Cov txheej txheem:
Video: Dab tsi yog ib qho atom ntawm lub rooj zaum?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib atom yog qhov tsawg tshaj plaws ntawm cov teeb meem ntawm cov teeb meem zoo tib yam uas tsim cov tshuaj keeb . Txhua yam khoom, kua, roj, thiab plasma yog tsim los ntawm atoms . Txhua atom yog tsim los ntawm ib tug nucleus thiab ib los yog ntau dua electrons khi rau lub nucleus. Lub nucleus yog tsim los ntawm ib los yog ntau tshaj protons thiab ib tug xov tooj ntawm neutrons.
Hais txog qhov no, koj ua li cas pom cov atoms ntawm lub rooj zaum?
2 Teb
- Mass → Moles thiab Moles → Atoms.
- 196.967 ua.
- Yog li, yog tias koj tau txais qhov loj ntawm ib lub caij, koj siv lub sij hawm lub sij hawm kom pom nws cov molar loj, thiab muab cov khoom loj los ntawm qhov sib txuam ntawm molar mass.
- Thaum koj muaj moles, muab faib los ntawm Avogadro tus lej los xam cov naj npawb ntawm cov atoms.
Ib tug kuj yuav nug, vim li cas lub caij 118 thiaj li kim? Feem ntau kim ntuj keeb yog francium, tab sis nws lwj yog li ntawd sai sai nws tsis tuaj yeem sau tau los muag. Yog tias koj tuaj yeem yuav nws, koj yuav them ntau lab daus las rau 100 grams. Feem ntau kim ntuj keeb uas ruaj khov txaus los yuav yog lutetium. Atoms ntawm hluavtaws cov ntsiab lus raug nqi lab daus las los tsim.
Tsis tas li ntawd, thawj 20 lub ntsiab lus ntawm lub rooj sib tham yog dab tsi?
Raws li koj tuaj yeem pom, Lithium, Beryllium, Sodium, Magnesium, Aluminium, Potassium, thiab Calcium yog hlau tawm ntawm thawj 20 lub ntsiab lus. Hydrogen , Helium , Carbon, Nitrogen, Oxygen, Fluorine, Neon, Phosphorus, Sulfur, Chlorine, thiab Argon, yog cov hlau tsis muaj hlau hauv thawj 20 lub ntsiab lus.
Yuav ua li cas atoms teem nyob rau hauv lub periodic rooj ntawm lub ntsiab?
Cov periodic rooj ntawm cov ntsiab lus npaj tag nrho cov tshuaj uas paub cov ntsiab lus nyob rau hauv cov ntaub ntawv array. Cov ntsiab lus yog npaj los ntawm sab laug mus rau sab xis thiab sab saum toj mus rau hauv qab kom nce atomic naj npawb. Kev txiav txim feem ntau coincides nrog nce atomic loj. Cov kab yog hu ua lub sijhawm.
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Ib qho thaiv ntawm lub rooj zaum hauv lub sijhawm yog cov txheej txheem tshuaj lom neeg uas muaj lawv qhov sib txawv ntawm cov electrons feem ntau nyob hauv tib hom atomic orbital. Txhua lub block muaj npe tom qab nws tus yam ntxwv orbital: s-block, p-block, d-block, thiab f-block