Video: Dab tsi yog tus kheej ntawm lub atom saum toj no?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tus naj npawb ntawm protons nyob rau hauv lub nucleus ntawm ib atom yog nws atomic tus lej (Z). Qhov no yog lub ntsiab txhais ntawm ib lub caij: Nws tus nqi txiav txim qhov tus kheej ntawm atom . Piv txwv li, ib qho atom uas muaj rau protons yog lub ntsiab carbon thiab muaj cov atomic tus lej 6, tsis hais pes tsawg neutrons lossis electrons nws yuav muaj.
Yog li, dab tsi subatomic particles txiav txim siab tus kheej ntawm atom?
Protons yog cov subatomic particle uas txiav txim siab tus kheej ntawm lub caij.
Qhov thib ob, dab tsi 2 feem ntawm ib qho atom ua tus atomic? Tus naj npawb atomic tshwj xeeb qhia txog cov tshuaj lom neeg. Nws zoo ib yam rau tus nqi ntawm cov nucleus. Nyob rau hauv ib tug uncharged atom, tus naj npawb atomic kuj yog sib npaug rau tus naj npawb ntawm electrons . Qhov suav ntawm tus lej atomic Z thiab tus naj npawb ntawm neutrons N muab cov lej A ntawm ib lub atom.
Ib yam li ntawd, nws yog nug, dab tsi yog tus kheej ntawm ib lub caij?
Tus kheej ntawm lub ntsiab yog nws tus lej atomic, uas yog tus tus naj npawb ntawm protons nyob rau hauv lub nucleus ntawm ib qho ntawm nws cov atoms.
Lub atom oxygen zoo li cas?
Oxygen . Oxygen yog ib qho tshuaj lom neeg - ib yam khoom uas muaj tsuas yog ib hom atom . Nws cov cim tshuaj lom neeg yog O, thiab nws atomic tus lej yog 8, uas txhais tau tias ib oxygen atom muaj yim protons hauv nws cov nucleus. Oxygen yog ib qho roj ntawm chav tsev kub thiab tsis muaj xim, tsis hnov tsw lossis saj.
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