Video: Vim li cas tus naj npawb ntawm cov protons sib npaug rau cov electrons?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov qauv ntawm Atoms. Ib qho atom muaj ib qho txiaj ntsig zoo ntawm cov nucleus uas nyob ib puag ncig los ntawm ib lossis ntau qhov tsis zoo them nqi hu ua electrons . Cov tus naj npawb ntawm protons pom nyob rau hauv lub nucleus sib npaug tus tus naj npawb ntawm electrons uas nyob ib puag ncig nws, muab lub atom rau nruab nrab nqi ( neutrons muaj pes tsawg tus nqi).
Tsis tas li ntawd, vim li cas tus naj npawb ntawm electrons thiab protons tib yam?
Tiag tiag cov proton thiab hluav taws xob suav ntawm ib qho atom sib npaug tsuas yog thaum lub atom yog nruab nrab ntawm tus nqi. Peb lub atomic particles ntawm ib lub atom yog cov protons , uas nqa ib tug zoo nqi, lub electrons uas nqa tus nqi tsis zoo thiab cov neutrons uas tsis muaj nqi.
Ib tug kuj yuav nug, yog vim li cas yuav tsum tus naj npawb ntawm protons thiab electrons nyob rau hauv ib tug nruab nrab atom ib txwm zoo ib yam? Protons raug nqi zoo, electrons raug them tsis zoo (nrog rau ib yam magnitude ntawm tus nqi ib particle li a proton ). Neutrons tsis muaj nqi. Tam sim no, hauv ib " nruab nrab atom ", cov tus naj npawb ntawm protons yuav tsum sib npaug rau cov tus lej ntawm electrons , txwv tsis pub nws yuav tsis yog nruab nrab.
Ib yam li ntawd, nws tau nug, puas yog tus naj npawb ntawm protons sib npaug ntawm cov electrons?
Cov tus naj npawb ntawm protons nyob rau hauv lub nucleus ntawm lub atom yog sib npaug mus rau atomic tus lej (Z). Cov tus naj npawb ntawm electrons nyob rau hauv ib tug nruab nrab atom yog sib npaug mus rau tus naj npawb ntawm protons . Qhov loj tus lej ntawm lub atom (M) yog sib npaug mus rau lub sum ntawm cov tus naj npawb ntawm protons thiab neutrons nyob rau hauv lub nucleus.
Yuav ua li cas koj paub cov neutrons?
Nco ntsoov tias lub nucleus ntawm lub atom yog tsim los ntawm protons thiab neutrons . Thiab tus naj npawb ntawm cov hais tam sim no nyob rau hauv lub nucleus yog hu ua huab hwm coj (tseem hu ua atomic mass). Yog li, los txiav txim tus naj npawb ntawm neutrons Hauv atom, peb tsuas yog yuav tsum rho tawm tus lej ntawm protons los ntawm tus lej loj.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
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
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Dab tsi yog tus naj npawb ntawm protons hauv atom ntawm silicon nrog cov lej loj tshaj plaws?
Piv txwv li, silicon muaj 14 protons thiab 14 neutrons. Nws atomic tooj yog 14 thiab nws atomic mass yog 28. Qhov feem ntau isotope ntawm uranium muaj 92 protons thiab 146 neutrons. Nws atomic tooj yog 92 thiab nws atomic mass yog 238 (92 + 146). 2.1 Electrons, Protons, Neutrons, thiab Atoms. Element Iron Symbol Fe Number of Electrons in Txhua Plhaub Thawj 2 Thib Ob 8 Peb 14
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no