Cov lus me yog qhov me me uas tsis muaj peev xwm cais tau nyob hauv fab tshuaj lom neeg. Ib qho zoo ntawm cov atom muaj cov ntom ntom hluav taws xob thiab ntau qhov tsis zoo ntawm cov xaim hluav taws xob puag ncig lub nucleus. Lub nucleus ntawm atom tsis zoo yog qhov tsis zoo them, thiab cov hluav taws xob ib puag ncig tsis zoo raug them. Lub nucleus ntawm atom zoo muaj cov pov thawj zoo tiv thaiv cov protons thiab neutrons nruab nrab. Cov tshuaj tua kab mob hauv lub nucleus ntawm lub atom tsis zoo yog them tsis zoo, yog li ntawd lub nucleus ntawm lub atom tsis zoo raug them nqi. Thaum tus naj npawb ntawm cov protons yog tib yam li tus naj npawb ntawm cov hluav taws xob, qhov atom yog nruab nrab; txwv tsis pub, nws yog ib lub ion nrog tus nqi them qhov zoo lossis tsis zoo. Nyob ntawm seb muaj pes tsawg tus protons thiab neutrons, cov hom atoms kuj sib txawv: tus naj npawb ntawm cov protons txiav txim siab seb lub koom haum twg atom yog, thiab tus lej ntawm neutrons txiav txim siab isotope ntawm lub ntsiab. [3] Atoms ua cov tshuaj lwg me me thiab tib hom nqi ntawm cov roj molecules uas tsim cov tshuaj tawm tsam sib luag, thiab cov nqi sib txawv sib txawv.
Qhov kev txiav txim ntawm lub atomic inch yog li 10⁻¹⁰m. Qhov loj ntawm lub atom yog qhov loj me, feem ntau -27th lub zog, thiab qhov loj yog tsuas yog nyob rau hauv protons thiab neutrons. Muaj cov hluav taws xob faib tawm sab nraum lub nucleus, thiab txoj kev hloov pauv hluav taws xob tsim hluav taws xob spectrum. Lub tshuab hluav taws xob txiav txim siab lub zog thaj chaw ntawm ib yam thiab muaj lub luag haujlwm zoo rau cov hlau nplaum sib nqus ntawm cov atom. Txhua lub atoms nrog tib tus naj npawb ntawm protons tsim cov khoom, thiab feem ntau ntawm txhua lub caij muaj ib qho isotope tsis khov uas tuaj yeem hla cov pa hluav taws xob tsis zoo.
Lub atom yog Ameslikas kev paub daws teeb tswv yim nrog ontological tseem ceeb hauv philosophy. Nrog kev vam meej ntawm kev nkag siab ntawm tib neeg, lub atom hloov zuj zus los ntawm cov tswv yim paub daws teeb mus rau lub thev naus laus zis kev tshawb xav. Atomic nuclei thiab electrons yog microscopic particles thiab suav qhov atoms. Thiab cov atoms tuaj yeem tsim lwg me me.
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