer nrog digital multimeter (DMM), thawj zaug tua hluav taws xob rau lub voj voog. Tom ntej no, txuas cov coj ntawm koj DMM rau cov kab nkag. Siv DMM hauv AC hom los ntsuas qhov transformer thawj
Yuav ua li cas koj thiaj nrhiav tau tus naj npawb ntawm qhov tshwm sim hauv ib qho piv txwv?
Tom qab ntawd, muab cov naj npawb ntawm qhov tshwm sim los ntawm tus lej ntawm cov yob. Txij li thaum peb tsuas yog dov ib zaug xwb, ces tus naj npawb ntawm cov txiaj ntsig tau yog 6. Cov lus teb yog qhov chaw piv txwv yog 1, 2, 3, 4, 5, 6 thiab tus lej ntawm qhov tshwm sim tau yog 6
Yuav ua li cas koj paub tus naj npawb ntawm protons hauv ib lub atom?
Tus naj npawb ntawm protons, neutrons, thiab electrons hauv atom tuaj yeem txiav txim siab los ntawm cov txheej txheem yooj yim. Tus naj npawb ntawm protons nyob rau hauv lub nucleus ntawm lub atom yog sib npaug rau atomic tooj (Z). Tus naj npawb ntawm electrons nyob rau hauv ib tug nruab nrab atom yog sib npaug zos rau tus naj npawb ntawm protons
Kuv yuav ua li cas thiaj paub yog tias kuv cov txhuam hniav yuav tsum tau hloov?
Raws li txoj cai dav dav, yog tias txhuam txhuam tau hnav txog li ib lub quarter ntiv tes ntev, nws yog lub sijhawm los hloov nws. Yog tias cov pa roj carbon (cov txhuam hniav yog qhov tseem ceeb ntawm cov pa roj carbon nrog lub caij nplooj ntoos hlav hlau) qhia pom tias muaj kev tawg, tawg, lossis hlawv, txhuam yuav tsum tau hloov